Journal Paper

• Rui Liu, Atsunori Ikezawa, Moritz Borkenhagen, Takeyoshi Okajima, Daniel Schröder, Hajime Arai. Highly active LMO/Ni(Fe)-LDH bifunctional gas-diffusion electrode with bilayer design, Journal of Power Sources, Vol. 652, June 2025.  Official location  
• Kota Nakahara, Atsunori Ikezawa, Junichi Inamoto, Takeyoshi Okajima, Hajime Arai. How Do Pore Sizes Affect the Oxygen Reduction Reaction Kinetics of Platinum Electrodes?, Journal of Materials Chemistry A, Vol. 13, pp. 18338 - 18347, Apr. 2025.  Official location  

International Conference (Reviewed)

• Ryohei Kosasa, Atsunori Ikezawa, Hiroshi Suyama, Tomoya Matsunaga, Toshihiko Inoue, Takeyoshi Okajima, Hajime Arai. Elucidation of Charge and Discharge Mechanism of Modified Layered Hydrated Manganese Dioxide Positive Electrode Using Operando Measurements, 248th ECS Meeting, Oct. 2025.
• Yusuke Suzuki, Haruki Kaneda, Yuki Furuichi, Hiromasa Toya, Takeyoshi Okajima, Atsunori Ikezawa, Hajime Arai. A Comparative Investigation of Single- and Poly-Crystalline Positive Electrode Particles in All-Solid-State Batteries Using Three-Electrode Cells, 248th ECS Meeting, Oct. 2025.
• Kotaro Yoshida, Takeyoshi Okajima, Hajime Arai, Atsunori Ikezawa, Janis. K. Eckhardt, Sascha Kremer, Felix Schug, René Rekers Leonardo Merola, Jürgen Janek. Investigation of the Current Constriction Effect at the Interfaces between Sulfide Solid Electrolytes, 76th Annual Meeting of the International Society of Electrochemistry, Sept. 2025.
• Atsunori Ikezawa, Shinji Koito, Kota Nakahara, Junichi Inamoto, Takeyoshi Okajima, Hajime Arai. Development of Oxygen Electrocatalysts for Zinc-Air Secondary Batteries Using Model Electrodes, 4th International Zinc and other Aqueous Batteries Workshop, Sept. 2025.
• Nanako Nonaka, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. Local potential Indicators for Bifunctional Air Electrodes, 4th International Zinc and other Aqueous Batteries Workshop, Sept. 2025.
• Liu Rui, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. Bifunctional LMO/Ni(Fe)-LDH gas-diffusion electrode with bilayer design for rechargeable zinc–air battery, 4th International Zinc and other Aqueous Batteries Workshop, Sept. 2025.
• Ryohei Kosasa, Atsunori Ikezawa, Hiroshi Suyama, Tomoya Matsunaga, Toshihiko Inoue, Takeyoshi Okajima, Hajime Arai. Analysis of charge-discharge mechanism of layered hydrated manganese dioxide positive electrode in alkaline electrolyte, 4th International Zinc and other Aqueous Batteries Workshop, Sept. 2025.

Domestic Conference (Reviewed)

• TAKEYOSHI OKAJIMA, Atsunori Ikezawa, Hiroshi Ito, Naoya Ishida, Jun Shiroma, Koji Kawamoto, Hajime Arai. 硫化物系全固体電池における電極材料評価用対極の開発, 2025電気化学会秋季大会, Sept. 2025.
• Ryohei Kosasa, Atsunori Ikezawa, Hiroshi Suyama, Tomoya Matsunaga, Toshihiko Inoue, TAKEYOSHI OKAJIMA, Hajime Arai. アルカリマンガン電池正極の充放電メカニズム評価, 第43回 夏の学校 電気化学会関東支部, Sept. 2025.
• Kotaro Yoshida, Takeyoshi Okajima, Hajime Arai, Atsunori Ikezawa, Janis. K. Eckhardt, Sascha Kremer, Felix Schug, René Rekers Leonardo Merola, Jürgen Janek. Investigation of the Current Constriction Effect at the Interfaces between Sulfide Solid Electrolytes, 第19回 固体イオニクスセミナー, Aug. 2025.
• Nanako Nonaka, Atsunori Ikezawa, TAKEYOSHI OKAJIMA, Hajime Arai. Cu, Ag, Niを電位指示物質に用いた二機能性空気極内局所状態の光学観察, 電気化学会第92回大会, Mar. 2025.
• Ryohei Kosasa, Atsunori Ikezawa, Hiroshi Suyama, Tomoya Matsunaga, Toshihiko Inoue, TAKEYOSHI OKAJIMA, Hajime Arai. Operando Mn–およびBi–XAFSによる水和二酸化マンガン正極の充放電メカニズム解析, 電気化学会第92回大会, Mar. 2025.

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