Updated on 2025/01/09

Information

 

写真a

 
INOISHI ATSUSHI
 
Organization
Institute for Materials Chemistry and Engineering Department of Advanced Device Materials Associate Professor
Interdisciplinary Graduate School of Engineering Sciences Department of Interdisciplinary Engineering Sciences(Concurrent)
Title
Associate Professor
Contact information
メールアドレス
Tel
0925837791
Profile
カチオン伝導及びアニオン伝導の全固体電池の研究開発を行っている。
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Research Areas

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electron device and electronic equipment

  • Nanotechnology/Materials / Inorganic compounds and inorganic materials chemistry

Degree

  • Ph.D

Research History

  • Kyushu University Institute for Materials Chemistry and Engineering Associate Professor

    2023.12 - Present

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  • Kyushu University Assistant Professor

    2014 - 2023.11

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  • なし

Research Interests・Research Keywords

  • Research theme:全固体電池

    Keyword:全固体電池

    Research period: 2024

  • Research theme:ハロゲン化物電池

    Keyword:ハロゲン化物電池

    Research period: 2024

  • Research theme:イオン導電体

    Keyword:イオン導電体

    Research period: 2024

  • Research theme:In-situ formed electrolyte

    Keyword:LiH

    Research period: 2020.4

  • Research theme:Battery based on anion shuttle

    Keyword:Electrode material

    Research period: 2015.10

  • Research theme:All-solid-state lithium(Sodium)-ion batteries

    Keyword:NASICON

    Research period: 2014.10

Awards

  • 第8回新化学技術研究奨励賞

    2019.6   新化学技術推進協会   全固体電池を用いた高電位正極材料の開発

Papers

  • TiH2-based anode: In situ formation of solid electrolyte for high volumetric energy density with minimal content of conducting agent Reviewed International journal

    #Yixin Chem, @Atsushi Inoishi, @Shigeto Okada, @Hikari Sakaebe, @Ken Albrecht

    Journal of Energy Storage   86   111286   2024.3

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  • Electrode thickness dependence of charge–discharge performance and reaction distribution of an in-situ-formed solid electrolyte for MgH<inf>2</inf> anodes Invited Reviewed International journal

    #Yixin Chen , @Atsushi Inoishi, Kazuki Yoshii, #Hiroki Sato, @Shigeto Okada, @Hikari Sakaebe, @Ken Albrecht

    Electrochimica Acta   485   144083 - 144083   2024.3   ISSN:0013-4686 eISSN:1873-3859

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    MgH2 conversion anodes are considered promising anode active materials for use in lithium batteries because of their high theoretical lithium storage capacity and suitable redox potential. In a previous study, MgH2 was clarified to function as an anode material that forms a solid electrolyte in situ and to work without an electrolyte added to the composite electrode because of the in situ formation of LiH with an ionic conductivity of 10−7 S cm−1 at 120 °C. In the present study, to improve the energy density, cells with thick MgH2 electrodes were prepared and the reaction mechanism was investigated. With increasing thickness of the MgH2 electrode from 84 to 420 μm, the capacity decreased from 1628 to 425 mAh g−1 and the initial lithiated areal capacity was constant among cells with electrodes thicker than 140 μm. In addition, the unreacted MgH2 was found to be mainly distributed near the current collector by ex situ XPS (X-Ray Photoelectron Spectroscopy) measurement. This result differs substantially from that observed for a thick Mg(BH4)2 anode, which can self-generate LiBH4 with a high ionic conductivity of 10−3 S cm−1. The results of the present study indicate that the ionic conductivity of the in-situ-formed electrolyte strongly influences the relationship between battery performance and electrode thickness of an anode that forms an electrolyte in situ.

    DOI: 10.1016/j.electacta.2024.144083

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  • In situ Electrolyte Design: Understanding the Prospects and Limitations of a High Capacity Ca(BH4)2 Anode for All Solid State Batteries Reviewed International coauthorship International journal

    Yixin Chen, Ryo Sakamoto, Atsushi Inoishi, Shigeto Okada, Hikari Sakaebe, Ken Albrecht, Duncan H. Gregory

    Batteries & Supercaps   7 ( 4 )   2024.1   eISSN:2566-6223

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    All-solid-state batteries have gained considerable attention due to their high safety and energy density. However, solid state electrolytes which contribute to the ionic conductivity component of a composite electrode, are not utilized during the electrode reaction and cannot directly contribute to capacity. This study focuses on decreasing the amount of electrolyte in the electrode by utilizing Ca(BH4)2 as an active electrode material. In this work, the charge-discharge properties of Ca(BH4)2 as an electrode material were determined for the first time. The lithiation of the Ca(BH4)2 anode creates LiBH4 within the electrode mixture, providing new Li-ion conduction pathways within the composite electrode in situ. An electrode fabricated only from Ca(BH4)2 and acetylene black (AB) showed an initial capacity of 473 mAh g−1 at 120 °C, which is comparable to the performance obtained from a composite electrode additionally containing electrolyte. Evidently, Ca(BH4)2 is a promising candidate negative electrode for increased energy density all-solid-state Li-ion batteries.

    DOI: 10.1002/batt.202300550

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  • In situ Formation of Solid Electrolyte during Lithiation Process of MgCl2 anode in an All-solid-state Lithium Battery Reviewed International journal

    @Atsushi Inoishi, @Miyuki Suyama, Eiichi Kobayashi, @Shigeto Okada, @Hikari Sakaebe

    Batteries & Supercaps   6 ( 8 )   2023.6   eISSN:2566-6223

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    All-solid-state lithium batteries, which are free from the risk of liquid entanglement, are expected to have high energy densities and high safety. In this study, the omission of a solid electrolyte from the electrode and an increase in thickness of the electrode were investigated to improve the energy density of all-solid-state lithium batteries. We focused on MgCl2, which reversibly self-generates a solid electrolyte during the lithiation process, as an anode material that can operate without a solid electrolyte incorporated into the electrode mixture. Indeed, the electrochemical properties of the MgCl2 electrode were approximately the same with or without a pre-contained solid electrolyte, LiBH4. X-ray diffraction and X-ray absorption spectroscopy analyses showed that lithiation produced Mg and LiCl, which were recovered to MgCl2 by subsequent delithiation. The available electrode thickness was also investigated, and the thickness limit for the first lithiation was found to be ∼100 μm.

    DOI: 10.1002/batt.202300187

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  • Room-temperature Operation of All-solid-state Chloride-ion Battery with Perovskite-type CsSn0.95Mn0.05Cl3 as a Solid Electrolyte Reviewed International journal

    Ryo SAKAMOTO, Nobuaki SHIRAI, Liwei ZHAO, Atsushi INOISHI, Hikari SAKAEBE, Shigeto OKADA

    Electrochemistry   91 ( 7 )   077003 - 077003   2023.6   ISSN:13443542 eISSN:21862451

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Electrochemical Society of Japan  

    <p>Perovskite-type CsSnCl<sub>3</sub> is an attractive candidate for use as a solid electrolyte in all-solid-state chloride-ion batteries because it exhibits high ionic conductivity. However, perovskite-type CsSnCl<sub>3</sub> is metastable at room temperature and easily undergoes a phase transition to a stable phase. Here, we prepared perovskite-type CsSn<sub>0.95</sub>Mn<sub>0.05</sub>Cl<sub>3</sub>, in which the Sn<sup>2+</sup> in CsSnCl<sub>3</sub> is partly substituted with Mn<sup>2+</sup>, via a mechanical milling method. Differential scanning calorimetry showed that the perovskite-type CsSn<sub>0.95</sub>Mn<sub>0.05</sub>Cl<sub>3</sub> is stable to −15 °C. Moreover, it exhibits a high chloride ionic conductivity of 2.0 × 10<sup>−4</sup> S cm<sup>−1</sup> at 25 °C. We demonstrated the room-temperature operation of an all-solid-state chloride-ion battery with a BiCl<sub>3</sub> cathode, an Sn anode, and CsSn<sub>0.95</sub>Mn<sub>0.05</sub>Cl<sub>3</sub> as the electrolyte. The first discharge capacity of the all-solid-state cell at room temperature was 169 mAh g<sup>−1</sup> based on the weight of BiCl<sub>3</sub>. X-ray diffraction and X-ray photoelectron spectroscopic analyses confirmed that the reaction mechanism of the cell is derived from the redox reaction of BiCl<sub>3</sub> and Sn.</p>

    DOI: 10.5796/electrochemistry.23-00041

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  • Superionic Conductivity in Sodium Zirconium Chloride-Based Compounds Reviewed International journal

    @Atsushi Inoishi, Akinobu Nojima, @Maika Tanaka, @Miyuki Suyama, @Shigeto Okada, @Hikari Sakaebe

    Chemistry-A European Journal   29 ( 52 )   e202301586   2023.6   ISSN:0947-6539 eISSN:1521-3765

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    All-solid-state sodium batteries are attracting intensive attention, and chloride-based solid electrolytes are promising candidates for use in such batteries because of their high chemical stability and low Young's modulus. Here, we report new superionic conductors based on polyanion-added chloride-based materials. Na0.67Zr(SO4)0.33Cl4 showed a high ionic conductivity of 1.6 mS cm−1 at room temperature. X-ray diffraction analysis indicated that the highly conducting materials are mainly a mixture of an amorphous phase and Na2ZrCl6. The conductivity might be dominated by the electronegativity of the central atom of the polyanion. Electrochemical measurements reveal that Na0.67Zr(SO4)0.33Cl4 is a sodium ionic conductor and is suitable for use as a solid electrolyte in all-solid-state sodium batteries.

    DOI: 10.1002/chem.202301586

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  • Preparation of a single-phase all-solid-state battery via the crystallization of the amorphous sodium vanadium phosphate Reviewed International journal

    #Atsushi Inoishi, #Naoko Setoguchi, #Shigeto Okada, #Hikari Sakaebe

    Physical Chemistry Chemical Physics   24 ( 44 )   27375 - 27379   2022.10   ISSN:1463-9076 eISSN:1463-9084

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    A single-phase all-solid-state battery was prepared from amorphous Na3V2(PO4)3 (NVP) powder, which was synthesized by mechanical milling of the crystalline NVP. It was found that the structure of the amorphous NVP was much different from that of the crystalline NVP from the FT-IR measurement. The charge-discharge curves of the half-cell using organic electrolyte were also much different from those in the case of crystalline NVP. By using amorphous NVP, a much higher ionic conductivity of the sintered pellet was observed compared with the case using crystalline NVP because of the high density of the pellet. The single-phase all-solid-state battery prepared from the amorphous NVP showed reasonable charge-discharge properties at room temperature.

    DOI: 10.1039/D2CP04328A

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  • FeF3 as Reversible Cathode for All-Solid-State Fluoride Batteries Reviewed International journal

    #Atsushi Inoishi, #Naoko Setoguchi, #Hironobu Hori, Eiichi Kobayashi, Ryo Sakamoto, #Hikari Sakaebe, #Shigeto Okada

    Advanced Energy & Sustainability Research   3 ( 12 )   2200131   2022.10   ISSN:2699-9412

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    Fluoride batteries are attracting intensive attention because they can provide a higher energy density than conventional lithium-ion batteries. Among various metal fluorides, FeF3 is a promising candidate for the cathode material of fluoride batteries because of its high theoretical capacity. In this report, the reversibility of an FeF3 cathode is investigated in conjunction with fluorite-type Ba0.6La0.4F2.4 as the electrolyte and Pb as the counter-electrode material. For the first time, the discharge-charge performance of a fluoride battery using FeF3 cathode is investigated. The initial discharge capacity is 579 mAh g(-1), and a capacity of 461 mAh g(-1) is retained at the 10th cycle. The reversible conversion reaction mechanism for FeF3 is clarified by X-ray diffraction and X-ray adsorption spectroscopy. The results revealed that FeF3 is reduced to FeF2 at the first-stage plateau and then to Fe metal at the second-stage plateau; they also reveal that the reverse process proceeded during charging. Ex situ scanning electron microscopy observations show that the morphology of the cathode changed reversibly and that, when the battery is in the discharged state, voids are present because of shrinkage of the electrode.

    DOI: 10.1002/aesr.202200131

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  • Eldfellite-type cathode material, NaV(SO4)2, for Na-ion batteries Reviewed International journal

    #Akira Nishio,Yuji Ishado, Kosuke Nakamoto, Eiichi Kobayashi, #Atsushi Inoishi, #Hikari Sakaebeb, #Shigeto Okada

    Materials Advances   3 ( 3 )   6993 - 7001   2022.6   eISSN:2633-5409

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    In this research, an eldfellite-type material containing V as a transition metal, NaV(SO<sub>4</sub>)<sub>2</sub>, was investigated to achieve higher potentials and capacities through the use of a multi-redox pair. Average working...

    DOI: 10.1039/D2MA00031H

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  • High Capacity All-Solid-State Lithium Battery Enabled by In Situ Formation of Ionic Conduction Path by Lithiation of MgH2 Reviewed International journal

    Atsushi Inoishi, Hiroki Sato, Yixin Chen, Hikaru Saito, Ryo Sakamoto, Hikari Sakaebe, Shigeto Okada

    RSC advances   12   10749 - 10754   2022.3

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  • All-solid-state Chloride-ion Battery with Inorganic Solid Electrolyte Invited Reviewed International journal

    Ryo Sakamoto, Nobuaki Shirai, Atsushi Inoishi, Shigeto Okada

    ChemElectroChem   2021.9

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    DOI: 10.1002/celc.202101017

  • The In-situ Formation of an Electrolyte via the Lithiation of Mg(BH4)2 in an All-solid-state Lithium Battery Reviewed International journal

    Hiroki Sato, Ryo Sakamoto, Hironari Minami, Hiroaki Izumi, Keiko Ideta, Atsushi Inoishi, Shigeto Okada

    Chemical Communications   In press   2021.2

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  • Effect of Na3BO3 Addition into Na3V2(PO4)3 Single-Phase All-Solid-State Batteries Reviewed International journal

    Akira Nishio, Nobuaki Shirai, Hironari Minami, Hiroaki Izumi, Atsushi Inoishi, Shigeto Okada

    Electrochemistry   In press   2021.2

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  • An All-Solid-State Bromide Ion Battery Reviewed International journal

    @Atsushi Inoishi, Masahiro Hokazono, @Eiko Kashiwazaki, @Naoko Setoguchi, Takaaki Sakai, @Ryo Sakamoto, @Shigeto Okada

    ChemElectroChem   2020.12

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    DOI: 10.1002/celc.202001481

  • Exploring Factors Limiting Three-Na+ Extraction from Na3V2(PO4)3 Reviewed International journal

    @Yuji ISHADO, @Atsushi INOISHI, @Shigeto OKADA

    Electrochemisty   2020.7

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    DOI: https://doi.org/10.5796/electrochemistry.20-00080

  • Effect of Li 3 BO 3 addition to NASICON-type single-phase all-solid-state lithium battery based on Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 Reviewed International journal

    A. Nishio, A. Inoishi, A. Kitajou, S. Okada

    Journal of the Ceramic Society of Japan   ( 127 )   18 - 21   2018.12

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    DOI: 10.2109/jcersj2.18150

  • Single‐phase All‐solid‐state Silver Battery using Ag1.5Cr0.5Ti1.5(PO4)3 as Anode, Cathode, and Electrolyte Reviewed International journal

    3   9965 - 9968   2018.9

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  • Single-Phase All-Solid-State Lithium Battery Based on LiR1.5Cr0.5Ti1.5(PO4)#D3#D for High Rate Capability and Low Temperature Operation Reviewed International journal

    Atsushi Inoishi, Akira Nishio, Yuto Yoshioka, Ayuko Kitajou, Shigeto Okada

    Chemical Communications   in press   2018.3

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    DOI: 10.1039/C8CC00734A

  • Single-Phase All-Solid-State Lithium-Ion Battery Using Li3V2(PO4)3 as the Cathode, Anode, and Electrolyte Invited Reviewed International journal

    A. Inoishi, T. Omuta, Y. Yoshioka, E. Kobayashi, A. Kitajou, S. Okada

    Chemistry SELECT   ( 2 )   7925 - 7929   2017.9

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  • Improvement in the energy density of Na₃V₂(PO₄)₃ by Mg substitution Reviewed International journal

    2017.8

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    DOI: 10.1002/celc.201700540R1

  • A Single-Phase, All-Solid-State Sodium Battery Using Na3−xV2−xZrx(PO4)3 as the Cathode, Anode, and Electrolyte Reviewed International journal

    4   1600942 - 1600946   2017.3

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    DOI: 10.1002/admi.201600942

  • Low temperature operation of the solid-oxide Fe-air rechargeable battery using La0.9Sr0.1Ga0.8Mg0.2O3 oxide ion conductor Reviewed International journal

    A. Inoishi, J. Hyodo, H. Kim, T. Sakai, S. Ida, T. Ishihara

    Journal of Materials Chemistry A   3   8260 - 8264   2015.3

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  • Discharge performance of Solid State Oxygen Shuttle Metal-Air Battery Using Ca Stabilized ZrO2 Electrolyte Reviewed International journal

    A. Inoishi, H. Kim, T. Sakai, Y. W. Ju, S. Ida, T. Ishihara

    ChemSusChem   8   1264 - 1269   2015.1

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  • Effect of Ni/Fe ratio on the performance and stability of the Fe-air rechargeable battery using a La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte Reviewed International journal

    A. Inoishi, T. Sakai, Y. W. Ju, S. Ida, T. Ishihara

    International Journal of Hydrogen Energy   in press   2014.7

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  • Lithium–Air Oxygen Shuttle Battery with a ZrO2-Based Ion-Conducting Oxide Electrolyte Invited Reviewed International journal

    in press   2014.6

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    DOI: 10.1002/cplu.201402041

  • Improved Cycle Stability of Fe-Air Solid State Oxide Rechargeable Battery Using LaGaO3-Based Oxide Ion Conductor Reviewed International journal

    A. Inoishi, T. Sakai, Y. W. Ju, S. Ida, T. Ishihara

    Journal of Power Sources   262   310 - 315   2014.4

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  • A Rechargeable Si-air Solid State Oxygen Shuttle Battery Incorporating an Oxide Ion Conductor Reviewed International journal

    A. Inoishi, T. Sakai, Y. W. Ju, S. Ida, T. Ishihara

    Journal of Materials Chemistry A   ( 1 )   15212 - 15215   2013.10

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  • Mg–air oxygen shuttle batteries using a ZrO2-based oxide ion-conducting electrolyte Reviewed International journal

    49   4961 - 4963   2013.4

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    DOI: DOI: 10.1039/c3cc40880a

  • Oxidation Rate of Fe and Electrochemical Performance of Fe-air Rechargeable Battery using LaGaO3 based Oxide Ion Conductor Reviewed International journal

    A. Inoishi, Y. Okamoto, Y. W. Ju, S. Ida, T, Ishihara

    RSC advances   3   8820 - 8825   2013.3

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    DOI: 10.1039/c3ra23337e

  • Ni–Fe–Ce(Mn,Fe)O2 cermet anode for rechargeable Fe– Air battery using LaGaO3 oxide ion conductor as electrolyte Reviewed International journal

    3   3024 - 3030   2012.12

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    DOI: 10.1039/c2ra23370c

  • Fe-air rechargeable battery using oxide ion conducting electrolyte of Y2O3 stabilized ZrO2 Reviewed International journal

    A. Inoishi, Y. W. Ju, S. Ida, T. Ishihara

    Journal of Power Sources   229   12 - 15   2012.12

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  • High capacity of an Fe–air rechargeable battery using LaGaO3-based oxide ion conductor as an electrolyte Reviewed International journal

    14   12819 - 12822   2012.7

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    DOI: 10.1039/c2cp42166f

  • Manganese electrode for all-solid-state fluoride batteries.

    Inoishi A, Setoguchi N, Motoyama M, Okada S, Sakaebe H

    Chemical communications (Cambridge, England)   2025.1   ISSN:1359-7345

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    DOI: 10.1039/d4cc04418e

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  • Compatibility of Halide Electrolytes in Solid-State Li-S Battery Cathodes

    Shoma Yanagihara, Jan Huebner, Zheng Huang, Atsushi Inoishi, Hirofumi Akamatsu, Katsuro Hayashi, Saneyuki Ohno

    Chemistry of Materials   2024.12   ISSN:0897-4756 eISSN:1520-5002

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    The utilization of earth-abundant and high-capacity sulfur in solid-state batteries presents a promising strategy to circumvent the use of rare transition metals and enhance achievable specific energy. However, numerous challenges remain. The transport limitation within the cathode composite, particularly with sulfide electrolytes during charging, has been identified as a major degradation mechanism in solid-state Li-S batteries. This degradation is linked to electrolyte oxidation and a concomitant reduction in the effective ionic conductivity of the cathode composite. Inspired by the sufficiently high oxidation stability of halide-based electrolytes, we investigated their compatibility with solid-state Li-S batteries in this work. The electrochemical stability of halides in contact with conductive additives, the stability window of fast ion transport in the composite electrodes, and chemical compatibility with sulfur-active materials (e.g., S and Li2S), in addition to the cyclability of the halide-based composite electrodes, are explored. Three halides were employed as model electrolytes: Li3InCl6, Li3YCl6, and Li3YBr6. Despite its high oxidation stability, Li3InCl6 exhibited rapid degradation due to electrolyte reduction. The composite with Li3YCl6 lost its capacity because of chemical incompatibility, especially with Li2S, resulting in the formation of LiYS2 at the interface. In contrast, Li3YBr6 demonstrated superior performance, maintaining a capacity of 1100 mAh gS-1 for 20 cycles (normalized to the sulfur content in the cathode material). This study elucidates the degradation mechanisms of halide-based solid-state Li-S batteries and proposes potential design strategies to mitigate chemical incompatibility issues.

    DOI: 10.1021/acs.chemmater.4c02159

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  • Super Chloride Ionic Conductivity in CsSnCl<inf>3</inf>-Based Perovskite Compound and Its Application for Solid-State Chloride Batteries

    Liwei Zhao, Atsushi Inoishi, Hidenori Miki, Megumi Motoyama, Shigeto Okada, Takamasa Asano, Atsushi Sakuda, Akitoshi Hayashi, Hikari Sakaebe

    Advanced Energy and Sustainability Research   5 ( 12 )   2024.12   ISSN:2699-9412 eISSN:2699-9412

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    A CsSnCl3-based solid electrolyte in which 5% of Sn sites are occupied by Y ions, CsSn0.95Y0.05Cl3.05 (CSYC), is developed using a one-step mechanical ball-milling method. CSYC exhibits a stable cubic perovskite crystal structure and a high chloride ion conductivity of 4.9 mS cm−1. The relative density of a CSYC pellet following cold pressing without heat treatment is 97.5%. The high relative density and ionic conductivity are considered to originate from the high mechanical plasticity of the pellets, as evidenced by a low Young's modulus of 8.2 GPa. An all-solid-state chloride ion battery cell using CSYC as the electrolyte, BiCl3 as the active cathode material, and Sn as the anode is confirmed to operate at room temperature. The cell shows a large initial discharge capacity of 178 mAh g−1, ≈70% utilization, and good capacity retention with a reversible capacity of 100 mAh g−1 after 40 cycles. The mechanical plasticity of CSYC is considered to be a major contributor to its high ionic conductivity and good battery cycling performance.

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  • In situ formation of an intimate solid-solid interface by reaction between MgH<inf>2</inf> and Ti to stabilize metal hydride anode with high active material content

    Yixin Chen, Atsushi Inoishi, Shigeto Okada, Hikari Sakaebe, Ken Albrecht

    Journal of Magnesium and Alloys   12 ( 8 )   3193 - 3203   2024.8   ISSN:2213-9567 eISSN:2213-9567

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    MgH2 and TiH2 have been extensively studied as potential anode materials due to their high theoretical specific capacities of 2036 and 1024 mAh/g, respectively. However, the large volume changes that these compounds undergo during cycling affects their performance and limits practical applications. The present work demonstrates a novel approach to limiting the volume changes of active materials. This effect is based on mechanical support from an intimate interface generated in situ via the reaction between MgH2 and Ti within the electrode prior to lithiation to form Mg and TiH2. The resulting Mg can be transformed back to MgH2 by reaction with LiH during delithiation. In addition, the TiH2 improves the reaction kinetics of MgH2 and enhances electrochemical performance. The intimate interface produced in this manner is found to improve the electrochemical properties of a MgH2-Ti-LiH electrode. An exceptional reversible capacity of 800 mAh/g is observed even after 200 cycles with a high current density of 1 mA/cm2 and a high proportion of active material (90 wt%) at an operation temperature of 120 °C. This study therefore showcases a new means of improving the performance of electrodes by limiting the volume changes of active materials.

    DOI: 10.1016/j.jma.2024.08.006

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  • TiH<inf>2</inf>-based anode: In situ formation of solid electrolyte for high volumetric energy density with minimal content of conducting agent Reviewed

    Yixin Chen, Atsushi Inoishi, Shigeto Okada, Hikari Sakaebe, Ken Albrecht

    Journal of Energy Storage   86   111286 - 111286   2024   ISSN:2352-152X eISSN:2352-1538

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    Herein, we report the fabrication of an electrode composite with an ultra-high active material content (90 wt%). This composite was possible because of the utilization of TiH2 as an anode active material that forms a solid electrolyte (LiH) in situ and functions as an electronic conductor, enabling a substantial reduction of the amount of conductor additive in the electrodes. The electrochemical performance of the TiH2-based electrodes with a high active material content was comparable to that of electrode composites that include a solid electrolyte because of sufficient Li+-ion conduction pathways provided by the LiH formed in situ. To further increase the capacity of the TiH2-based electrode, MgH2 (theoretical capacity: 2036 mAh/g) was mixed with TiH2 to function as an active material. TiH2, which is known to exhibit high electron conductivity and a high density, is expected to be used as a partial substitute for low-density carbon additives to increase the volumetric energy density of batteries and their active material content. Hence, the xMgH2-(1 − x)TiH2-AB (AB: acetylene black) electrode composite exhibited a high active material content (90 wt%) and improved volumetric energy density (1687 Wh/L, based on the anode) compared with a MgH2-AB (70:30 wt%) electrode composite (1157 Wh/L), even when the AB content of the xMgH2-(1 − x)TiH2-AB composite was 10 wt%. In addition, a MgH2-TiH2-VGCF (VGCF: vapor-grown carbon fiber) based electrode composite exhibited the highest volumetric and gravimetric energy density (2154 Wh/L, 1888 Wh/kg) among the investigated composites, facilitated by sufficient electron pathways provided by VGCF.

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  • Enhanced Electrochemical Performance of Ca-Doped Na3V2(PO4)2F3/C Cathode Materials for Sodium-Ion Batteries Reviewed International journal

    Diah Agustina Puspitasari, Jagabandhu Patra, Rahmandhika Firdauzha Hary Hernandha, Yu-Shen Chiang, Atsushi Inoishi, Bor Kae Chang, Tai-Chou Lee, Jeng-Kuei Chang

    ACS Appl. Mater. Interfaces   16 ( 1 )   496 - 506   2023.12   ISSN:1944-8244 eISSN:1944-8252

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    Na3V2(PO4)2F3 (NVPF) with a NASICON structure has garnered attention as a cathode material owing to its stable 3D structure, rapid ion diffusion channels, high operating voltage, and impressive cycling stability. Nevertheless, the low intrinsic electronic conductivity of the material leading to a poor rate capability presents a significant challenge for practical application. Herein, we develop a series of Ca-doped NVPF/C cathode materials with various Ca2+ doping levels using a simple sol-gel and carbon thermal reduction approach. X-ray diffraction analysis confirmed that the inclusion of Ca2+ does not alter the crystal structure of the parent material but instead expands the lattice spacing. Density functional theory calculations depict that substituting Ca2+ ions at the V3+ site reduces the band gap, leading to increased electronic conductivity. This substitution also enhanced the structural stability, preventing lattice distortion during the charge/discharge cycles. Furthermore, the presence of the Ca2+ ion introduces two localized states within the band gap, resulting in enhanced electrochemical performance compared to that of Mg-doped NVPF/C. The optimal NVPF-Ca-0.05/C cathode exhibits superior specific capacities of 124 and 86 mAh g-1 at 0.1 and 10 C, respectively. Additionally, the NVPF-Ca-0.05/C demonstrates satisfactory capacity retention of 70% after 1000 charge/discharge cycles at 10 C. These remarkable results can be attributed to the optimized particle size, excellent structural stability, and enhanced ionic and electronic conductivity induced by the Ca doping. Our findings provide valuable insight into the development of cathode material with desirable electrochemical properties.

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  • Improved Structural, Electronic and Electrochemical properties of MoS2/Graphene Oxide Composite for Li-Ion Batteries Applications Reviewed International journal

    Niaz Ahmad Niaz, Abdul Shakoor, Fayyaz Hussain, Syed Mansoor Ali, Umar Mahmood, @Atsushi Inoishi, Rana Muhammad Arif Khalil, Duncan H. Gregory

    Journal of Materials Science: Materials in Electronics   ( 34 )   1942   2023.10

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  • Improved structural, electronic, and electrochemical properties of MoS<inf>2</inf>/graphene oxide composite for Li-ion batteries applications

    Niaz Ahmad Niaz, Abdul Shakoor, Fayyaz Hussain, Syed Mansoor Ali, Umar Mahmood, Atsushi Inoishi, Rana Muhammad Arif Khalil, Duncan H. Gregory

    Journal of Materials Science: Materials in Electronics   34 ( 28 )   2023.10   ISSN:0957-4522 eISSN:1573-482X

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    We describe a facile approach to fabricate MoS2 and graphene oxide (GO) composites using single-step hydrothermal method to achieve excellent electrochemical properties for energy storage applications, like lithium-ion batteries. Supportive 2D structure of MoS2 material provides direct path for the electron’s flow. MoS2 and graphene oxide (GO) composites provide large surface area for intercalation of ions into/out of active materials due to their layered morphology and also minimize the path for electron transfer. The morphology of samples is studied under XRD, SEM, and TEM. The investigation confirms the formation of composites and increment in crystallinity with doping of MoS2 on graphene oxide (GO) surface. Electrochemical properties are characterized by cyclic voltammogram (CV). As a result, composite MoS2 + GO with 3% weight ratio of graphene oxide (GO) gives best cyclic stability of 740 mAh/g at low current density 100 mA/g just after 160 cycles presenting excellent improvement in electrochemical performance as electrode material in lithium-ion batteries. The structural, electronic, and optical calculations of MoS2/graphene heterostructure have been performed using the density-functional theory. The MoS2/Graphene heterostructure reveals the zero band gap due to high electronic conductivity. The calculated absorption and optical conductivity find to be high in optical properties.

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  • Protective Behavior of Phosphonate-Functionalized Imidazolium Ionic Liquid and Its Impact on the Li-Ion Battery Performance Reviewed International journal

    Kaisi Liao, Jingbo Song, Jiawen Ge, Jia Si, Yinxiao Cai, Zijuan Luo, Mingjiong Zhou, Hongze Liang, Ya-Jun Cheng, @Atsushi Inoishi, @Shigeto Okada

    Energy materials   3 ( 5 )   2023.7   eISSN:2770-5900

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    DOI: 10.20517/energymater.2023.33

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  • Room-temperature Operation of All-solid-state Chloride-ion Battery with Perovskite-type CsSn0.95Mn0.05Cl3 as a Solid Electrolyte

    Ryo Sakamoto, Nobuaki Shirai, Liwei Zhao, Atsushi Inoishi, Hikari Sakaebe, Shigeto Okada

    ELECTROCHEMISTRY   91 ( 7 )   2023   ISSN:1344-3542 eISSN:2186-2451

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    Perovskite-type CsSnCl3 is an attractive candidate for use as a solid electrolyte in all-solid-state chloride-ion batteries because it exhibits high ionic conductivity. However, perovskite-type CsSnCl3 is metastable at room temperature and easily undergoes a phase transition to a stable phase. Here, we prepared perovskite-type CsSn0.95Mn0.05Cl3, in which the Sn2+ in CsSnCl3 is partly substituted with Mn2+, via a mechanical milling method. Differential scanning calorimetry showed that the perovskite-type CsSn0.95Mn0.05Cl3 is stable to -15 & DEG;C. Moreover, it exhibits a high chloride ionic conductivity of 2.0 x 10-4 S cm-1 at 25 & DEG;C. We demonstrated the room-temperature operation of an all-solid-state chloride-ion battery with a BiCl3 cathode, an Sn anode, and CsSn0.95Mn0.05Cl3 as the electrolyte. The first discharge capacity of the all-solid-state cell at room temperature was 169 mAh g-1 based on the weight of BiCl3. X-ray diffraction and X-ray photoelectron spectroscopic analyses confirmed that the reaction mechanism of the cell is derived from the redox reaction of BiCl3 and Sn.

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  • Development and evaluation of a new transfer vessel for soft X-ray absorption spectroscopy

    Kobayashi Eiichi, Inoishi Atsushi, Yoshioka Satoru, Okudaira Koji K

    Abstract book of Annual Meeting of the Japan Society of Vacuum and Surface Science   2023 ( 0 )   2P30   2023   eISSN:24348589

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    <p>Introduction<b></b></p><p>In recent years, analysis of light elements contained in materials such as batteries and catalysts has attracted attention. Soft X-ray absorption spectroscopy (XAS) is useful technique to analyze the light elements. In many cases of multi-element materials, however, it may not be possible to carry out XAS experiments for all the absorption edge in a beamline, since the coverage range of X-ray energy is limited in the beamline. It was difficult to keep samples across the beamline without atmospheric exposure. This is because the specifications of sample holders are different depending on the beamline. On the other hand, many materials such as batteries and catalysts are contaminated with oxygen, carbon dioxide and water when exposed to the atmosphere. Therefore, we developed a sample transfer vessel that can transport the sample from the glove box to the analyzer without exposing it to the atmosphere [1, 2]. Furthermore, in order to perform more precise analysis, we developed a sample transfer vessel with a small ion pump [3]. In this study, we have developed a transfer vessel that can measure the soft XAS across the beamline without exposing the sample to the atmosphere, based on the apparatus that we have developed.</p><p><b></b></p><p>Experimental</p><p>After heat treatment, the sample was attached to the transfer vessel in a glove box under an argon atmosphere and transported to the analyzer. Near edge X-ray absorption fine structure (NEXAFS) spectra of the sample using both total electron yield (TEY) and partial fluorescence yield (PFY) modes were measured at the beamline 2A of the UVSOR in the Institute of Molecular Science and at the beamline 12 of the SAGA-LS. For TEY, the drain current of the sample was measured. For PFY, fluorescence X-rays were collected using an energy dispersible silicon drift detector (SDD). All experiments were performed at room temperature.</p><p></p><p>Results and Discussion<b></b></p><p>Fig. 1 shows a photograph of the developed transfer vessel. This vessel consists of coaxial type linear motion feedthrough, vacuum vessel and sample holder. The sample is fixed to the holder using carbon tape. The sample current is measured using the Bayonet Neill-Concelman (BNC) connector on the upper part of the vessel. Since this vessel can be installed in a conflat flange with an outer diameter of 70 mm (ICF70), it can be connected if there is a free ICF70 port in the beamline or analyzer. We measured the Na K-edge NEXAFS spectra of NaCl powder obtained from TEY at SAGA-LS, and the Cl K-edge NEXAFS spectra at UVSOR. The Na K-edge NEXAFS spectrum is in good agreement with the theoretical calculation results reported by McIntrosh et al. [4], and the Cl K-edge NEXAFS spectrum is in good agreement with those of Orlando et al. [5]. From the above, we were able to measure two absorption edge energy spectra at the same point on the same sample without exposure to the atmosphere, using beamlines in different facilities. We also measured MgO using the same system, and obtained a spectrum without surface contamination. By using the new developed transfer vessel, the sample can be analyzed accurately with high precision.</p><p></p><p>References</p><p>[1] E. Kobayashi, J. Meikaku, T. Okajima, and H. Setoyama, Japanese Patent No. 5234994.</p><p>[2] E. Kobayashi, J. Meikaku, H. Setoyama, T. Okajima, J. Surf. Anal., <b>19</b>, 2 (2012).</p><p>[3] E. Kobayashi, S. Tanaka, T. Okajima. J. Vac. Soc. Jpn. <b>59</b>, 192 (2016).</p><p>[4] G. J. Mclntosh and A. Chan, Phys. Chem. Chem. Phys., <b>20</b>, 24033 (2018).</p><p>[5] F. Orlando et al., Top. Catal., <b>59</b>,<b> </b>591 (2016).</p>

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  • A Bicontinuous Nanostructure Induced in Lithiated Iron Fluoride Electrodes of Lithium-ion Batteries Investigated by Small-Angle X-ray Scattering Reviewed International journal

    #Hironobu HORI , Chikako ISHIKAWA, #Atsushi INOISHI, #Hikari SAKAEBE, #Shigeto OKADA

    Electrochemistry   90 ( 90 )   77007 - 077007   2022.6   ISSN:13443542 eISSN:21862451

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    <p>In a conversion-type electrode material of lithium-ion batteries, a phase separation phenomenon is induced by charge-discharge reaction. In this study, the spatial periodicity of phase-separated nanostructures induced in the discharged ferrous fluoride (FeF<sub>2</sub>) electrodes were investigated using the small-angle X-ray scattering (SAXS) method. The SAXS results of discharged FeF<sub>2</sub> resembled the scattering results of the bicontinuous structures via spinodal decomposition. Thus, the SAXS results showed that the discharged FeF<sub>2</sub> electrodes were modulated nanostructures with a spatial periodicity. SAXS measurements also showed that the size of the discharged FeF<sub>2</sub> nanostructures was dependent on the cycle number. These SAXS finding on the morphological evolution of the nanoscale structure of conversion electrodes should be useful to reveal the mechanism of conversion reactions.</p>

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  • Development of electrically conductive ZrO2-CaO-Fe2O3-V2O5 glass and glass-ceramics as a new cathode active material for Na-ion batteries with high performance Reviewed

    Irfan Khan, Bofan Zhang, Koken Matsuda, Paul A. Bingham, Ayuko Kitajou, Atsushi Inoishi, Shigeto Okada, Satoru Yoshioka, Tetsuaki Nishida, Zoltan Homonnay, Erno Kuzmann, Shiro Kubuki

    JOURNAL OF ALLOYS AND COMPOUNDS   899   2022.4   ISSN:0925-8388 eISSN:1873-4669

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    Glass-ceramics xZrO(2)center dot 10Fe(2)O(3)center dot(90-x)V2O5 with 'x' between 0 and 30 mol% and yZrO(2)center dot(20-y)CaO center dot 10Fe(2)O(3)center dot 70 V2O5 glass with 'y' between 0 and 20 mol%, respectively abbreviated as xZFV and yZCFV, before and after heat treatment at 500 degrees C for 100 min, were evaluated as potential cathode-active materials for sodium-ion batteries (SIBs). Relationships between physical properties and local structure of xZFV and yZCFV glass-ceramics were investigated by Fe-57-Mossbauer spectroscopy, V K-edge X-ray absorption near edge structure (XANES), X-ray diffractometry (XRD), DC four-probe method and differential thermal ana-lysis (DTA). SIBs containing heat-treated xZFV glass-ceramics showed the highest discharge capacity of 153 mA h g(-1) under a current density of 50 mA.g(-1), which exhibited a high electrical conductivity of 1.8 x 10(-2) Scm(-1). Precipitation of V0.05Zr0.95O2 and Fe2V4O13 nanoparticles were confirmed from the XRD pattern of the heat-treated 20ZFV glass, consistent with the lower energy of the pre-edge peak at 5467 eV in the V K-edge XANES spectrum. This result is associated with the reduction of vanadium ions from V-V to V-IV. It is concluded that the precipitation of stable vanadium bronze phases with high electrical conductivity and structural stability effectively enable the high SIB capacity of these materials. (C) 2021 Elsevier B.V. All rights reserved.

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  • High capacity all-solid-state lithium battery enabled by <i>in situ</i> formation of an ionic conduction path by lithiation of MgH<sub>2</sub>

    Atsushi Inoishi, Hiroki Sato, Yixin Chen, Hikaru Saito, Ryo Sakamoto, Hikari Sakaebe, Shigeto Okada

    RSC Advances   12 ( 17 )   10749 - 10754   2022.3   eISSN:2046-2069

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    MgH<sub>2</sub> electrode in an all-solid-state battery reversibly operated without solid electrolyte in the electrode mixture.

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  • Effect of Na<sub>3</sub>BO<sub>3</sub> Addition into Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> Single-Phase All-Solid-State Batteries (Vol. 89, No. 3, 244–249)

    NISHIO Akira, SHIRAI Nobuaki, MINAMI Hironari, IZUMI Hiroaki, INOISHI Atsushi, OKADA Shigeto

    Electrochemistry   90 ( 1 )   019001 - 019001   2022.1   ISSN:13443542 eISSN:21862451

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    DOI: 10.5796/electrochemistry.21-00116

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  • Development of electrically conductive ZrO2-CaO-Fe2O3-V2O5 glass and glass-ceramics as a new cathode active material for Na-ion batteries with high performance Reviewed International journal

    Irfan Khan, Bofan Zhang, Koken Matsuda, Ayuko Kitajou, Atsushi Inoishi, Shigeto Okada, Satoru Yoshioka, Tetsuaki Nishida, Shiro Kubuki

    Journal of Alloys and Compounds   889   163309   2021.12

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  • Thermal risk evaluation of concentrated electrolytes for Li-ion batteries Reviewed International journal

    Liwei Zhao, Atsushi Inoishi, Shigeto Okada

    Journal of Power Sources Advances   ( 12 )   100079   2021.11

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  • Characteristics of YCoO3-type Perovskite Oxide and Application as an SOFC Cathode Invited Reviewed International journal

    Takaaki Sakai, Masako Ogushi, Kohei Hosoi, @Atsushi Inoishi, Hidehisa Hagiwara, Shintaro Ida, @Tatsumi Ishihara

    Journal of Materials Chemistry A   2021.1

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    DOI: In press

  • A highly conductive Na3V2(PO4)3 ceramic sheet prepared by tape-casting method Reviewed International journal

    H. Wang, G. Hasegawa, Y. Akiyama, T. Yamamoto, A. Inoishi, H. Akamatsu, M. Inada, T. Ishihara, K. Hayashi

    Electrochimica Acta   2019.3

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    DOI: 10.1016/j.electacta.2019.03.057

  • Electrochemical Performance and Thermal Stability of Iron Oxyfluoride (FeOF) for Sodium-Ion Batteries Reviewed International journal

    ( 4 )   68   2018.11

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  • Pr2Ni0.71Cu0.24Ga0.05O4-Sm0.2Ce0.8O1.9 Composite Film as Active Cathodic Layer for Intermediate Temperature Solid Oxide Fuel Cells Reviewed International journal

    B. Kang, A. Inoishi, A. Takagaki, T. Ishihara

    Solid State Ionics   ( 327 )   59 - 63   2018.10

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  • Amorphous xLiF-FeSO4 (1 ≤ x ≤ 2) composites as a cathode material for lithium ion batteries Reviewed International journal

    326   48 - 51   2018.9

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  • Proton-Driven Intercalation and Ion Substitution Utilizing Solid-State Electrochemical Reaction Invited Reviewed International journal

    M. Fujioka, C. Wu, N. Kubo, G. Zhao, A. Inoishi, S. Okada, S. Demura, H. Sakata, M. Ishimaru, H. Kaiju, J. Nishii

    Journal of the American Chemical Society   in press   2017.11

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    DOI: 10.1021/jacs.7b09328

  • Evaluation of isotope diffusion coefficient and surface exchange coefficient of ScSZ series oxide by oxygen isotope exchange method Reviewed International journal

    T. Sakai, J. Hyodo, M. Ogushi, A. Inoishi, S. Ida, T. Ishihara

    Solid State Ionics   ( 301 )   156 - 162   2017.2

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  • Characteristics of Fe-air battery using Y2O3-stabilized-ZrO2 electrolyte with Ni-Fe electrode and Ba0.6La0.4CoO3-δ electrode operated at intermediate temperature Reviewed International journal

    7   115 - 120   2016.6

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  • Solid-oxide Fe–air rechargeable battery using Fe–Ce(Mn, Fe)O2 for low temperature operation Reviewed International journal

    4   5482 - 5488   2016.3

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  • Honeycomb-like perovskite oxide electrocatalyst for a hybrid Li-air battery Reviewed International journal

    Y. W. Ju, S. Yoo, L. Guo, C. Kim, A. Inoishi, H. Jeong, T. Ishihara, S. Yim, G. Kim

    Journal of TheElectrochemical Society   162   A2651 - A2655   2015.10

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  • Reversible Type Solid Oxide Fuel Cells Using Ni-Fe-CeO2 Based Cermet Fuel Electrode and Applied for Metal-Air Rechargeable Battery International journal

    T. Ishihara, A. Inoishi, H. Kim, S. Ida

    ECS Transaction   68   3279 - 3288   2015.7

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  • A Dense La(Sr)Fe(Mn)O3-δ Nano-film Anode for Intermediate-Temperature Solid Oxide Fuel Cells Reviewed International journal

    in press   2014.12

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  • Ce(Mn,Fe)O2 dense film deposited on LaGaO3 electrolyte for dense anode of solid oxide fuel cells Reviewed International journal

    Y. W. Ju, J. Hyodo, A. Inoishi, S. Ida, T. Ishihara

    International Journal of Hydrogen Energy   in press   2014.6

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  • Double Columnar Structure with Nano-gradient Composite for Increased Oxygen Diffusivity and Reduction Activity Reviewed International journal

    Y. W. Ju, J. Hyodo, A. Inoishi, S. Ida, T. Ishihara

    Advanced Energy Materials   in press   2014.6

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  • Reversible Solid State Fe-air Rechargeable Battery using LaGaO3 Based Oxide Ion Conducting Electrolyte International journal

    T. Ishihara, A. Inoishi, S. Ida

    Materials Science Forum   783-786   1680 - 1685   2014.4

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  • Growth of Thin-Film Layerd Perovskite Cathode by Pulsed Laser Deposition and their Electrochemical Studies in IT-SOFCs Reviewed International journal

    Y. W. Ju, A. Jun, A. Inoishi, S. Ida, T. H. Lim, G. Kim, T. Ishihara

    Journal of the Electrochemical Society   161(6)   F1 - F5   2014.4

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  • Ni–Fe bimetallic cathodes for intermediate temperature CO2 electrolyzers using a La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte Reviewed International journal

    1   12455 - 12461   2013.9

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  • Effects of Fuel Velocity in Anode Channel on Power Generation Property of Tubular Solid Oxide Fuel Cells using LaGaO3 Electrolyte Film Reviewed International journal

    N. Watanabe, A. Inoishi, T. Ooe, A. Kawakami, H. Shigefuji, T. Ishihara

    Electrochimica Acta   97   86 - 91   2013.2

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    DOI: 10.1016/j.electacta.2013.02.137

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Presentations

  • High capacity negative electrode by in-situ formed electrolytes for all-solid-state lithium batteries Invited International conference

    Atsushi Inoishi

    ICGET-Tw  2023.10 

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    Event date: 2024.5

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • XAFSを利用した革新電池の研究開発 Invited

    猪石篤

    日本XAFS研究会  2022.8 

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    Event date: 2024.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:鳥栖市   Country:Japan  

  • 全固体ハロゲン化物イオン移動型電池の開発 Invited

    猪石篤

    第30回バッテリー技術シンポジウム  2022.8 

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    Event date: 2024.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • 可塑性の違いが及ぼす全固体ハロゲン化物電池の特性への影響 Invited

    猪石篤、岡田重人、栄部比夏里

    第120回新電池構想部会  2023.9 

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    Event date: 2024.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  • NASICON単相型全固体電池の開発 Invited

    猪石 篤, 岡田 重人

    第101回新電池構想部会  2017.10 

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    Event date: 2017.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:関西大学   Country:Japan  

  • Li1.5Cr0.5Ti1.5(PO4)3単相型全固体リチウムイオン電池の低温動作特性

    猪石 篤, 吉岡勇登, 大牟田拓也, 小林栄次, 喜多條 鮎子, 岡田 重人

    電気化学会第84回大会  2017.3 

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    Event date: 2017.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • Na3V2(PO4)3への異元素添加による電気伝導度向上と単相型全固体電池特性への影響

    猪石 篤, 大牟田拓也, 小林栄次, 喜多條 鮎子, 岡田 重人

    電気化学会第83回大会  2016.3 

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    Event date: 2016.4

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:吹田市   Country:Japan  

  • 単相型酸化物系全固体Liイオン電池の高速充放電特性

    猪石 篤, 吉岡勇登, 大牟田拓也, 小林 栄次, 喜多條 鮎子, 岡田 重人

    第42回固体イオニクス討論会  2016.12 

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    Venue:名古屋   Country:Japan  

  • ナシコン単層全固体リチウムイオン電池及びナトリウムイオン電池の電気化学特性

    猪石 篤, 大牟田拓也, 小林栄次, 喜多條鮎子, 岡田 重人

    第41回固体イオニクス討論会 

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    Venue:札幌   Country:Japan  

  • All-Solid-State Sodium-Ion Battery with Nasicon Invited International conference

    Atsushi Inoishi, Eiji Kobayashi, Ayuko Kitajou, Shigeto Okada

    PRiME2016  2016.10 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  • ナシコン単層全固体ナトリウムイオン電池の電気化学特性

    猪石篤, 大牟田拓也, 小林栄次, 喜多條鮎子, 岡田重人

    第56回電池討論会  2015.11 

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    Event date: 2015.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋   Country:Japan  

  • バナジウムリン酸ポリアニオン正極の合成と電気化学特性

    津江 大介, 喜多條 鮎子, 猪石 篤, 岡田 重人, 日比野 真彦

    電気化学会第82回大会  2015.3 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • 電解質の湿式法による薄膜化とFe-空気電池への応用

    猪石篤, 細井浩平, 酒井 孝明, 伊田 進太郎, 石原 達己

    2014年電気化学秋季大会  2014.9 

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    Language:Japanese  

    Country:Japan  

  • YSZ 電解質を用いた新型鉄空気電池の低温動作化の検討

    酒井 孝明, 大串雅子, 猪石 篤, 伊田 進太郎, 石原 達己

    第40回固体イオニクス討論会  2014.11 

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    Country:Japan  

  • LaGaO3 系固体電解質を用いた水蒸気電解へのセリア系酸化物カソード特性

    細井浩平, 猪石 篤, 酒井 孝明, 伊田 進太郎, 石原 達己

    第40回固体イオニクス討論会  2014.11 

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    Language:Japanese  

    Country:Japan  

  • 酸化物燃料極を用いる可逆作動型SOFC

    細井 浩平, 猪石 篤, 酒井 孝明, 伊田 進太郎, 石原 達己

    第23回SOFC研究発表会  2014.12 

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    Language:Japanese  

    Country:Japan  

  • 酸化物イオン導電体を用いたFe空気電池の中低温域での動作特性

    酒井 孝明, 大串 雅子, 猪石 篤, 伊田 進太郎, 石原 達己

    第23回SOFC研究発表会  2014.12 

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    Country:Japan  

  • リチウム過剰不規則岩塩型正極のリチウムイオン二次電池特性

    喜多條 鮎子, 田中 康介, 三木 秀教, 古賀 英行, 趙 麗巍, 猪石 篤, 岡田 重人

    電気化学会第82回大会  2015.3 

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    Country:Japan  

  • ジルコニア型電解質を用いた新型鉄空気電池の低温動作化の検討

    酒井 孝明, 猪石 篤, 大串 雅子, 伊田 進太郎, 石原 達己

    第53回セラミックス基礎科学討論会  2015.1 

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    Language:Japanese  

    Country:Japan  

  • スカンジア安定化ジルコニア系酸化物の同位体酸素交換法による物性評価

    酒井 孝明, 兵頭 潤次, 大串 雅子, 猪石 篤, 伊田 進太郎, 石原 達己

    電気化学会第82回大会  2015.3 

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    Country:Japan  

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MISC

  • 単相型全固体電池実現に向けたリン酸系NASICON型電解質材料の開発

    猪石篤、岡田重人

    技術情報協会   2020.3

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  • NASICON型酸化物を用いた単相型全固体電池

    猪石篤、岡田重人

    全固体リチウム電池の開発動向と応用展望、シーエムシー出版   2019.6

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  • 次世代電池としての全固体リチウムイオン電池

    猪石篤

    化学と教育   2018.11

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  • 単一物質からなる酸化物系全固体電池

    猪石篤、岡田重人

    全固体電池の基礎理論と開発最前線、シーエムシー・リサーチ、pp.162-173   2018.7

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  • インターカレーションおよびイオン交換の新展開

    藤岡正弥、出村郷志、猪石篤

    セラミックス、日本セラミックス協会、Vol.53、pp.378-381   2018.6

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  • セラミックス一種類からなる全固体Liイオン電池

    猪石 篤, 岡田 重人

    セラミックス、日本セラミックス協会   2017.7

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    Language:Japanese  

  • 単相型リン酸塩系全固体Naイオン電池

    猪石 篤, 岡田 重人

    車載テクノロジー、技術情報協会   2017.6

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  • Local structure analysis of fluoride battery solid electrolyte using anomalous X-ray scattering and neutron total scattering

    高林康裕, 黍野景介, 山本美樹, 猪石篤, 木村耕治, 仲谷友孝, 藤波想, 森一広, 齊藤高志, 林好一

    電池討論会PDF要旨集(CD-ROM)   64th   2023

  • Redox reaction of acetylene black in fluoride-based solid-state electrolyte

    橋本啓佑, 栄部比夏里, 猪石篤, 岡田重人, ALBRECHT Ken

    電池討論会PDF要旨集(CD-ROM)   64th   2023

  • フッ化物イオン電池におけるCuF<sub>2</sub>複合正極材料の組織観察

    朱尚萍, 赤嶺大志, 猪石篤, 飯久保智

    日本金属学会講演大会(Web)   173rd   2023

  • Construction of high volumetric energy density hydride anode using TiH<sub>2</sub>

    CHEN Yixin, 猪石篤, 岡田重人, ALBRECHT Ken, 栄部比夏里

    電池討論会PDF要旨集(CD-ROM)   64th   2023

  • 軟X線吸収分光によるフッ化物電池の電極反応の分析

    猪石篤

    九州シンクロトロン光研究センター年報   2021   2023   ISSN:1881-3402

  • Room temperature operation of all-solid-state chloride battery using highly-conducting solid electrolyte

    猪石篤, ZHAO Liwei, 三木秀教, 栄部比夏里

    電池討論会PDF要旨集(CD-ROM)   64th   2023

  • Synchrotron X-ray structural analysis on FeF<sub>x</sub> positive electrode of fluoride shuttle battery

    山本美樹, 黍野景介, 吉川崇大, 高林康裕, 木村耕治, 仲谷友孝, 藤波想, 猪石篤, 鹿野昌弘, 栄部比夏里, 林好一

    電池討論会PDF要旨集(CD-ROM)   63rd   2022

  • Local Structure Analysis of Ba<sub>0.6</sub>La<sub>0.4</sub>F<sub>2.4</sub> Solid Electrolyte Using Anomalous X-ray Scattering and Extended X-ray Absorption Fine Structure Measurements

    黍野景介, 山本美樹, 吉川崇大, 高林康裕, 木村耕治, 藤波想, 仲谷友孝, 猪石篤, 鹿野昌弘, 栄部比夏里, 林好一

    電池討論会PDF要旨集(CD-ROM)   63rd   2022

  • Room Temperature All-Solid-State Chloride-Ion Batteries Using CsSnCl<sub>3</sub>-based Electrolyte

    猪石篤, 坂本遼, ZHAO Minyan, ALBRECHT Ken, 栄部比夏里, 岡田重人

    電気化学会大会講演要旨集(CD-ROM)   89th   2022

  • Development of All-Solid-State Bromide-Shuttle Batteries

    猪石篤

    スズキ財団年次報告書   2022   2022

  • Charge-discharge performance of solid electrolyte in-situ forming anode dependence on the electrode thickness

    CHEN Yixin, 坂本遼, 猪石篤, 岡田重人, ALBRECHT Ken, 栄部比夏里

    電池討論会PDF要旨集(CD-ROM)   63rd   2022

  • Large-capacity all-solid-state lithium battery using an in-situ formation of solid electrolyte from magnesium halide anode

    猪石篤, 陶山美幸, CHEN Yixin, 坂本遼, ALBRECHT Ken, 岡田重人, 栄部比夏里

    電池討論会PDF要旨集(CD-ROM)   63rd   2022

  • High capacity all-solid-state battery enabled by In Situ Formation of ionic conductor by lithiation of magnesium halide

    猪石篤, 陶山美幸, CHEN Yixin, 坂本遼, ALBRECHT Ken, 岡田重人, 栄部比夏里

    電気化学秋季大会講演要旨集(Web)   2022   2022

  • 固体酸化物イオン導電体と鉄を用いた新型空気二次電池

    酒井孝明、猪石篤

    電気化学   2018.12

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  • 新しい鉄-空気二次電池

    石原 達己, 猪石 篤

    リチウムに依存しない革新型二次電池、エヌ・ティー・エス   2013.4

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  • 可逆動作型固体電解質燃料電池を用いる鉄-空気二次電池

    石原 達己, 猪石 篤

    FINE CERAMICS REPORT, 日本ファインセラミックス協会   2013.1

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Professional Memberships

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Committee Memberships

  • 電池技術委員会   事務局長   Domestic

    2019.2 - 2021.2   

Academic Activities

  • Screening of academic papers

    Role(s): Peer review

    2024

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:1

  • Screening of academic papers

    Role(s): Peer review

    2023

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:13

  • 実行委員

    第63回電池討論会  ( 福岡市 ) 2022.11

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    Type:Competition, symposium, etc. 

  • Screening of academic papers

    Role(s): Peer review

    2022

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:3

  • Screening of academic papers

    Role(s): Peer review

    2021

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:8

  • 実行委員

    第61回電池討論会  ( オンライン ) 2020.11

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    Type:Competition, symposium, etc. 

  • 文部科学省科学技術・学術政策研究所 科学技術予測センター 専門調査員

    Role(s): Review, evaluation

    2020.4 - 2021.3

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    Type:Scientific advice/Review 

  • 「電池の新しい展開」シンポジウムオーガナイザー

    電気化学会第87回大会  2020.3

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    Type:Competition, symposium, etc. 

  • Screening of academic papers

    Role(s): Peer review

    2020

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:8

  • 実行委員

    第60回電池討論会  ( 国立京都国際会館 ) 2019.11

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    Type:Competition, symposium, etc. 

  • 「電池の新しい展開」 シンポジウムオーガナイザー

    2019年電気化学秋季大会  ( 山梨大学 ) 2019.9

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    Type:Competition, symposium, etc. 

  • Screening of academic papers

    Role(s): Peer review

    2019

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:6

  • 座長

    第59回電池討論会  ( 大阪 ) 2018.11

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    Type:Competition, symposium, etc. 

  • 座長

    電気化学会第85回大会  ( 東京 ) 2018.3

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    Type:Competition, symposium, etc. 

  • Screening of academic papers

    Role(s): Peer review

    2018

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:10

  • 実行委員

    第58回電池討論会  ( 福岡 ) 2017.11

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    第58回電池討論会  ( 福岡 ) 2017.11

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    Type:Competition, symposium, etc. 

  • Screening of academic papers

    Role(s): Peer review

    2017

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:7

  • 座長(Chairmanship)

    電気化学会第83回大会  ( 大阪 ) 2016.3

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    第56回電池討論会  ( 名古屋 ) 2015.11

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    Type:Competition, symposium, etc. 

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Research Projects

  • Development of new aluminium-ionic conductors

    Grant number:24K21690  2024.6 - 2026.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Research (Exploratory)

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    Grant type:Scientific research funding

    CiNii Research

  • 2023年度科学技術研究助成

    2024

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    Grant type:Donation

  • 電極反応解析に関する研究

    2023.12 - 2024.3

    共同研究

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    Authorship:Principal investigator  Grant type:Other funds from industry-academia collaboration

  • 新規電池材料の研究開発

    2022.4 - 2025.3

    共同研究

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    Authorship:Principal investigator  Grant type:Other funds from industry-academia collaboration

  • Study on mechanism of the high-rate capability of electrode which forms electrolyte during electrochemical reaction.

    Grant number:22H04621  2022 - 2023

    Japan Society for the Promotion of Science・Ministry of Education, Culture, Sports, Science and Technology  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research on Innovative Areas

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    Authorship:Principal investigator  Grant type:Scientific research funding

    CiNii Research

  • 2021年度(令和3年度)科学技術研究助成

    2022

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    Grant type:Donation

  • 令和4年度若手研究者研究助成

    2022

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    Grant type:Donation

  • 電極抵抗解析に関する研究

    2021.6 - 2025.3

    共同研究

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    Authorship:Principal investigator  Grant type:Other funds from industry-academia collaboration

  • NEDO電気自動車用革新型蓄電池開発

    2021.4 - 2026.3

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    Authorship:Coinvestigator(s) 

  • 新規リチウムイオン伝導体の研究

    2021.4 - 2025.3

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    Authorship:Principal investigator  Grant type:Other funds from industry-academia collaboration

  • フッ化物電池の研究開発

    2021 - 2025

    NEDO電気自動車用革新型蓄電池開発

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    Authorship:Principal investigator  Grant type:Contract research

  • イオン伝導経路を電気化学的に形成する全固体電池用電極材料の探索

    2021 - 2023

    日本学術振興会  科学研究費助成事業  基盤研究(C)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • イオン伝導経路を電気化学的に形成する全固体電池用電極材料の探索

    Grant number:21K05243  2021 - 2023

    日本学術振興会  科学研究費助成事業  基盤研究(C)

    猪石 篤

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    Authorship:Principal investigator  Grant type:Scientific research funding

    申請者は、全固体電池中で水素化物材料にリチウムイオンを挿入すると、放電生成物が「自己生成型固体電解質」として機能し、予め電極合材中に固体電解質を含有しなくても充放電反応が進行することを見出した。しかし、なぜこのような反応が進行するのかは明確になっておらず、本研究では水素化物以外の材料系について、「自己生成型固体電解質」により充放電が進行する活物質を探索しそれらを比較することで、生成物のリチウムイオン導電性、金属の電子導電性、粒子径、ヤング率、界面の緻密性が電池特性に及ぼす影響を明確にする。

    CiNii Research

  • 令和2年度若手技術研究助成 全固体型臭化物シャトル電池の創製

    2021

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    Grant type:Donation

  • 酸化物全固体電池に関する研究

    2020.5 - 2020.12

    共同研究

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    Authorship:Principal investigator  Grant type:Other funds from industry-academia collaboration

  • 新学術領域(蓄電固体界面科学)

    2020.4 - 2024.3

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    Authorship:Principal investigator 

  • Application of curved nanocarbon to active material for secondary batteries

    Grant number:20H00400  2020 - 2023

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

    Okada Shigeto

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

    As a post-Li ion battery, we focused on rare metal-free Na ion batteries and found that Sumanentrione, a curved polycyclic aromatic hydrocarbon with lower specific gravity and larger interlayer distance than conventional inorganic materials, can function as an inexpensive water-based Na ion battery cathode as an electrode active material that functions as a host for Na whose ion volume is twice as large as that of Li. We also found that s-tetrazine can also function as a cathode for Na-ion batteries, and confirmed that not only C=O double bonds but also N=N double bonds can function as the active center of organic cathodes. In addition, to solve the problems of low electromotive force and elution into the electrolyte inherent in organic systems, an all-solid-state fluoride ion battery using coronene as a p-type host was demonstrated in operation.

    CiNii Research

  • 電気化学的に生成する電極と固体電解質の間の界面抵抗に関する研究

    Grant number:20H05297  2020 - 2021

    日本学術振興会・文部科学省  科学研究費助成事業  新学術領域研究(研究領域提案型)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 電気化学的に生成する電極と固体電解質の間の界面抵抗に関する研究

    Grant number:20H05297  2020 - 2021

    日本学術振興会・文部科学省  科学研究費助成事業  新学術領域研究

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 固体電池で発現するポリアニオン系正極材料の高電位レドックスに関する研究

    Grant number:19K15313  2019 - 2020

    日本学術振興会  科学研究費助成事業  若手研究

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 第8回新化学技術研究奨励賞 全固体電池を用いた高電位正極材料の開発

    2019

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    Grant type:Donation

  • NEDO革新型蓄電池実用化促進基盤技術開発 ナノ界面制御電池(ハロゲン化物)

    2018.9 - 2021.3

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    Authorship:Coinvestigator(s) 

  • 単相型全固体電池の研究開発

    2018.4 - 2021.3

    共同研究

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    Authorship:Principal investigator  Grant type:Other funds from industry-academia collaboration

  • フッ化物イオン伝導型全固体電池用電極材料の開発

    2018 - 2020

    NEDO革新型蓄電池実用化促進基盤技術開発

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    Authorship:Principal investigator  Grant type:Contract research

  • 全固体電池を利用した革新的熱電変換デバイスの創製

    2018

    QRプログラム

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    Authorship:Principal investigator  Grant type:On-campus funds, funds, etc.

  • 平成28年度科学技術研究助成 Naイオン電池用Na3V2(PO4)3系正極のドーパント制御によるV4+/V5+レドックス発現の機構解明と高エネルギー密度化

    2017

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    Grant type:Donation

  • 平成28年度研究助成 高速充放電を目指したNa3V2(PO4)3ベース単相型全固体ナトリウムイオン電池の開発

    2016

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    Grant type:Donation

  • 界面抵抗フリーを目指した電極電解質一体型全固体リチウムイオン電池の創製

    2016

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    Grant type:Donation

  • 電極電解質一体型全固体電池のためのNASICON型高Liイオン伝導性材料の創製

    2016

    エネルギー研究教育機構 若手研究者支援プログラム

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    Authorship:Principal investigator  Grant type:On-campus funds, funds, etc.

  • 全固体Na―空気電池の開発

    Grant number:15K17923  2015 - 2016

    科学研究費助成事業  若手研究(B)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 低温作動型リバーシブル固体酸化物型燃料電池のための高活性空気極の開発

    2013

    平成25年度 工学研究院若手研究者育成研究助成

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    Authorship:Principal investigator  Grant type:On-campus funds, funds, etc.

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Class subject

  • 材料電気化学 de

    2024.10 - 2025.3   Second semester

  • 総合理工学修士演習

    2023.4 - 2024.3   Full year

  • 総合理工学修士実験

    2023.4 - 2024.3   Full year

  • 材料機器分析学

    2023.4 - 2023.9   First semester

  • 総合理工学修士実験

    2022.4 - 2023.3   Full year

  • 総合理工学修士演習

    2022.4 - 2023.3   Full year

  • 材料機器分析学

    2022.4 - 2022.9   First semester

  • 総合理工学修士実験

    2021.4 - 2022.3   Full year

  • 総合理工学修士演習

    2021.4 - 2022.3   Full year

  • 材料機器分析学

    2021.4 - 2021.9   First semester

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Media Coverage

  • 「次世代の先導者」欄にて、これまでの研究経緯、全固体電池開発の経緯等について詳細に紹介された Newspaper, magazine

    日経産業新聞 2017年4月27日 日刊  2017.4

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    「次世代の先導者」欄にて、これまでの研究経緯、全固体電池開発の経緯等について詳細に紹介された

  • リチウムイオン電池、零下40度でもOK 九大、固体材料使い開発 Newspaper, magazine

    日本経済新聞 2017年4月17日朝刊  2017.4

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    リチウムイオン電池、零下40度でもOK 九大、固体材料使い開発

  • ポストリチウムイオン電池、急加速 Newspaper, magazine

    日経エレクトロニクス 2017年2月号  2017.2

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    ポストリチウムイオン電池、急加速

  • 九大、新型リチウムイオン電池 安全性高め低コスト Newspaper, magazine

    日本経済新聞 2016年12月17日夕刊1面  2016.12

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    九大、新型リチウムイオン電池 安全性高め低コスト

Travel Abroad

  • 2023.6 - 2023.7

    Staying countory name 1:Germany   Staying institution name 1:Helmholz Institute Ulm

  • 2023.2 - 2023.5

    Staying countory name 1:United Kingdom   Staying institution name 1:University of Glasgow

  • 2022.11 - 2022.12

    Staying countory name 1:Taiwan, Province of China   Staying institution name 1:National Yang Ming Chiao Tung University