期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 61, 期 38, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202207353
关键词
Non-Alkaline Electrolyte; Operation Stability; Zinc Hydroxyacetate Dihydrate; Zinc-Air Batteries
资金
- BMBF (Federal Ministry of Education and Research) [03XP0249, 03XP0110A]
- University of Electronic Science and Technology of China [A1098531023601355]
This study demonstrates a non-alkaline zinc acetate electrolyte for long-term operation of electrically rechargeable zinc-air batteries without special cell engineering. The reversible formation/decomposition of zinc hydroxyacetate dihydrate is revealed using various electrochemical and analytical techniques. The carbon-based air cathode is modified to enhance its hydrophilic surface and improve energy efficiency. This work provides new insight into effective electrolyte design for long-term operation of zinc-air batteries.
Electrically rechargeable zinc-air batteries attract extensive research interests due to their potentially high energy density and low cost but suffer from chemical instability and poor electrochemical reversibility caused by the corrosive nature of the conventional alkaline electrolyte. Here we demonstrate a non-alkaline zinc acetate electrolyte for electrically rechargeable zinc-air batteries with long-term operation stability (>600 hours) in ambient air without any special cell engineering. The unique battery chemistry with reversible formation/decomposition of zinc hydroxyacetate dihydrate is systematically revealed using diversified electrochemical and analytical techniques. Furthermore, the carbon-based air cathode is modified towards a hydrophilic surface to increase the energy efficiency. This work provides new insight on effective electrolyte design to achieve long-term operation zinc-air batteries.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据