期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 60, 期 28, 页码 15281-15285出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202104171
关键词
electrolyte; low temperature; solvation structure; zinc-air batteries
资金
- National Key Research and Development Program [2016YFA0200102]
- Natural Scientific Foundation of China [21825501]
- Tsinghua University Initiative Scientific Research Program
- Tsinghua National Laboratory for Information Science and Technology
This study reveals the potential advantages of zinc-air batteries for low-temperature energy storage and demonstrates improved performance by regulating the electrolyte structure. The stable performance achieved under extreme low temperatures provides inspiration for the development of advanced battery systems for extreme working conditions.
Efficient energy storage at low temperatures starves for competent battery techniques. Herein, inherent advantages of zinc-air batteries on low-temperature electrochemical energy storage are discovered. The electrode reactions are resistive against low temperatures to render feasible working zinc-air batteries under sub-zero temperatures. The relatively reduced ionic conductivity of electrolyte is identified as the main limiting factor, which can be addressed by employing a CsOH-based electrolyte through regulating the solvation structures. Accordingly, 500 cycles with a stable voltage gap of 0.8 V at 5.0 mA cm(-2) is achieved at -10 degrees C. This work reveals the promising potential of zinc-air batteries for low-temperature electrochemical energy storage and inspires advanced battery systems under extreme working conditions.
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