Journal Paper

• Hajime Arai, Atsunori Ikezawa, Jean-Francois Drillet. Batteries – Battery Types – Zinc Batteries | Zinc–Air, Encyclopedia of Electrochemical Power Sources (Second Edition), Elsevier, Vol. 3, pp. 851-864, Jan. 2025.  Official location  
• J. Y. Huot, Atsunori Ikezawa, Hajime Arai. Chemistry and Electrochemistry | Zinc, Encyclopedia of Electrochemical Power Sources (Second Edition), Elsevier, Vol. 1, pp. 852-863, Jan. 2025.  Official location  
• Hajime Arai, Atsunori Ikezawa. Electrochemical Devices | Metal-Air Batteries, Encyclopedia of Electrochemical Power Sources (Second Edition), Elsevier, Vol. 1, pp. 292-300, Jan. 2025.  Official location  
• Hajime Arai, Atsunori Ikezawa. Lithium Batteries – Lithium Secondary Batteries – Li-ion Battery | Positive Electrode: Lithium Cobalt Oxide, Encyclopedia of Electrochemical Power Sources (Second Edition), Elsevier, Vol. 4, pp. 218-225, Jan. 2025.  Official location  
• Davide Cavaliere, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. Reduced artifacts in dynamic electrochemical impedance spectroscopy applied to battery degradation analysis, Journal of Power Sourcs, Elsevier, Vol. 621, pp. 235316, Nov. 2024.  Official location  
• Atsunori Ikezawa, Shinji Koito, Hajime Arai. Superior Oxygen Evolution Reaction Activities of Highly Crystalline Ni1-xFex-LDH (0.20 ≤ x ≤ 0.51) Synthesized Using Soft Chemistry, Journal of Material Chmistry A, Royal Society of Chemistry, Oct. 2024.  Official location  
• Kento Imai, Atsunori Ikezawa, Shigeki Sato, Hajime Arai. Soft chemistry-derived Al-substituted hydrated nickel hydroxide electrodes for rechargeable aqueous batteries, Chemical Communications, Issue 60, pp. 10192-10195, Aug. 2024.  Official location  
• Haruki Kaneda, Yuki Furuichi, Tomohiro Yoshida, Atsunori Ikezawa, Hajime Arai. Effect of Cobalt Substitution on the Activation of the LiNiO2 Discharge Reaction, Inorganic Chemistry, American Chemical Society, Vol. 63, Issue 36, pp. 16750−16767, Aug. 2024.  Official location  
• Wooseok KANG, Shumpei KUBOTA, Manabu KODAMA, Atsunori IKEZAWA, Hajime ARAI, Shuichiro HIRAI. Operando X-Ray Imaging of the Charge-Discharge Behavior of Zinc-Air Batteries, Electrochemistry, The Electrochemical Society of Japan, Volume 92, Issue 8, Page 087003, July 2024.
• Shumpei Kubota, Wooseok Kang, Manabu Kodama, Atsunori Ikezawa, Hajime Arai, Shuichiro hirai. Operando x-ray imaging of zinc-air flow battery anode, Transactions of the JSME, The Japan Society of Mechanical Engineers, Vol. 90, No. 935, Page 24-00098, July 2024.
• Mitsuhiro KISHIMI, Masahito MORITA, Tatsumi HIRANO, Hisao KIUCHI, Kentaro KAJIWARA, Tomoya KAWAGUCHI, Akiyoshi NAKATA, Hajime ARAI, Eiichiro MATSUBARA, Zempachi OGUMI, Masayuki MORITA, Takeshi ABE. Analytical Observation of Cathodic Zinc Deposition in High-Capacity Zinc Oxide Electrodes for Rechargeable Zinc-based Batteries: Influence of the current rate in the first charging, Electrochemistry, Vol. 95, Issue 5, pp. 057001_1-7, May 2024.  Official location  
• Kotaro Yoshida, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. An all-solid-state electrochemical four-electrode cell–Application to Li-ion transport between two sulfide solid electrolytes, Electrochimica Acta, Elsevier, Vol. 497, pp. 144523, May 2024.  Official location  
• Davide Cavaliere, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. Diagnosis of Li-ion battery degradation based on resistive and diffusion-related transient voltage changes at early stage of discharge, Journal of Power Sources, Elsevier, Vol. 603, pp. 234441, Apr. 2024.  Official location  
• Tetsuya Omiya, Atsunori Ikezawa, Keita Takahashi, Keiichi Saito, Masao Yonemura, Takashi Saito, Takashi Kamiyama, Hajime Arai. Combination of float charging and occasional discharging to cause serious LIB degradation analyzed by operando neutron diffraction, Energy Advances, The Royal Society of Chemistry, Vol. 3, Page 529–542, Feb. 2024.  Official location  
• Atsunori Ikezawa, Juri Kida, Kohei Miyazaki, Hajime Arai. Quantitative DEMS analysis of CO2 evolution reactions in alkaline electrolyte solutions, Electrochemistry Communications, Elsevier, Vol. 159, Page 107647, Feb. 2024.  Official location  
• Chihiro Yamamoto, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. Phase Transition Kinetics of LiFePO4 Biphasic Systems in Aqueous and Non-aqueous Electrolytes, Electrochemistry, Vol. 92, Issue 2, Page 027001, Feb. 2024.  Official location  
• Kota Nakahara, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. Enhanced Oxygen Reduction Activity of Platinum Micropore, ChemElectroChem, Chemistry Europe, Vol. 11, No. 11, Page e202300654, Jan. 2024.  Official location  
• Hiroshi Suyama, Shigeki Sato, Tomoya Matsunaga, Toshihiko Inoue, Atsunori Ikezawa, Hajime Arai. Anticrystallization and Superionic Conduction of Highly Concentrated Potassium Pyrophosphate Aqueous Electrolytes, ACS Applied Energy Materials, American Chemical Society, Vol. 6, Issue 23, pp. 11897-11905, Nov. 2023.  Official location  
• Goro Fukunishi, Atsunori Ikezawa, Takeyoshi Okajima, Fusao Kitamura, Kota Suzuki, Masaaki Hirayama, Ryoji Kanno, Hajime Arai. Impedance analysis and cyclability evaluation of graphite composite electrodes with all-solid-state three-electrode cells, ACS Applied Energy Materials, American Chemical Society, Vol. 6, Issue 21, pp. 10908-10917, Oct. 2023.  Official location  
• Jinya Suzuki, Hiroyasu Okochi, Naoki Matsui, Teppei Nagase, Haruki Tochizawa, Hiroki Sahara, Takumi Nishikubo, Yuki Sakai, Takuya Ohmi, Zhao Pan, Takashi Saito, Hiroyuki Saitoh, Atsunori Ikezawa, Hajime Arai, Ryoji Kanno, Takafumi Yamamoto, Masaki Azuma. Selective Synthesis of Perovskite Oxyhydrides Using a High-Pressure Flux Method, Journal of the American Chemical Society, American Chemical Society, Vol. 145, No. 30, pp. 16398-16405, July 2023.  Official location  
• Goro Fukunishi, Mayu Tabuchi, Atsunori Ikezawa, Takeyoshi Okajima, Fusao Kitamura, Kota Suzuki, Masaaki Hirayama, Ryoji Kanno, Hajime Arai. AC impedance analysis of NCM523 composite electrodes in all-solid-state three electrode cells and their degradation behavior, Journal of Power Sources, Vol. 564, No. 30, pp. 232864, Mar. 2023.  Official location  
• Atsunori Ikezawa, Yukinori Koyama, Tadaaki Nishizawa, Hajime Arai. A High Voltage Aqueous Proton Battery using an Optimized Operation of a MoO3 Positive Electrode, Journal of Materials Chemistry A, Page 2360 - 2366, Jan. 2023.  Official location  
• Haruki Kaneda, Yuki Furuichi, Atsunori Ikezawa, Hajime Arai. Single-Crystal-like Durable LiNiO2 Positive Electrode Materials for Lithium-Ion Batteries, ACS Applied Materials and Interfaces, PublisherAmerican Chemical Society, pp. 52766–52778, Nov. 2022.  Official location  
• Akira MATSUZAKI, Masaaki HIRAYAMA, Shouya OHGUCHI, Mamoru KOMO, Atsunori IKEZAWA, Kota SUZUKI, Kazuhisa TAMURA, Hajime ARAI, Ryoji Kanno. Oxygen Reduction Activity and Interfacial Structures of La0.8Sr0.2CoO3 at Initial Electrochemical Process in an Alkaline Solution, Electrochemistry, J-STAGE, Volume 90, Issue 10, Page 107001, Oct. 2022.
• Hajime Arai, Tetsuya Omiya, Atsunori Ikezawa. 中性子回折によるリチウムイオン電池劣化機構の検討, BATTERY TECHNOLOGY, 34, 101-108, Oct. 2022.
• Naoko Fujiwara, Tsutomu Ioroi, Hajime Arai. Carbon-Free Reversible Air Electrodes based on Perovskite Oxide and Conductive Oxide for Rechargeable Zinc-Air Batteries, Journal of The Electrochemical Society, Vol. 169, No. 5, May 2022.
• Atsunori Ikezawa, Kotaro Seki, Hajime Arai. Design of Bifunctional Air Electrodes Based on the Reaction Fields Between Oxygen Reduction Reaction and Oxygen Evolution Reaction, Electrochimica Acta, Volume 394, Page 139128, Oct. 2021.  Official location  
• Atsunori Ikezawa, Hajime Arai. In-situ Observations of Electrode Systems for Aqueous Secondary Batteries, BATTERY TECHNOLOGY, Vol. 33, 87-95, Oct. 2021.
• Haruki Kaneda, Yuki Furuichi, Atsunori Ikezawa, Hajime Arai. Effects of aluminum substitution in nickel-rich layered LiNixAl1−xO2 (x = 0.92, 0.95) positive electrode materials for Li-ion batteries on high-rate cycle performance, Journal of Materials Chemistry A, Vol. 9, pp. 21981-21994, Sept. 2021.
• Atsunori Ikezawa, Masato Horiuchi, Hajime Arai. Occurrence of shape change in rechargeable alkaline zinc electrodes observed by operando confocal optics and X-ray diffraction, Journal of Power Sources, 507, 230291, July 2021.  Official location  
• Hajime Arai, Atsuko Yaguchi, Yoshihiro Nishimura, Yuya Akimoto, Atsunori Ikezawa. Operando optical analysis of LiFePO4 composite electrodes, The Journal of Physical Chemistry, 125, 7, 3776-3780, Feb. 2021.  Official location  
• Atsunori Ikezawa, Goro Fukunishi, TAKEYOSHI OKAJIMA, FUSAO KITAMURA, Kota Suzuki, Masaaki Hirayama, Ryoji KANNO, Hajime Arai. Performance of Li4Ti5O12-based Reference Electrode for the Electrochemical Analysis of All-solid-state Lithium-ion Batteries, Electrochemistry Communications, Vol. 116, 106743, Mar. 2020.  Official location  
• Naoko Fujiwara, Tsukasa Nagai, Tsutomu Ioroi, Hajime Arai, Zempachi Ogumi. Bifunctional electrocatalysts of lanthanum-based perovskite oxide with Sb-doped SnO2 for oxygen reduction and evolution reactions, Journal of Power Sources, Vol. 451, Page 227736, Mar. 2020.
• Masahiko HAYASHI, Shuhei SAKAMOTO, Masaya NOHARA, Mikayo IWATA, Kota SUZUKI, Masaaki HIRAYAMA, Jiro NAKAMURA, Hajime ARAI, Ryoji KANNO, Takeshi KOMATSU. Influence of Morphology of Highly Ordered Mesoporous Carbon Replica on Electrochemical Properties of Air Electrodes with Pt-Ru Electrocatalyst/Carbon Replica Support in Nonaqueous Electrolyte Solution, Electrochemistry, Vol. 87, Issue 1, Page 52-58, Jan. 2019.
• Hajime Arai. 亜鉛の溶解析出機構と二次電池への応用, 電気化学および工業物理化学, Vol. 86, p. 311-314, Dec. 2018.
• Atsushi Sakuda, Koji Ohara, Tomoya Kawaguchi, Katsutoshi Fukuda, Koji Nakanishi, Hajime Arai, Yoshiharu Uchimoto, Toshiaki Ohta, Eiichiro Matsubara, Zempachi Ogumi, Kentaro Kuratani, Hironori Kobayashi, Masahiro Shikano, Tomonari Takeuchi, Hikari Sakaebe. A Reversible Rocksolat to Amorphous Phase Transition Involving Anion Redox, Scientific Reports, Vol. 8, p. 15086_1-6, Oct. 2018.
• Tadashi Kakeya, Akiyoshi Nakata, Hajime Arai, Zempachi Ogumi. Enhanced zinc electrode rechargeability in alkaline electrolytes containing hydrophilic organic materials with positive electrode compatibility, Journal of Power Sources, Vol. 407, p. 180-184, Aug. 2018.
• Akiyoshi Nakata, Hajime Arai, Haruno Murayama, Katsutoshi Fukuda, Tomokazu Yamane, Toshiro Hirai, Yoshiharu Uchimoto, Jun-ichi Yamaki, Zempachi Ogumi. In situ Zn/ZnO mapping elucidating for "shape change" of zinc electrode, APL Materials, Vol. 6, No. 4, p. 047703_1-6, Jan. 2018.
• Mukkannan Azhagurajan, Akiyoshi Nakata, Hajime Arai, Zempachi Ogumi, Tatsuya Kajita, Takashi Ito, Kingo Itaya. Effects of Vanillin to Prevent the Dendrite Growth of Zn in Zinc-based Secondary Batteries, Journal of The Electrochemical Society, Vol. 164, No. 12, pp. A2407–A2417, Aug. 2017.
• Atsushi Sakuda, Koji Ohara, Katsutoshi Fukuda, Koji Nakanishi, Tomoya Kawaguchi, Hajime Arai, Yoshiharu Uchimoto, Toshiaki Ohta, Eiichiro Matsubara, Zempachi Ogumi, Toyoki Okumura, Hironori Kobayashi, Hiroyuki Kageyama, Masahiro Shikano, Hikari Sakaebe, Tomonari Takeuchi. Amorphous metal polysulfides: electrode materials with unique insertion/extraction reactions, Journal of the American Chemical Society, Vol. 139, p. 8796-8799, June 2017.
• Etsushi Tsuji, Teruki Motohashi, Hiroyuki Noda, Damian Kowalski, Yoshitaka Aoki, Hajime Tanida, Junji Niikura, Yukinori Koyama, Masahiro Mori, Hajime Arai, Tsutomu Ioroi, Naoko Fujiwara, Yoshiharu Uchimoto, Zempachi Ogumi, Hiroki Habazaki. Brownmillerite-type Ca2FeCoO5 as a Practicable Oxygen Evolution Reaction Catalyst, ChemSusChem, Vol. 10, p. 2864-2868, June 2017.
• Yukinori Koyama, Takeshi Uyama, Yuki Orikasa, Takahiro Naka, Hideyuki Komatsu, Keiji Shimoda, Haruno Murayama, Katsutoshi Fukuda, Hajime Arai, Eiichiro Matsubara, Yoshiharu Uchimoto, Zempachi Ogumi. Hidden Two-Step Phase Transition and Competing Reaction Pathways in LiFePO4, Chemistry of Materials, Vol. 29, pp. 2855, Mar. 2017.
• Keiji Shimoda, Masatsugu Oishi, Toshiyuki Matsunaga, Miwa Murakami, Keisuke Yamanaka, Hajime Arai, Yoshio Ukyo, Yoshiharu Uchimoto, Toshiaki Ohta, Eiichiro Matsubara, Zempachi Ogumi. Direct observation of layered-to-spinel phase transformation in Li2MnO3 and the spinel structure stabilised after the activation process, Journal of Material Chemistry A, Vol. 5, pp. 6695, Mar. 2017.
• Koji Kitada, Haruno Murayama, Katsutoshi Fukuda, Hajime Arai, Yoshiharu Uchimoto, Zempachi Ogumi. Effect of Potential Profile on Battery Capacity Decrease during Continuous Cycling, The Journal of Physical Chemistry C, Vol. 121, pp. 6018, Feb. 2017.
• Ikuma Takahashi, Takuya Mori, Takahiro Yoshinari, Yuki Orikasa, Yukinori Koyama, Haruno Murayama, Katsutoshi Fukuda, Masaharu Hatano, Hajime Arai, Yoshiharu Uchimoto, Takayuki Terai. Irreversible Phase Transition between LiFePO4 and FePO4 during High-rate Charge-discharge Reaction by operando X-ray Diffraction, Journal of Power Sources, Vol. 309, pp. 122, Jan. 2017.
• Ikuma Takahashi, Katsutoshi Fukuda, Tomoya Kawaguchi, Hideyuki Komatsu, Masatsugu Oishi, Haruno Murayama, Masaharu Hatano, Takayuki Terai, Hajime Arai, Yoshiharu Uchimoto, Eiichiro Matsubara. Quantitative Analysis of Transition-Metal Migration Induced Electrochemically in Lithium-Rich Layered Oxide Cathode and Its Contribution to Properties at High and Low Temperatures, The Journal of Physical Chemistry C, Vol. 120, pp. 27109, Nov. 2016.
• Taketoshi Minato, Hiroyuki Kawaura, Masaaki Hirayama, Sou Taminato, Kota Suzuki, Norifumi L. Yamada, Hidetaka Sugaya, Kentaro Yamamoto, Koji Nakanishi, Yuki Orikasa, Hajime Tanida, Ryoji Kanno, Hajime Arai, Yoshiharu Uchimoto, Zempachi Ogumi. Dynamic Behavior at the Interface between Lithium Cobalt Oxide and an Organic Electrolyte Monitored by Neutron Reflectivity Measurements, The Journal of Physical Chemistry C, Vol. 120, No. 36, pp. 20082-20088, Sept. 2016.
• Sou Taminato, Masao Yonemura, Shinya Shiotani, Takashi Kamiyama, Shuki Torii, Miki Nagao, Yoshihisa Ishikawa, Kazuhiro Mori, Toshiharu Fukunaga, Yohei Onodera, Takahiro Naka, Makoto Morishima, Yoshio Ukyo, Dyah Sulistyanintyas Adipranoto, Hajime Arai, Yoshiharu Uchimoto, Zempachi Ogumi, Kota Suzuki, Masaaki Hirayama, Ryoji Kanno. Real-time observations of lithium battery reactions—operando neutron diffraction analysis during practical operation, Scientific Reports, Vol. 6, No. Article number: 28843, June 2016.  Official location  
• Toshiyuki Matsunaga, Hideyuki Komatsu, Keiji Shimoda, Taketoshi Minato, Masao Yonemura, Takashi Kamiyama, Shunsuke Kobayashi, Takeharu Kato, Tsukasa Hirayama, Yuichi Ikuhara, Hajime Arai, Yoshio Ukyo, Yoshiharu Uchimoto, Zempachi Ogumi. Dependence of structural defects in Li2MnO3 on synthesis temperature, Chemistry of Materials, Vol. 28, pp. 4143, June 2016.
• Toshiyuki Matsunaga, Hideyuki Komatsu, Keiji Shimoda, Taketoshi Minato, Masao Yonemura, Takashi Kamiyama, Shunsuke Kobayashi, Takeharu Kato, Tsukasa Hirayama, Yuichi Ikuhara, Hajime Arai, Yoshio Ukyo, Yoshiharu Uchimoto, Zempachi Ogumi. Structural Understanding of Superior Battery Properties of Partially Ni-Doped Li2MnO3 as Cathode Material, The Journal of Physical Chemistry Letters, Vol. 7, pp. 2063, May 2016.
• Masatsugu Oishi, Keisuke Yamanaka, Iwao Watanabe, Keiji Shimoda, Toshiyuki Matsunaga, Hajime Arai, Yoshio Ukyo, Yoshiharu Uchimoto, Zempachi Ogumi, Toshiaki Ohta. Direct observation of reversible oxygen anion redox reaction in Li-rich manganese oxide, Li2MnO3, studied by soft X-ray absorption spectroscopy, Journal of Materials Chemistry A, Vol. 4, pp. 9293, May 2016.
• Yuki Orikasa, Yuma Gogyo, Hisao Yamashige, Misaki Katayama, Kezheng Chen, Takuya Mori, Kentaro Yamamoto, Titus Masese, Yasuhiro Inada, Toshiaki Ohta, Zyun Siroma, Shiro Kato, Hajime Kinoshita, Hajime Arai, Zempachi Ogumi, Yoshiharu Uchimoto. Ionic Conduction in Lithium Ion Battery Composite Electrode Governs Cross-sectional Reaction Distribution, Scientific Reports, Vol. 6, pp. 26382, May 2016.
• Keiji Shimoda, Taketoshi Minato, Koji Nakanishi, Hideyuki Komatsu, Toshiyuki Matsunaga, Hajime Tanida, Hajime Arai, Yoshio Ukyo, Yoshiharu Uchimoto, Zempachi Ogumi. Oxidation behaviour of lattice oxygen in Li-rich manganese-based layered oxide studied by hard X-ray photoelectron spectroscopy, Journal of Materials Chemistry A, Vol. 4, pp. 5909, Mar. 2016.
• Sou Taminato, Masaaki Hirayama, Kota Suzuki, Kazuhisa Tamura, Taketoshi Minato, Hajime Arai, Yoshiharu Uchimoto, Zempachi Ogumi, Ryoji Kanno. Lithium intercalation and structural changes at the LiCoO2 surface under high voltage battery operation, Journal of Power Sources, Vol. 307, pp. 599-603, Mar. 2016.
• Hajime Tanida, Hisao Yamashige, Yuki Orikasa, Yuma Gogyo, Hajime Arai, Yoshiharu Uchimoto, Zempachi Ogumi. Elucidating the Driving Force of Relaxation of Reaction Distribution in LiCoO2 and LiFePO4 Electrodes Using X‐ray Absorption Spectroscopy, The Journal of Physical Chemistry C, Vol. 120, pp. 4739, Feb. 2016.
• Koji Ohara, Akio Mitsui, Masahiro Mori, Yohei Onodera, Shinya Shiotani, Yukinori Koyama, Yuki Orikasa, Miwa Murakami, Keiji Shimoda, Kazuhiro Mori, Toshiharu Fukunaga, Hajime Arai, Yoshiharu Uchimoto, Zempachi Ogumi. Structural and electronic features of binary Li2S-P2S5 glasses, Scientific Reports, Vol. 6, pp. 21032, Feb. 2016.
• Ikuma Takahashi, Hajime Arai, Haruno Murayama, Kenji Sato, Hideyuki Komatsu, Hajime Tanida, Yukinori Koyama, Yoshiharu Uchimoto, Zempachi Ogumi. Phase transition kinetics of LiNi0.5Mn1.5O4 analyzed by temperature-controlled operando X-ray absorption spectroscopy, Physical Chemistry Chemical Physics, Vol. 18, pp. 1897, Dec. 2015.
• Akiyoshi Nakata, Hajime Arai, Tomokazu Yamane, Toshiro Hirai, Zempachi Ogumi. Preserving Zinc Electrode Morphology in Aqueous Alkaline Electrolytes Mixed with Highly Concentrated Organic Solvent, Journal of The Electrochemical Society, Vol. 163, pp. A50, Nov. 2015.
• Koji Kitada, Haruno Murayama, Katsutoshi Fukuda, Hajime Arai, Yoshiharu Uchimoto, Zempachi Ogumi, Eiichiro Matsubara. Factors determining the packing-limitation of active materials in the composite electrode of lithium-ion batteries, Journal of Power Sources, Vol. 301, pp. 11, Sept. 2015.
• Himeko Orui, Reiichi Chiba, Kazuhiko Nozawa, Hajime Arai, Ryoji Kanno. High-temperature stability of alumina containing nickel–zirconia cermets for solid oxide fuel cell anodes, Journal of Power Sources, Vol. 238, p. 74-80, Sept. 2013.

Book

• Atsunori Ikezawa, Hajime Arai. 亜鉛空気二次電池, 次世代二次電池の開発動向, 株式会社シーエムシー出版, p. 212-223, Apr. 2023.
• Hajime Arai, Atsunori Ikezawa. 亜鉛空気電池：物質輸送の制御技術, CSJ Current Review 44 Chemistry of Batteries for Mobilities, Page 45-49, Mar. 2022.
• Hajime Arai, Atsunori Ikezawa. 金属空気二次電池 -要素技術の開発動向と応用展望-, サイエンス＆テクノロジー社, Jan. 2021.
• Hajime Arai, Jürgen Garche, Luis Colmenares. Metal–Air Batteries: Present and Perspectives, Elsevier, Oct. 2020.
• Hajime Arai. Introduction - General features of metal-air batteries, Electrochemical Power Sources: Fundamentals, Systems, and Applications: Metal–Air Batteries: Present and Perspectives, Elsevier, pp. 1-10, Oct. 2020.
• Hajime Arai. 電池内部での電極挙動その場観察手法の開発と成果, ポストリチウムに向けた革新的二次電池の材料開発, エヌティーエス, pp. 23-33, Feb. 2018.

International Conference (Reviewed)

• Wang Guanyu, Atsunori Ikezawa, Keiko Waki, Takeyoshi Okajima, Hajime Arai. (Fe, N)-Doped Carbon Black Catalysts for Oxygen Reduction Reaction Applied to Gas-Diffusion Electrodes, PRiME 2024, Oct. 2024.
• Kotaro Yoshida, Atsunori Ikezawa, Takeyoshi Okajima, Shoma Yanagihara, Saneyuki Ohno, Hajime Arai. Electrochemical Analyses of the Li-Ion Transfer Resistances at the Chloride Solid Electrolyte | Sulfide Solid Electrolyte Interfaces, PRiME 2024, Oct. 2024.
• Tomohiro Osaki, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. Elucidation of Degradation Mechanism of Lithium-Ion Batteries Under High Temperature Environment, PRiME 2024, Oct. 2024.
• Liu Rui, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. Designing Bifunctional Bilayer Air Electrode for Zinc−Air Batteries , PRiME 2024, Oct. 2024.
• Nanako Nonaka, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. Indicators for Optical Analysis of Local Conditions in Bifunctional Air Electrodes, PRiME 2024, Oct. 2024.
• Kota Nakahara, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. Effect of Micro- and Mesopore Size on Electronic Structure and Oxygen Reduction Kinetics of Platinum, PRiME 2024, Oct. 2024.
• Atsunori Ikezawa, Kotaro Seki, Moritz Borkenhagen, Hajime Arai, Daniel Schröder. Analysis of Species Concentrations in Bifunctional Air Electrodes Using Mathematical Modeling and Simulation, PRiME 2024, Oct. 2024.
• Yusuke Kida, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. Charge-Discharge Behavior of Spinel-Type Manganese Dioxide for Positive Electrode Materials for Aqueous Proton Batteries, PRiME 2024, Oct. 2024.
• Masataka Mashino, Atsunori Ikezawa, Marina Murakami, Takeshi Shimomura, Takeyoshi Okajima, Hajime Arai. Operando XRD Observation of NMC Cathode for Reaction Distribution Analysis Under Fast Discharging, PRiME 2024, Oct. 2024.
• Haruhisa Nakata, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. Oxygen Evolution Reaction Activity of Highly Crystalline Hydrated Cobalt Oxyhydroxide Synthesized with Soft Chemistry, PRiME 2024, Oct. 2024.
• Shugo Shimizu, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. Quantitative Differential Electrochemical Mass Spectroscopy Analysis of Electrochemical Carbon Corrosion Reactions in Alkaline Electrolyte Solutions, PRiME 2024, Oct. 2024.
• Atsunori Ikezawa, Kento Imai, Mingqi Xiao, Ryohei Kosasa, Shinji Koito, TAKEYOSHI OKAJIMA, Hajime Arai. Chimie Douce for variety of electrode materials, The 14th Japan-France Joint Seminar on Battery, Sept. 2024.
• Hiroshi Suyama, Shigeki Sato, Tomoya Matsunaga, Toshihiko Inoue, Atsunori Ikezawa, Hajime Arai. A Neutral Proton NiMH Battery Using Anti-Freezing Highly Concentrated Potassium Pyrophosphate Aqueous Electrolytes, ACEPS12-Asian Conference on Electrochemical Power Sources12, May 2024.
• Liu Rui, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. Designing bifunctional bilayer electrode for Zinc-air batteries, ACEPS12-Asian Conference on Electrochemical Power Sources12, May 2024.
• Wang Guanyu, Atsunori Ikezawa, Keiko Waki, Takeyoshi Okajima, Hajime Arai. (Fe, N)-doped carbon black catalysts formed by rapid thermal annealing for oxygen reduction reaction, ACEPS12-Asian Conference on Electrochemical Power Sources12, May 2024.
• Atsunori Ikezawa, Shinji Koito, Hajime Arai. Oxygen Evolution Reaction Activities of Highly Crystalline γNixFe1-xOOH Synthesized with Soft Chemistry, ACEPS12-Asian Conference on Electrochemical Power Sources12, May 2024.
• Hajime Arai, Atsunori Ikezawa, Heyang Xing, Teruya Hiramatsu, Yukinori Koyama, Tadaaki Nishizawa, Takeyoshi Okajima. Development of Proton Batteries, ACEPS12-Asian Conference on Electrochemical Power Sources12, May 2024.
• Kota Nakahara, Atsunori Ikezawa, Hajime Arai. Enhanced Kinetics of Oxygen Reduction Reactions in Alkaline Solutions inside Mesoporous Electrodes, 244th ECS Meeting, Oct. 2023.
• Chihiro Yamamoto, Atsunori Ikezawa, Hajime. Arai . Phase Transition Behavior of Biphasic Systems Affected By the Charge-Transfer Process, 244th ECS Meeting, Oct. 2023.
• Atsunori Ikezawa, Juri Kida, Shugo Shimizu, Hajime Arai. Quantitative Analysis of CO2 Evolution in an Alkaline Electrolyte Solution By Differential Electrochemical Mass Spectroscopy, 244th ECS Meeting, Oct. 2023.
• Hajime Arai, Horiuchi Masato, Aono Kento, Ikezawa Atsunori. Zinc electrode rechargeability observed by optical measurement and X-ray diffraction, 3rd International Zinc-air and other Zinc batteries workshop (IZABW), Sept. 2023.
• Atsunori Ikezawa, Kotaro Seki, Kensuke Takii, Juri Kida, Hajime Arai. Design of Bifunctional Air Electrodes Based on the Reaction Fields in Porous Gas Diffusion Electrodes, 3rd International Zinc-air and other Zinc batteries workshop (IZABW), Sept. 2023.
• Davide Cavaliere, Atsunori Ikezawa, Hajime Arai. Diagnosis of Li-ion battery degradation at high charging rate and low temperature, Lithium Battery Discussions "Electrode Materials" LiBD2023, June 2023.
• Atsunori Ikezawa, Goro Fukunishi, Atsuko Yaguchi, Yoshihiro Nishimura, Yuya Akimoto, Hajime Arai. Operando optical analysis of a graphite composite electrode in an all-solid-state lithium-ion battery at various temperatures, Lithium Battery Discussions "Electrode Materials" LiBD2023, June 2023.
• W. Kang, M. Kodama, A. Ikezawa, H. Arai, S. Hirai. Operando X-Ray Imaging of Gas-Electrolyte Behavior in the Zinc-Air Batteries, 243rd ECS Meeting, May 2023.
• Hajime Arai, Goro Fukunishi, Atsunori Ikezawa, Takeyoshi Okajima. Electrochemistry of all-solidstate cells using reduced lithium titanate as reference electrodes, Asian Conference on Electrochemical Power Sources-ACEPS'11, Dec. 2022.
• Atsunori Ikezawa, Juri Kida, Hajime Arai. Quantitative analysis of CO2 in an alkaline electrolyte solution by differential electrochemical mass spectroscopy, Asian Conference on Electrochemical Power Sources-ACEPS'11, Dec. 2022.
• Chihiro Yamamoto, Atsunori Ikezawa, Hajime. Arai . Phase Transition Behavior of LiFePO4 in Non-Aqueous and Aqueous Electrolytes, The Electrochemical Society-242nd ECS Meeting, Oct. 2022.
• Atsunori Ikezawa, Kotaro Seki, Hajime. Arai. Rational Placement of Catalysts for Oxygen Reduction and Evolution Reactions Based on the Reaction Sites in Porous Gas Diffusion Electrodes, The Electrochemical Society-242nd ECS Meeting, Oct. 2022.
• Goro Fukunishi, Mayu Tabuchi, Atsunori Ikezawa, TAKEYOSHI OKAJIMA, FUSAO KITAMURA, Kouta Suzuki, Masaaki Hirayama, Ryoji KANNO, Hajime Arai. Electrochemical characteristics and degradation analysis of NCM523 with all solid state three electrode cells, IBA2022, Oct. 2022.
• Tetsuya Omiya, Atsunori Ikezawa, Hajime Arai. Analysis of lithium-ion batteries seriously degraded under floating-charging conditions, IBA2022, Oct. 2022.
• Hajime Arai, Atsunori Ikezawa, Tadaaki Nishizawa, Yukinori Koyama. Development of MoO3-Based Proton Batteries, The Electrochemical Society-242nd ECS Meeting, Oct. 2022.
• Kota Nakahara, Atsunori Ikezawa, Hajime Arai. The effect of electrode nanostructure on oxygen reduction reactions in alkaline electrolyte solutions, 73rd Annual Meeting of the International Society of Electrochemistry, Sept. 2022.
• Haruki Kaneda, Yuki Fruichi, Atsunori Ikezawa, Hajime Arai. Single-Crystal-like LiNiO2 Positive Electrode Materials with High Durability, IMLB 2022, June 2022.
• Atsunori Ikezawa, Tadaaki Nishizawa, Hajime Arai. Aqueous Proton Battery Composed of Inorganic Active Materials, IMLB 2022, June 2022.
• Hajime Arai, Kento Imai, Tadaaki Nishizawa, Atsunori Ikezawa. Chimie Douce for Variety of Layered Materials, The Electrochemical Society-240th ECS Meeting, Oct. 2021.
• Haruki Kaneda, Yuki Furuichi, Atsunori Ikezawa, Hajime Arai. Synthesis and Electrochemical Performances of Ni-Rich LiNixAl1–XO2 (x=0.95, 0.92) Positive Electrode Materials for Li-Ion Batteries, The Electrochemical Society-240th ECS Meeting, Oct. 2021.
• Hajime Arai, Atsunori Ikezawa. Chances and challenges in zinc electrode rechargeability, The 2020 MRS Virtual Spring/Fall Meeting & Exhibit, Nov. 2020.
• Goro Fukunishi, Atsunori Ikezawa, TAKEYOSHI OKAJIMA, FUSAO KITAMURA, Kouta Suzuki, Masaaki Hirayama, Ryoji KANNO, Hajime Arai. All-Solid-State Three-Electrode Cells with Reduced Li4 Ti5 O12 Reference Electrode, PRiME 2020, Oct. 2020.
• Atsunori Ikezawa, Masato Horiuchi, Hajime Arai. Operando Observation of Zinc Negative Electrode Using Confocal Optical System and X-Ray Diffraction, PRiME 2020, Oct. 2020.
• Atsunori Ikezawa, Hajime Arai. Condition of the Reaction Sites in Alkaline Air Electrodes, The 10th Asian Conference on Electrochemical Power Sources (ACEPS 10-2019), Nov. 2019.
• Hajime Arai, Atsunori Ikezawa. Operando Lab-analysis of Electrodes for Aqueous Systems, The 10th Asian Conference on Electrochemical Power Sources (ACEPS 10-2019), Nov. 2019.
• Atsunori Ikezawa, Goro Fukunishi, Keisuke Shirabe, FUSAO KITAMURA, TAKEYOSHI OKAJIMA, Kouta Suzuki, Masaaki Hirayama, Ryoji KANNO, Hajime Arai. Behavior of Lithium Cobalt Oxide in Two-and Three-Electrode All-Solid-State Cells, 9th Lithum Battery Discussions, Sept. 2019.
• Atsunori Ikezawa, Kohei Miyazaki, Tomokazu Fukutsuka, Hajime Arai, Takeshi Abe. Local Reactions in Bifunctional Air Electrodes for Aqueous Metal-air Secondary Batteries, IBA2019, Mar. 2019.
• H. Arai, A. Yaguchi, Y. Nishimura, Y. Akimoto, A. Ikezawa. Optical Observation of LiFePO4 Electrode Inhomogeneity, IBA2019, Mar. 2019.
• Atsushi Sakuda, Tomonari Takeuchi, Koji Ohara, Tomoya Kawaguchi, Koji Nakanishi, Katsutoshi Fukuda, Hajime Arai, Yoshiharu Uchimoto, Zempachi Ogumi, Toshiaki Ohta, H. Kageyama, M. Shikano, Hikari Sakaebe. Analysis of Charge-Discharge Mechanism of Titanium Polysulfide Electrode Materials for Lithium/Metal-Polysulfide Secondary Batteries, 18th International Meeting on Lithium Batteries, June 2016.

Domestic Conference (Reviewed)

• Kotaro Yoshida, Atsunori Ikezawa, TAKEYOSHI OKAJIMA, Hajime Arai. 全固体4電極式セルを用いた硫化物系固体電解質接合界面におけるリチウムイオン移動の電気化学測定, 第42回 夏の学校 電気化学会 関東支部, Sept. 2024.
• Kotaro Yoshida, Atsunori Ikezawa, TAKEYOSHI OKAJIMA, Hajime Arai. 全固体4電極式セルを用いた硫化物系固体電解質接合界面における Li+移動の 電気化学測定, 一般社団法人粉体粉末冶金協会 2024年度春季大会（第133回講演大会）, May 2024.
• Kotaro Yoshida, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. 全固体4極式セルを用いた硫化物系固体電解質接合界面におけるLi+移動の電気化学測定, 電気化学会第91回大会, Mar. 2024.
• Hiroshi Suyama, Shigeki Sato, 近 真紀雄, Tomoya Matsunaga, Toshihiko Inoue, Atsunori Ikezawa, Hajime Arai. 濃厚K４P２O７水溶液を用いた中性水溶液系プロトン電池の電池特性評価, 電気化学会第91回大会, Mar. 2024.
• Wang Guanyu, Ikezawa Atsunori, Waki Keiko, Okajima Takeyoshi, Arai Hajime. Optimization of (Fe, N)-doped carbon black catalysts formed by rapid thermal annealing for oxygen reduction reaction in alkaline media, 電気化学会第91回大会, Mar. 2024.
• Nanako Nonaka, Atsunori Ikezawa, Takeyoshi Okajima, Hajime Arai. 二機能性空気極内局所状態の光学観察に向けた指示物質の探索, 電気化学会第91回大会, Mar. 2024.
• Kota Nakahara, Atsunori Ikezawa, TAKEYOSHI OKAJIMA, Hajime Arai. ミクロおよびメソ孔径が白金の電子構造および酸素還元活性に与える影響, 電気化学会第91回大会, Mar. 2024.
• Atsunori Ikezawa, Moritz Borkenhagen, Katja Kretschmer, Hajime Arai, Daniel Schröder. デジタルシミュレーションを用いた二機能性空気極における局所状態の解析, 電気化学会第91回大会, Mar. 2024.
• Tetsuya Omiya, Atsunori Ikezawa, 斉藤 景一, 高橋 慶多, Masao Yonemura, 齊藤 高志, Takashi Kamiyama, 森 一広, Hajime Arai. 充電抑制・放電抑制によるリチウムイオン電池寿命改善効果の要因解析, 第64回電池討論会, Nov. 2023.
• Davide Cavaliere, Atsunori Ikezawa, Hajime Arai. オペランド電気化学インピーダンス法を用いたリチウムイオン電池の劣化解析, 第64回電池討論会, Nov. 2023.
• Atsunori Ikezawa, Kensuke Takii, Juri Kida, TAKEYOSHI OKAJIMA, Hajime Arai. 触媒の炭素腐食反応活性に立脚した二機能性空気極の設計, 第64回電池討論会, Nov. 2023.
• 植村 真結, Junko Yaguchi, Yoshihiro Nishimura, Yuya Akimoto, Atsunori Ikezawa, Hajime Arai. リン酸鉄リチウム正極のコンフォーカル光学系による反応分布解析, 第64回電池討論会, Nov. 2023.
• Hiroshi Suyama, Shigeki Sato, Tomoya Matsunaga, Toshihiko Inoue, Atsunori Ikezawa, Hajime Arai. K4P2O7濃厚水溶液中の層状水酸化ニッケル系正極の充放電反応解析, 第64回電池討論会, Nov. 2023.
• Ryohei Kosasa, Atsunori Ikezawa, Shigeki Sato, Hiroshi Suyama, Tomoya Matsunaga, TAKEYOSHI OKAJIMA, Hajime Arai. アルカリ電解液における高結晶性層状水和二酸化マンガン正極の充放電メカニズム解明, 第64回電池討論会, Nov. 2023.
• Haruki Kaneda, 古市 佑樹, Atsunori Ikezawa, Hajime Arai. 多結晶および単結晶状LiNiO2正極活物質の熱安定性, 第64回電池討論会, Nov. 2023.
• Masataka Mashino, Atsunori Ikezawa, 佐久間 剛, 下村 威, 折笠 有基, 稲田 康宏, Hajime Arai. 様々な多孔度・厚みを有するリチウムイオン電池電極の高速放電時の反応分布解析, 第64回電池討論会, Nov. 2023.
• Yuta Keeda, Atsunori Ikezawa, TAKEYOSHI OKAJIMA, Hajime Arai. QCMとコンフォーカル光学系を組み合わせたアルカリ水溶液における亜鉛極充放電過程のその場測定, 2023年 電気化学秋季大会, Sept. 2023.
• Kensuke Takii, Atsunori Ikezawa, TAKEYOSHI OKAJIMA, Hajime Arai. 炭素および酸化物を触媒担体に用いた積層型触媒層を有する二機能性空気極の電気化学特性, 2023年 電気化学秋季大会, Sept. 2023.
• Teruya Hiramatsu, Atsunori Ikezawa, TAKEYOSHI OKAJIMA, Hajime Arai. 濃厚酸性水溶液を電解液とするプロトン電池における水素発生反応の抑制, 2023年 電気化学秋季大会, Sept. 2023.
• Haruki Kaneda, 古市 佑樹, Atsunori Ikezawa, Hajime Arai. Co置換によるLiNiO2の放電反応の活性化とそのメカニズム, 電気化学会第90回大会, Mar. 2023.
• Atsunori Ikezawa, Shinji Koito, Hajime Arai. ソフトケミカル法を用いて合成した高結晶性含水型オキシ水酸化ニッケルの酸素発生反応活性評価, 電気化学会第90回大会, Mar. 2023.
• 倪 佳媛, 宮原 雄人, Kohei Miyazaki, 李 昌熹, 坂本 遼, Atsunori Ikezawa, Hajime Arai, Takeshi Abe. カーボン担体とペロブスカイト酸化物が酸素電極触媒活性および耐久性に対して相互に与える影響の検討, 電気化学会第90回大会, Mar. 2023.
• Chihiro Yamamoto, Atsunori Ikezawa, Hajime Arai. 二相共存系材料であるLiFePO4をモデル系とした相転移挙動の検討, 電気化学会第90回大会, Mar. 2023.
• Hiroshi Suyama, Shigeki Sato, 松永 朋也, 井上 俊彦, Atsunori Ikezawa, Hajime Arai. Evaluation of anti-freezing highly-concentrated aqueous, 電気化学会第90回大会, Mar. 2023.
• Kotaro Yoshida, Atsunori Ikezawa, Goro Fukunishi, Hajime Arai. 全固体4電極式セルを用いた異種の硫化物系固体電解質接合界面におけるLi+移動抵抗の分離, 第48回 固体イオニクス討論会, Dec. 2022.
• Atsunori Ikezawa, Heyang Xing, Tadaaki Nishizawa, 小山 幸典, Hajime Arai. 水系プロトン電池に用いる酸化物系正極活物質の検討, 第63回電池討論会, Nov. 2022.
• Guanyu Wang, Keiko Waki, Hajime Arai. Study of (Fe, N)-doped Carbon Black Catalysts Formed by Rapid Thermal Annealing for Oxygen Reduction Reaction, 第63回電池討論会, Nov. 2022.
• Davide Cavaliere, Atsunori Ikezawa, Hajime Arai. 低温急速充電で劣化したリチウムイオン電池の解析及び診断手法, 第63回電池討論会, Nov. 2022.
• Tetsuya Omiya, Atsunori Ikezawa, 斉藤 景一, 高橋 慶多, Masao Yonemura, 齊藤 高志, Takashi Kamiyama, 森 一広, Hajime Arai. 連続充電セルの劣化に及ぼす充電電圧・放電深度の影響の解明, 第63回電池討論会, Nov. 2022.
• Atsunori Ikezawa, Kento Aono, Hajime Arai. 亜鉛負極の充放電挙動に与えるテルル添加効果の検討, 第63回電池討論会, Nov. 2022.
• Junko Yaguchi, Goro Fukunishi, Atsunori Ikezawa, Yoshihiro Nishimura, Yuya Akimoto, Hajime Arai. コンフォーカル光学系による全固体電池黒鉛負極のOperando観察, 第63回電池討論会, Nov. 2022.
• Shinji Koito, Atsunori Ikezawa, Hajime Arai. ソフト化学法を用いた含水型オキシ水酸化ニッケルの合成と酸素発生反応活性評価, 2022年 電気化学秋季大会, Sept. 2022.
• Kota Nakahara, Atsunori Ikezawa, Hajime Arai. アルカリ溶液における酸素還元反応に及ぼすナノ細孔長の影響, 2022年 電気化学秋季大会, Sept. 2022.
• Heyang Xing, Atsunori Ikezawa, Hajime Arai. LiV3O8 as positive electrode materials for rechargeable proton batteries, 2022年 電気化学秋季大会, Sept. 2022.
• Kento Aono, Atsunori Ikezawa, Hajime Arai. 亜鉛極の充放電挙動に与えるテルル添加効果の検討, 2022年 電気化学秋季大会, Sept. 2022.
• Chihiro Yamamoto, Atsunori Ikezawa, Hajime Arai. 非水および水系電解液中におけるLiFePO4の相転移挙動, 電気化学会第89回大会, Mar. 2022.
• Kota Nakahara, Atsunori Ikezawa, Hajime Arai. アルカリ水溶液における酸素還元反応に与える電極ナノ構造の影響, 電気化学会第89回大会, Mar. 2022.
• Tetsuya Omiya, Atsunori Ikezawa, 斉藤景一, 高橋慶多, Masao Yonemura, 齊藤高志, Takashi Kamiyama, 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の状態解析, 2021年度量子ビームサイエンスフェスタ, Mar. 2022.
• Atsunori Ikezawa, Juri Kida, Hajime Arai. 電気化学質量分析を用いた水酸化カリウム水溶液における炭素腐食反応解析, 電気化学会第89回大会, Mar. 2022.
• Goro Fukunishi, Mayu Tabuchi, Atsunori Ikezawa, 岡島 武義, 北村 房男, Kouta Suzuki, Masaaki Hirayama, Ryoji KANNO, Hajime Arai. 全固体三極式セルによる三元系正極材料の電極特性評価とサイクル特性評価, 電気化学会第89回大会（web開催）, Mar. 2022.
• 高橋慶多, Tetsuya Omiya, Atsunori Ikezawa, Masao Yonemura, Takashi Saito, Takashi Kamiyama, 斉藤景一, Hajime Arai. Degradation analysis of lithium-ion batteries during float charging with partial discharging, 電子情報通信学会 研究会発表 (電子通信エネルギー技術研究会), Jan. 2022.
• 増野 正高, Atsunori Ikezawa, 村上 満理奈, 下村 威, Hajime Arai. Operando XRDによるNCM電極の高速放電時の反応分布解析, 第62回電池討論会, Nov. 2021.
• Goro Fukunishi, Mayu Tabuchi, Atsunori Ikezawa, TAKEYOSHI OKAJIMA, FUSAO KITAMURA, Kouta Suzuki, Masaaki Hirayama, Ryoji KANNO, Hajime Arai. チタン酸リチウム部分還元体を有する参照極を用いた全固体系における三元系正極材料の電極特性評価, 第62回電池討論会, Nov. 2021.
• Goro Fukunishi, Atsunori Ikezawa, TAKEYOSHI OKAJIMA, FUSAO KITAMURA, Kouta Suzuki, Masaaki Hirayama, Ryoji KANNO, Hajime Arai. チタン酸リチウム部分還元体を有する参照極を用いた全固体系における黒鉛の電極特性・サイクル特性評価, 第62回電池討論会, Nov. 2021.
• Junko Yaguchi, Goro Fukunishi, Yuuto Yamada, Atsunori Ikezawa, Yoshihiro Nishimura, Yuya Akimoto, Hajime Arai. コンフォーカル光学系による全固体電池のOperando観察, 第62回電池討論会, Nov. 2021.
• Haruki Kaneda, 小山 祐樹, 小鹿 裕希, 古市 佑樹, Atsunori Ikezawa, Hajime Arai. 高耐久性を有する単結晶状LiNiO2の合成, 第62回電池討論会, Nov. 2021.
• Atsunori Ikezawa, Tadaaki Nishizawa, Hajime Arai. 無機系プロトン挿入脱離型電極を用いた水系プロトン電池, 第62回電池討論会, Nov. 2021.
• 小林 剛, 山崎 温子, 別役 潔, 三田 裕一, Goro Fukunishi, Atsunori Ikezawa, Hajime Arai, 川合 光幹, 嶋田 幹也. 電圧解析技術と電池解体分析技術による液系 LIB および全固体 LIB の劣化評価, 第62回電池討論会, Nov. 2021.
• Tetsuya Omiya, Atsunori Ikezawa, 斉藤 景一, 高橋 慶多, Masao Yonemura, 齊藤 高志, Takashi Kamiyama, Hajime Arai. 顕著に劣化したリチウムイオン電池の電極解析, 第62回電池討論会, Nov. 2021.
• Kento Aono, Atsunori Ikezawa, Manabu Kodama, Shuichiro hirai, Hajime Arai. 低レート放電時に生じる亜鉛極劣化挙動の解析, 日本化学会秋季事業 第11回 CSJ化学フェスタ2021, Oct. 2021.
• Hajime Arai, Tetsuya Omiya, Atsunori Ikezawa. 中性子回折によるリチウムイオン電池劣化機構の検討, 第115回新電池構想部会, Oct. 2021.
• Kota Nakahara, Atsunori Ikezawa, Hajime Arai. アルカリ水溶液における酸素電極反応に与える電極微細構造の影響, 2021年電気化学秋季大会, Sept. 2021.
• Mingqi Xiao, Atsunori Ikezawa, Hajime Arai. アルカリ水溶液におけるマグネシウムドープ含水型水酸化ニッケルの充放電特性, 2021年電気化学秋季大会, Sept. 2021.
• Juri Kida, Hajime Arai, Atsunori Ikezawa. 電気化学質量分析を用いた二機能性空気極における炭素腐食反応の解析, 2021年電気化学秋季大会, Sept. 2021.
• Tetsuya Omiya, Atsunori Ikezawa, 斉藤 景一, 高橋 慶多, Masao Yonemura, 齊藤 高志, Takashi Kamiyama, Hajime Arai. 定期的な放電を含むフロート充電時に進行するリチウムイオン電池の劣化解析, 2021年 電気化学会第88回大会, Mar. 2021.
• Haruki Kaneda, 古市 佑樹, Atsunori Ikezawa, Hajime Arai. Ni-rich系LiNixAl1-xO2(x=0.95, 0.92)層状正極活物質の合成と電気化学特性, 2021年 電気化学会第88回大会, Mar. 2021.
• Tetsuya Omiya, Atsunori Ikezawa, 斉藤景一, 高橋慶多, 米村雅雄, 齊藤高志, Takashi Kamiyama, 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の劣化要因解析, 2020年度量子ビームサイエンスフェスタ, Mar. 2021.
• Goro Fukunishi, Mayu Tabuchi, Atsunori Ikezawa, TAKEYOSHI OKAJIMA, FUSAO KITAMURA, Kouta Suzuki, Masaaki Hirayama, Ryoji KANNO, Hajime Arai. チタン酸リチウムのメッシュ型参照極を用いた全固体三極式セルにおけるインピーダンス測定, 2021年 電気化学会第88回大会, Mar. 2021.
• Hajime Arai. バックアップ用途リチウムイオン電池の劣化状態解析, アドバンストバッテリー技術研究会第188回定例研究会, Feb. 2021.
• Hajime Arai, Atsunori Ikezawa. LiNiO2誘導体の水系電池特性, 第46回固体イオニクス討論会, Dec. 2020.
• Tetsuya Omiya, Atsunori Ikezawa, 斉藤 景一, 高橋 慶多, Masao Yonemura, 齊藤 高志, Takashi Kamiyama, Hajime Arai. フロート充電時に進行するリチウムイオン電池の劣化要因解析, 第61回 電池討論会, Nov. 2020.
• Kotaro Seki, Atsunori Ikezawa, Hajime Arai. アルカリ水溶液系二機能性多孔質ガス拡散型空気極に形成される反応場に関する考察, 第61回 電池討論会, Nov. 2020.
• Atsunori Ikezawa, Masato Horiuchi, Hajime Arai. オペランドコンフォーカル光学系および X 線回折を用いた酸化亜鉛合剤電極におけるシェイ プチェンジ発現プロセスの解析, 第61回 電池討論会, Nov. 2020.
• Junko Yaguchi, 増野正高, 村上満理奈, Atsunori Ikezawa, Yoshihiro Nishimura, Yuya Akimoto, 下村威, Hajime Arai. コンフォーカル光学系によるハードカーボン負極のOperando観察, 第61回電池討論会, Nov. 2020.
• 伊藤宏, 竹原雅裕, Atsunori Ikezawa, Goro Fukunishi, Hajime Arai, 阿部武志, 石黒恭生. 参照極を有するラミネート型硫化物系全固体リチウムイオン電池の挙動解析, 第61回電池討論会, Nov. 2020.
• Goro Fukunishi, Atsunori Ikezawa, TAKEYOSHI OKAJIMA, FUSAO KITAMURA, Kouta Suzuki, Masaaki Hirayama, Ryoji KANNO, Hajime Arai. 還元型チタン酸リチウム参照極を用いる全固体電池用電極のインピーダンス測定と解析, 第61回 電池討論会, Nov. 2020.
• Tadaaki Nishizawa, Atsunori Ikezawa, Hajime Arai. 水溶液系における金属二硫化物の充放電特性, 第61回 電池討論会, Nov. 2020.
• Atsunori Ikezawa, Masato Horiuchi, Hajime Arai. コンフォーカル光学系およびX線回折を用いた亜鉛負極充放電挙動のOperando観察, 第87回電気化学会, Mar. 2020.
• Hajime Arai, Atsunori Ikezawa, 正代尊久, 斉藤景一, 米村雅雄, Takashi Saito, Takashi Kamiyama. 中性子回折によるバックアップ用電池の経時変化観察, 第87回電気化学会, Mar. 2020.
• Masato Horiuchi, Atsunori Ikezawa, Hajime Arai. ラボ観察手法による亜鉛負極充放電挙動のOperando観察, 第60回 電池討論会, Nov. 2019.
• Kento Imai, Atsunori Ikezawa, Shigeki Sato, Hajime Arai. α型水酸化ニッケルの充放電特性とその場解析, 第60回 電池討論会, Nov. 2019.
• Junko Yaguchi, Yoshihiro Nishimura, Yuya Akimoto, Atsunori Ikezawa, Hajime Arai. コンフォーカル光学系によるチタン酸リチウム負極のOperando観察, 第60回 電池討論会, Nov. 2019.
• Atsunori Ikezawa, Goro Fukunishi, Keisuke Shirabe, FUSAO KITAMURA, TAKEYOSHI OKAJIMA, Kouta Suzuki, Masaaki Hirayama, Ryoji KANNO, Hajime Arai. 参照極を用いた全固体電池におけるコバルト酸リチウムの挙動解析, 第60回 電池討論会, Nov. 2019.
• Atsunori Ikezawa, Kotaro Seki, Hajime Arai. アルカリ水溶性における空気極作動状況に関する考察, 2019年電気化学秋季大会, Sept. 2019.
• Masaaki Hirayama, Akira Matsuzaki, Atsunori Ikezawa, Kouta Suzuki, Hajime Arai, Ryoji KANNO, Kazuhisa Tamura. La0.8Sr0.2CoO3エピタキシャル膜の空気極活性と表面構造変化, 2019年電気化学秋季大会, Sept. 2019.
• Junko Yaguchi, Yoshihiro Nishimura, Yuya Akimoto, Atsunori Ikezawa, Hajime Arai. コンフォーカル光学系によるリン酸鉄リチウム正極のOperando観察, 第59回電池討論会, Nov. 2018.

International Conference (Not reviewed / Unknown)

• Wooseok Kang, Manabu Kodama, Shumpei Kubota, Atsunori Ikezawa, Hajime Arai, Shuichiro Hirai. Electrolyte/Electrode Behavior Measurement with Operando X-Ray Microscopy of Zinc-Air Batteries, Third Asian Conference on Thermal Sciences, June 2024.
• Hajime Arai. Improved durability in zinc air batteries, 2nd International Zinc-Air Battery Workshop, Apr. 2018.
• Hajime Arai, Akiyoshi Nakata, Zempachi Ogumi. Recent Advance in Zinc Air Batteries, International Battery Association 2018, Mar. 2018.
• Hajime Arai. Advances in Aqueous Zinc Air Batteries, 68th Annual Meeting of International Society of Electrochemistry, Aug. 2017.
• Hajime Arai. Fast phase transitions in biphasic systems, 8th Lithium Battery Discussion, June 2017.
• Y. Orikasa, H. Yamashige, H. Tanida, Misaki Katayama, K. Kitada, K. Z. Chen, Y. Inada, T. Ohta, Z. Siroma, S. Kato, H. Kinoshita, H. Arai, Z. Ogumi, Y. Uchimoto. Determining Factors for Charge-Discharge Performances of Composite Electrode in Lithium-Ion Battery, Pacific Rim Meeting on Electrochemical and Solid-State Science 2016, Oct. 2016.
• M. Hirayama, K. Suzuki, K. Tamura, T. Minato, H. Arai, Y. Uchimoto, Z. Ogumi, R. Kanno. Lithium Intercalation and Structural Changes at the LiCoO2 Surface Under High Voltage Battery Operation, PRiME2016, Oct. 2016.
• Hajime Arai, Akiyoshi Nakata, Tadashi Kakeya, Masaki Ono, Tomoya Kawaguchi, Katsutoshi Fukuda, Yoshiharu Uchimoto, Zempachi Ogumi. Zinc Electrodes in Water-Organics Electrolytes: In Situ Analysis of Suppressed Shape Change, Pacific Rim Meeting on Electrochemical and Solid-State Science 2016, Oct. 2016.
• Takuya Mori, Yukinori Koyama, Yuki Orikasa, Takeshi Uyama, Takahiro Naka, Hideyuki Komatsu, Keiji Shimoda, Haruno Murayama, Katsutoshi Fukuda, Hajime Arai, Zempachi Ogumi, Yoshiharu Uchimoto. Investigation of Phase Transition Behavior of the Olivine-Type LiFePO4 at Low Temperature Condition By Operando Time-Resolved X-Ray Diffraction, Pacific Rim Meeting on Electrochemical and Solid-State Science 2016, Oct. 2016.
• Koji Kitada, Haruno Murayama, Katsutoshi Fukuda, Hajime Arai, Eiichiro Matsubara, Y. Uchimoto, Zempachi Ogumi. Inhomogeneous-Lithiation/Homogeneous-Delithiation Occurring in the Composite Electrode at Continuous Cycling, Pacific Rim Meeting on Electrochemical and Solid-State Science 2016, Oct. 2016.
• Miwa Murakami, Keiji Shimoda, Hajime Arai, Yoshiharu Uchimoto, Zempachi Ogumi. Structural and Dynamical Origin of Ionic Conductivity As Studied By Solid-State NMR, Pacific Rim Meeting on Electrochemical and Solid-State Science 2016, Oct. 2016.
• Hideyuki Komatsu, Taketoshi Minato, Toshiyuki Matsunaga, Keiji Shimoda, Tomoya Kawaguchi, Katsutoshi Fukuda, Koji Nakanishi, Hajime Arai, Yoshiharu Uchimoto, Eiichiro Matsubara, Zempachi Ogumi. Site-Selective and Element-Selective Analysis of Nickel Substituted Li-Rich Layered Material Using By X-Ray Diffraction and Absorption SpectroscopyDetermining Factors for Charge-Discharge Performances of Composite Electrode in Lithium-Ion Battery, Pacific Rim Meeting on Electrochemical and Solid-State Science 2016, Oct. 2016.
• Masaki Ono, Akiyoshi Nakata, Hajime Arai, Zempachi Ogumi. Improvement of Charge-Discharge Cycling Performances of Zinc Electrode By Using Porous-TiO2-Coated Zinc As a Negative Electrode Active Material, Pacific Rim Meeting on Electrochemical and Solid-State Science 2016, Oct. 2016.
• R. Kanno, S. Taminato, M. Yonemura, S. Shiotani, T. Kamiyama, S. Torii, M. Nagao, Y. I shikawa, K. Mori, T. Fukunaga, Y. Onodera, T. Naka, M. Morishima, Y. Ukyo, D. S. Adipranoto, H. Arai, Y. Uchimoto, Z. Ogumi, K. Suzuki, M. Hirayama. In-Situ and Operando Structure Analysis of Lithium Battery Reactions Using Neutron Scattering, PRiME2016, Oct. 2016.
• Hajime Arai, Akiyoshi Nakata, Koji Nishio, Zempachi Ogumi. Revisiting zinc air batteries: solutions for longer lifetime, 18th International Meeting on Lithium Batteries, June 2016.
• Hajime Arai, Akiyoshi Nakata, Koji Nishio, Zempachi Ogumi. Solubility controlled rechargeable zinc electrodes, 1st International Zinc-Air Battery Workshop, Apr. 2016.
• Hajime Arai. Zinc-Air: the Oldest Innovative Battery, Advanced Automotive Battery Conference Europe 2016, Jan. 2016.
• Himeko Orui, Reiichi Chiba, Kazuhiko Nozawa, Hajime Arai, Ryoji Kanno. Investigation of high temperature stability of nickel- zirconia cermets with added Al2O3, the 62nd Annual Meeting of the International Society of Electrochemistry, 2013.

Domestic Conference (Not reviewed / Unknown)

• Atsunori Ikezawa, Hajime Arai. その場測定による水系電池電極の解析, 第402回電池技術委員会, Sept. 2020.
• Hajime Arai. 蓄電池の現状と次世代電池の動向, 日本学術振興会ナノプローブテクノロジー第167委員会, Dec. 2018.
• 松崎 陽, Kouta Suzuki, Masaaki Hirayama, Hajime Arai, Ryoji KANNO. La0.8Sr0.2CoO3薄膜空気極の安定性および活性, 第8回CSJ化学フェスタ2018, Oct. 2018.
• Junichi Hata, Masaaki Hirayama, Kouta Suzuki, Hajime Arai, Ryoji KANNO. アークプラズマ堆積法を用いたSi系負極膜の合成、構造と電気化学特性評価, 2018年電気化学秋季大会, Sept. 2018.
• Hajime Arai. 亜鉛空気電池を始めとする二次電池の研究開発動向, 電気化学会北陸支部春季大会, June 2018.
• Hajime Arai. 金属空気電池を始めとする革新型蓄電池の動向, 日本化学会第98春季年会, Mar. 2018.
• 中田明良, Hajime Arai, 西尾晃治, 小久見善八, 松原英一郎. 亜鉛−空気二次電池の課題と性能劣化原因の解析, 新電池構想部会第102回講演会, Jan. 2018.
• Hajime Arai. Metal air batteries: Current status and prospects, Battery Japan 2017, Mar. 2017.
• 藤原 直子, 五百蔵 勉, Hajime Arai. 導電性酸化物を用いた非炭素系空気極の可逆空気極特性, 電気化学会第84回大会, Mar. 2017.
• 下田 景士, 大石 昌嗣, 松永 利之, 村上 美和, Hajime Arai, 右京 良雄, Yoshiharu Uchimoto, 小久見 善八. Li2MnO3 正極の初期充電におけるスピネル化の観察, 電気化学会第84回大会, Mar. 2017.
• Hajime Arai. 金属空気電池の研究動向, 新化学技術推進協会講演会, Jan. 2017.
• Hajime Arai. 金属空気電池の研究開発動向, 京都市成長産業創造センターフォーラム, Nov. 2016.
• Hajime Arai. 金属－空気電池の近年の進展, 第191回溶融塩委員会, Sept. 2016.
• Hajime Arai. 電力貯蔵用大型蓄電池の開発状況, 表面技術協会・腐食防食学会 北海道支部セミナー, Aug. 2016.

Other Publication

• Hajime Arai, Atsunori Ikezawa. Electrochemical devices | Electrochemical power sources: Metal–air systems, Elsevier Reference Collection in Chemistry, Molecular Sciences and Chemical Engineering, Elsevier, Jan. 2024.  Official location  
• Hajime Arai. 車載用蓄電池－原理・製造とその利用－, 溶接学会誌, 一般社団法人 溶接学会, Vol. 93, No. 1, p. 60-63, Jan. 2024.
• Hajime Arai. 再生可能エネルギーの貯蔵に期待される金属空気電池, ふぇらむ : 日本鉄鋼協会会報, 一般社団法人 日本鉄鋼協会, Vol. 28, No. 7, p. 460-463, July 2023.
• Hajime Arai. 電池の電気化学 －電池の諸特性を左右する要因を探る―, 科学, 岩波書店, Vol. 93, No. 2, Page 127-131, Feb. 2023.
• Hajime Arai, Atsunori Ikezawa. 電極/セル内反応分布のoperando観察 -光学観察と中性子回析の適用-, CERAMICS JAPAN セラミックス, 公益社団法人日本セラミックス協会, Vol. 58, No. 1, p. 5, Jan. 2023.
• Atsunori Ikezawa, Hajime Arai. 亜鉛空気二次電池とその材料開発, MATERIAL STAGE マテリアルステージ, ㈱技術情報協会, Vol. 22, No. 4, p. 51, July 2022.
• Hajime Arai, Atsunori Ikezawa. 高性能蓄電池の開発とその応用 リチウムイオンから革新型畜電池まで, milsil〔ミルシル〕, 独立行政法人 国立科学博物館, Vol. 15, No. 3, p. 15, May 2022.
• Hajime Arai, Atsunori Ikezawa. リチウムイオン電池用三元系正極材料の反応分布の解析(2), 立命館大学SRセンター 成果報告書, July 2021.
• Hajime Arai, Atsunori Ikezawa. リチウムイオン電池用三元系正極材料の反応分布の解析, 立命館大学SRセンター 成果報告書, July 2021.
• Hajime Arai, Atsunori Ikezawa. 亜鉛空気電池の特徴・課題と対策, 機能材料, (株)シーエムシー出版, Vol. 40, No. 8, Page 58, Aug. 2020.
• Hajime Arai, Atsunori Ikezawa. 金属空気電池の作動原理と研究動向, 成形加工, May 2020.
• Hajime Arai. 全固体電池・空気電池を中心とする新型蓄電池の動向と解析技術, 月刊車載テクノロジー, Vol. 7, No. 1, pp. 32-36, Oct. 2019.
• Hajime Arai. 亜鉛空気電池の新展開, ケミカルエンジニアリング, Vol. 63, No. 9, p. 689-692, Sept. 2018.
• Hajime Arai. 亜鉛空気電池の開発動向と展望, 金属, Vol. 88, p. 35-40, Apr. 2018.
• Hajime Arai. 亜鉛の大規模蓄電池への適用, 鉛と亜鉛, Vol. 290, p. 62-68, Apr. 2018.
• 小久見善八, Hajime Arai, 中田明良, 掛谷忠司, 小野正樹, 新倉順二. 亜鉛－空気電池の亜鉛極サイクル性改善に向けて, 電池技術, Vol. 28, pp. 158-164, Dec. 2016.
• Hajime Arai, 中田明良. 金属空気電池の研究開発動向, 電気評論, Vol. 634, pp. 29, Dec. 2016.
• Hajime Arai, 中田明良. 亜鉛空気電池の耐久性向上：挙動観察と改善, FINE CERAMICS REPORT, Vol. 34, pp. 92-95, 2016.
• Hajime Arai, 中田明良. 金属－空気電池の近年の進展, 溶融塩および高温化学, Vol. 59, pp. 95-99, 2016.

Patent

• Hajime Arai, Atsunori Ikezawa. 水溶液系二次電池用電極、及び水溶液系二次電池. Patent. Published. 国立大学法人東京工業大学. 2022/08/19. PCT/JP2022/031338. 2023/03/02. WO 2023/026972. 2023.
• Hajime Arai, Atsunori Ikezawa. 二次電池. Patent. Published. 国立大学法人東京工業大学, トヨタ自動車株式会社. 2022/03/10. 特願2022-037515. 2023/09/22. 特開2023-132287. 2023.
• Hajime Arai, Atsunori Ikezawa. 水溶液系二次電池用電極、及び水溶液系二次電池. Patent. Published. 国立大学法人東京工業大学. 2020/11/04. 特願2020-184288. 2022/05/18. 特開2022-074335. 2022.
• Hajime Arai, Atsunori Ikezawa. 金属空気電池. Patent. Registered. 国立大学法人東京工業大学, 日本電信電話株式会社. 2020/08/19. 特願2020-138396. 2022/03/04. 特開2022-034627. 特許第7417226号. 2024/01/10 2024.
• Hajime Arai, Atsunori Ikezawa. 亜鉛空気電池. Patent. Published. 国立大学法人東京工業大学, 日本電信電話株式会社. 2019/07/26. 特願2019-137890. 2021/02/18. 特開2021-022472. 2021.
• Ryoji KANNO, Hajime Arai, Masaaki Hirayama, Kouta Suzuki, Jiro Nakamura. 電池用負極. Patent. Published. 国立大学法人東京工業大学, 日本電信電話株式会社. 2018/04/26. 特願2018-085150. 2019/10/31. 特開2019-192525. 2019.

Degree

• A STUDY ON LAYERED MATERIALS AS POSITIVE ELECTRODES FOR LITHIUM SECONDARY BATTERIES,  Thesis,  Doctor (Engineering),  Kyoto University,  1998/01/--, 

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