【IMPORTANT】T2R2 and STAR Search: Service Discontinuation and Successor Systems

Journal Paper

• Masataka Mashino, Atsunori Ikezawa,  Takeshi Shimomura,  Yuki Orikasa,  Yasuhiro Inada,  Takeyoshi Okajima,  Hajime Arai. In-plane reaction inhomogeneity in lithium-ion battery full cells analyzed by X-ray absorption spectroscopy and ion chromatography, ELECTROCHEMISTRY, Vol. 94, No. 7, Page 077003, July 2026.  Official location  
• Liu Rui, Takeyoshi Okajima, Hajime Arai. Durability of Bilayer Bifunctional Air Electrodes Analyzed by Impedance Spectroscopy, Electrochemistry, Vol. 94, Issue 5, Page 052009, May 2026.  Official location  
• Hajime ARAI, Takeshi ABE, Jürgen GARCHE. Preface for the 73rd Special Feature “Progress in Aqueous Battery Research”, Electrochemistry, Volume 94, Issue 5, Page 052001, May 2026.  Official location  
• Kota Nakahara, Atsunori Ikezawa, Takeyoshi OKAJIMA, Hajime Arai. Micro- and Mesopore Size-Dependent Alcohol Electrooxidation Kinetics on Porous Platinum Electrode, Journal of The Electrochemical Society, Volume 173, No. 10, Page 104503, May 2026.  Official location  
• Nanako Nonaka, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. Local Potential Indicators for Alkaline Oxygen Electrodes, Electrochemistry, Volume 94, Issue 5, Page 052004, May 2026.  Official location  

International Conference (Reviewed)

• Hajime Arai. Modern Analysis for Aqueous Batteries, 249th ECS Meeting, May 2026.
• Hiroshi Suyama, Shigeki Sato, Makio Kon, Tomoya Matsunaga, Toshihiko Inoue, Atsunori Ikezawa, hajime arai. Proton Batteries Using Anti-Freezing Highly Concentrated K4P2O7 Aqueous Electrolytes, 249th ECS Meeting, May 2026.
• Hajime Arai, Atsunori Ikezawa, Takeyoshi Okajima. Electrode materials synthesized by soft chemistry, Asian Conference on Electrochemical Power Sources-13 (ACEPS13), Jan. 2026.

Domestic Conference (Reviewed)

• Hajime Arai. オペランド中性子回折を用いたリチウムイオン電池劣化解析, 令和８年度中性子産業利用報告会, July 2026.
• Hajime Arai. 電池反応における「かたち」の効果, 電気化学会第93回大会, Mar. 2026.
• Hiroshi Suyama, 近 真紀雄, Shigeki Sato, Tomoya Matsunaga, Toshihiko Inoue, Atsunori Ikezawa, Hajime Arai. 高濃度K4P2O7水溶液を用いた新奇水系電池の研究, 日本化学会 第106春季年会（2026）, Mar. 2026.
• 青木創汰, 平田 海斗, 高林 康裕, 林 好一, Atsunori Ikezawa, Hajime Arai, 高橋 康史. 亜鉛二次電池負極における結晶方位に依存した析出挙動のオペランドイメージング, 電気化学会第93回大会, Mar. 2026.
• 加藤 優太, Haruhisa Nakata, TAKEYOSHI OKAJIMA, Hajime Arai, Takashi Yanagishita, Atsunori Ikezawa. γ-Ni0.6Fe0.4OOHの酸素発生反応活性に対するCo置換の影響, 電気化学会第93回大会, Mar. 2026.
• Yusuke Suzuki, Haruki Kaneda, Yuki Furuichi, Takashi Hirose, TAKEYOSHI OKAJIMA, Atsunori Ikezawa, Hajime Arai. 単結晶・多結晶電極活物質の全固体電池でのサイクル特性, 電気化学会第93回大会, Mar. 2026.
• HUIJIE ZHANG, Atsunori Ikezawa, Takashi Hirose, TAKEYOSHI OKAJIMA, Hajime Arai. Enhancing Proton Battery Efficiency Through Electrode and Electrolyte Modification, 電気化学会第93回大会, Mar. 2026.
• Hajime Arai. 水系電池の特性－その解析と改善, 電気化学会第93回大会, Mar. 2026.

Patent

• Hajime Arai, Atsunori Ikezawa. 二次電池. Patent. Registered. 国立大学法人東京科学大学, トヨタ自動車株式会社. 2022/03/10. 特願2022-037515. 2023/09/22. 特開2023-132287. 特許第7798618号. 2026/01/05 2026.

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