期刊
ADVANCED ENERGY MATERIALS
卷 6, 期 10, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201502534
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资金
- Robert A. Welch Foundation [F-1066]
- US Department of Energy, Office of Basic Energy Sciences [DE-SC0005397]
The formation of a solid-electrolyte interphase on the anode surface of an Li-ion battery using an organic liquid electrolyte robs Li+ irreversibly form the cathode on the initial charge if the cells are fabricated in the discharged state. In order to increase the cathode capacity, the use of Li3N as a sacrificial source of Li+ on the initial charge has been evaluated chemically and electrochemically as an additive to an LiCoO2 cathode. Li3N is shown to be chemically stable in a dry atmosphere as small particles with fresh surfaces and can increase the reversible capacities of a full cell without compromising the rate capability of the cells.
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