奥村豊旗 (Toyoki Okumura) - マイポータル

基本情報

所属: 国立研究開発法人産業技術総合研究所エネルギー・環境領域電池技術研究部門研究グループ長

連絡先: advecd-mlaist.go.jp
ORCID iD: https://orcid.org/0000-0003-0752-0941
J-GLOBAL ID: 202301017244250520
researchmap会員ID: R000056034

外部リンク: https://unit.aist.go.jp/riecen/gae/index.html

研究分野

ナノテク・材料 / 無機物質、無機材料化学 / 固体電気化学、酸化物、全固体電池

論文

Perfluorosulfonylamide Binary Molten Salt with a Low Melting Point for Li-Ion Battery Electrolytes

Yuta Ito, Keigo Kubota, Yuta Maeyoshi, Toyoki Okumura, Kazuki Yoshii

The Journal of Physical Chemistry C 2025年5月29日
Visualization of Local Strain Distributions in All‐Solid‐State Batteries with Silicon Negative Electrodes Using Digital Image Correlation for Operando/In situ Microscopy Images

Misae Otoyama, Nao Terasaki, Tomonari Takeuchi, Toyoki Okumura, Kentaro Kuratani

ChemElectroChem 2025年4月14日
Concerted Influence of H2O and CO2: Moisture Exposure of Sulfide Solid Electrolyte Li4SnS4

Yusuke Morino, Misae Otoyama, Toyoki Okumura, Kentaro Kuratani, Naoya Shibata, Daisuke Ito, Hikaru Sano

ACS Omega 2024年9月17日
Elucidating the Reductive Decomposition Mechanism in Sulfide Solid Electrolyte Li4SnS4

Yusuke Morino, Misae Otoyama, Toyoki Okumura, Kentaro Kuratani, Seiji Takemoto, Daisuke Ito, Hikaru Sano

ACS Applied Materials & Interfaces 2024年4月23日
Protracted Relaxation Dynamics of Lithium Heterogeneity in Solid-State Battery Electrodes

Su Huang, Yuta Kimura, Takashi Nakamura, Nozomu Ishiguro, Oki Sekizawa, Kiyofumi Nitta, Tomoya Uruga, Tomonari Takeuchi, Toyoki Okumura, Mizuki Tada …

The Journal of Physical Chemistry C 2024年4月18日
Influence of Traces of Moisture on a Sulfide Solid Electrolyte Li₄SnS₄

Yusuke MORINO, Misae OTOYAMA, Toyoki OKUMURA, Kentaro KURATANI, Naoya SHIBATA, Daisuke ITO, Hikaru SANO

Electrochemistry 2024年
5D Analysis of Capacity Degradation in Battery Electrodes Enabled by Operando CT‐XANES

Yuta Kimura, Su Huang, Takashi Nakamura, Nozomu Ishiguro, Oki Sekizawa, Kiyofumi Nitta, Tomoya Uruga, Tomonari Takeuchi, Toyoki Okumura, Mizuki Tada …

Small Methods 2023年10月
Fabrication of Oxide-Based All-Solid-State Batteries by a Sintering Process Based on Function Sharing of Solid Electrolytes

Miyuki Sakakura, Kazutaka Mitsuishi, Toyoki Okumura, Norikazu Ishigaki, Yasutoshi Iriyama

ACS Applied Materials & Interfaces 2022年11月2日
Extending the Frontiers of Lithium-Ion Conducting Oxides: Development of Multicomponent Materials with γ-Li3PO4-Type Structures

Guowei Zhao, Kota Suzuki, Toyoki Okumura, Tomonari Takeuchi, Masaaki Hirayama, Ryoji Kanno

Chemistry of Materials 2022年5月10日
All-Solid-State Batteries with LiCoO2-Type Electrodes: Realization of an Impurity-Free Interface by Utilizing a Cosinterable Li3.5Ge0.5V0.5O4 Electrolyte

Toyoki Okumura, Tomonari Takeuchi, Hironori Kobayashi

ACS Applied Energy Materials 4(1) 30-34 2021年1月25日
Zr- and Ce-doped Li6Y(BO3)3 electrolyte for all-solid-state lithium-ion battery

Toyoki Okumura, Yoshitaka Shiba, Noriko Sakamoto, Takeshi Kobayashi, Saori Hashimoto, Kentaro Doguchi, Harunobu Ogaki, Tomonari Takeuchi, Hironori Kobayashi

RSC Advances 2021年
Influence of Active Material Loading on Electrochemical Reactions in Composite Solid-State Battery Electrodes Revealed by Operando 3D CT-XANES Imaging

Yuta Kimura, Mahunnop Fakkao, Takashi Nakamura, Toyoki Okumura, Nozomu Ishiguro, Oki Sekizawa, Kiyofumi Nitta, Tomoya Uruga, Mizuki Tada, Yoshiharu Uchimoto …

ACS Applied Energy Materials 3(8) 7782-7793 2020年8月24日
3D Operando Imaging and Quantification of Inhomogeneous Electrochemical Reactions in Composite Battery Electrodes

Yuta Kimura, Aina Tomura, Mahunnop Fakkao, Takashi Nakamura, Nozomu Ishiguro, Oki Sekizawa, Kiyofumi Nitta, Tomoya Uruga, Toyoki Okumura, Mizuki Tada …

The Journal of Physical Chemistry Letters 11(9) 3629-3636 2020年5月7日
LISICON-Based Amorphous Oxide for Bulk-Type All-Solid-State Lithium-Ion Battery

Toyoki Okumura, Sou Taminato, Yoshinobu Miyazaki, Michinori Kitamura, Tomohiro Saito, Tomonari Takeuchi, Hironori Kobayashi

ACS Applied Energy Materials 3(4) 3220-3229 2020年4月27日
Massive red shift of Ce3+ in Y3Al5O12 incorporating super-high content of Ce

Hitomi Nakamura, Kenji Shinozaki, Toyoki Okumura, Katsuhiro Nomura, Tomoko Akai

RSC Advances 2020年
Degradation Mechanism of Conversion-Type Iron Trifluoride: Toward Improvement of Cycle Performance

Hiroshi Senoh, Keitaro Matsui, Masahiro Shikano, Toyoki Okumura, Hisao Kiuchi, Keiji Shimoda, Keisuke Yamanaka, Toshiaki Ohta, Toshiharu Fukunaga, Hikari Sakaebe …

ACS Applied Materials & Interfaces 11(34) 30959-30967 2019年8月28日
Minimizing the Grain Boundary Resistance of Li-Ion-Conducting Oxide Electrolyte by Controlling Liquid-Phase Formation During Sintering

Toyoki Okumura, Sou Taminato, Tomonari Takeuchi, Hironori Kobayashi

ACS Applied Energy Materials 1(11) 6303-6311 2018年11月26日
Fabrication and charge-discharge reaction of all solid-state lithium battery using Li4-2Ge1-S O4 electrolyte

Sou Taminato, Toyoki Okumura, Tomonari Takeuchi, Hironori Kobayashi

Solid State Ionics 326 52-57 2018年11月
Sodium intercalation in the phosphosulfate cathode NaFe2(PO4)(SO4)2

Hamdi Ben Yahia, Rachid Essehli, Ruhul Amin, Khalid Boulahya, Toyoki Okumura, Ilias Belharouak

Journal of Power Sources 382 144-151 2018年4月
Visualization of the reaction distribution in a composite cathode for an all-solid-state lithium-ion battery

Fakkao, M., Chiba, K., Kimura, Y., Nakamura, T., Okumura, T., Nitta, K., Terada, Y., Uchimoto, Y., Amezawa, K.

Journal of the Ceramic Society of Japan 125(4) 2017年

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