Prelithiation of Silicon-Carbon Nanotube Anodes for Lithium Ion Batteries by Stabilized Lithium Metal Powder (SLMP)

被引：328
|
作者：
Forney, Michael W. [1 ]
Ganter, Matthew J. [1 ]
Staub, Jason W. [1 ]
Ridgley, Richard D. [3 ]
Landi, Brian J. [1 ,2 ]
机构：
[1] Rochester Inst Technol, NanoPower Res Labs, Rochester, NY 14623 USA
[2] Rochester Inst Technol, Rochester, NY 14623 USA
[3] US Govt, Washington, DC USA
来源：
NANO LETTERS | 2013年 / 13卷 / 09期
关键词：
Solid electrolyte interphase; SEI formation; irreversible capacity; prelithiation; IMPEDANCE SPECTROSCOPY; FREESTANDING ANODES; POTENTIAL STEP; ELECTRODES; PAPER; THIN; INSERTION; CAPACITY;
D O I：
10.1021/nl401776d
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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.
引用
收藏
页码：4158 / 4163
页数：6
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