期刊
JOURNAL OF POWER SOURCES
卷 235, 期 -, 页码 226-233出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2013.02.028
关键词
Rechargeable Li-air batteries; Gas diffusion electrode; Air cathode; Nano-structured material; Energy storage
资金
- EPSRC
The rechargeable Li-air battery has a key role to play for future renewable energy and electric vehicle industries due to its high energy density. However, it suffers from cycling fading and low rate capability, mainly caused by the problem of cathode. Here we create a nanoporous three-dimensional gas diffusion electrode to replace a conventional composite electrode, prolonging battery cycle life over 200 cycles with higher rate capabilities and high capacities. Electrochemical and spectroscopic characterisations indicate the mechanism for the improvement. (C) 2013 Elsevier B.V. All rights reserved.
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