锌
燃料电池
氧化还原
可扩展性
功率(物理)
材料科学
环境科学
计算机科学
化学工程
工程类
冶金
物理
量子力学
数据库
作者
Yuxi Song,Lingchao Xia,Manohar Salla,Shibo Xi,Weihui Fu,Wanwan Wang,Mingsheng Gao,Shaofen Huang,Shiqiang Huang,Xun Wang,Xun Yu,Tong Niu,Yuqi Zhang,Shijie Wang,Ming‐Yong Han,Meng Ni,Qing Wang,Hang Zhang
标识
DOI:10.1002/anie.202314796
摘要
Zinc‐air batteries (ZABs) have attracted considerable attention for their high energy density, safety, low noise, and eco‐friendliness. However, the capacity of mechanically rechargeable ZABs was limited by the cumbersome procedure for replacing the zinc anode, while electrically rechargeable ZABs suffer from issues including low depth of discharge, zinc dendrite and dead zinc formation, and sluggish oxygen evolution reaction, etc. To address these issues, we report a hybrid redox‐mediated zinc‐air fuel cell (HRM‐ZAFC) utilizing 7,8‐dihydroxyphenazine‐2‐sulfonic acid (DHPS) as the anolyte redox mediator, which shifts the zinc oxidation reaction from the electrode surface to a separate fuel tank. This approach decouples fuel feeding and electricity generation, providing greater operation flexibility and scalability for large‐scale power generation applications. The DHPS‐mediated ZAFC exhibited a superior peak power density of 0.51 W/cm2 and a continuous discharge capacity of 48.82 Ah with ZnO as the discharge product in the tank, highlighting its potential for power generation.
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