亜鉛空気電池
Zinc-Air Battery
Embedded Files
亜鉛空気電池の研究概要/Reserch of Zinc-Air battery
亜鉛空気電池：安価で持続可能な電力供給源
空気中の酸素を利用する亜鉛空気電池は，高容量かつ軽量で，持続可能な社会を支える次世代電池として期待されています．しかし，充電の難しさが実用化への課題です．当研究室では，この課題克服のため，オペランドX線計測などの最先端技術を駆使し，電池内部で発生する現象を詳細に解明しています．高速充放電時のバブル発生やデンドライト成長，電解液流動の影響などを観察・解析することで，大容量かつ長寿命な充電式亜鉛空気電池の実用化を目指します．
Zinc-Air Battery: An Affordable and Sustainable Power Source
Zinc-air batteries, which utilize oxygen from the air, are promising as next-generation batteries due to their high capacity and light weight, supporting a sustainable society. However, the difficulty in recharging them remains a practical challenge. To overcome this, our laboratory is employing cutting-edge techniques such as operando X-ray measurements to thoroughly elucidate the phenomena occurring inside the battery. By observing and analyzing, aspects like bubble generation and dendrite growth during high-speed charging and discharging, and the effects of electrolyte flow, we aim for the practical application of high-capacity, long-life rechargeable zinc-air batteries.
代表的な研究論文発表/Representative Research Papers
亜鉛空気電池の充放電過程の
オペランドX線計測
亜鉛空気電池を対象に，高速充放電時の電池内部挙動をオペランド透過X線イメージングにより計測しました．放電時のバブルの発生や，充電時のバブル発生とデンドライト成長の観察に成功し，充放電電圧との関係を明らかにしました．また，充電時にデンドライト成長を引き起こす条件を明らかにしました．
The internal behavior of a zinc-air battery during high-speed charging and discharging was measured by operando transmission X-ray imaging. Bubble generation during discharge and bubble generation and dendrite growth during charging were successfully observed, and the relationship between the charge and discharge voltages was clarified. The conditions that cause dendrite growth during charging were also clarified.
Operando X-Ray Imaging of the Charge-Discharge Behavior of Zinc-Air Batteries
Wooseok KANG, Shumpei KUBOTA, Manabu KODAMA, Atsunori IKEZAWA, Hajime ARAI, Shuichiro HIRAI
Electrochemistry
https://doi.org/10.5796/electrochemistry.24-00053
流動型亜鉛空気電池の
オペランドX線計測
亜鉛空気電池では，高負荷充電時に亜鉛極で水素発生とデンドライト成長をしてしまい，電池性能が低下することが知られています．その解決方法として，電解液を流動させる亜鉛空気電池(フロー型亜鉛空気電池)が提案されています．本研究では，フロー型亜鉛空気電池を対象にX線透過撮影を実施し，電解液流動が水素発生やデンドライト成長に及ぼす影響を明らかにしました．
In zinc-air batteries, hydrogen generation and dendrite growth at the zinc electrode under high charge loads are known to degrade battery performance. As a solution to this problem, a zinc-air battery with flowing electrolyte (flow-type zinc-air battery) has been proposed. In this study, X-ray transmission imaging of a flow-type zinc-air battery was conducted to clarify the effects of electrolyte flow on hydrogen evolution and dendrite growth.
フロー型亜鉛空気電池の負極オペランドX線イメージング
久保田 峻平, KANG Wooseok, 兒玉 学, 池澤 篤憲, 荒井 創, 平井 秀一郎
日本機械学会論文集
Google Sites
Report abuse