期刊
NANO LETTERS
卷 13, 期 9, 页码 4158-4163出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl401776d
关键词
Solid electrolyte interphase; SEI formation; irreversible capacity; prelithiation
类别
资金
- U.S. Government
- Intelligence Community Postdoctoral Research Fellowship Program through Office of the Director of National Intelligence
Stabilized lithium metal powder (SLMP) has been applied during battery assembly to effectively prelithiate high capacity (1500-2500 mAh/g) silicon-carbon nanotube (Si-CNT) anodes, eliminating the 20-40% first cycle irreversible capacity loss. Pressure-activation of SLMP is shown to enhance prelithiation and enable capacity matching between Si-CNT anodes and lithium nickel cobalt aluminum oxide (NCA) cathodes in full batteries with minimal added mass. The prelithiation approach enables high energy density NCA/Si-CNT batteries achieving > 1000 cycles at 20% depth-. of-discharge.
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