A High Precision Study of the Coulombic Efficiency of Li-Ion Batteries

被引：143
|
作者：
Smith, A. J. [1 ]
Burns, J. C. [1 ]
Dahn, J. R. [1 ]
机构：
[1] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 3J5, Canada
来源：
ELECTROCHEMICAL AND SOLID STATE LETTERS | 2010年 / 13卷 / 12期
基金：
加拿大自然科学与工程研究理事会;
关键词：
CELLS;
D O I：
10.1149/1.3487637
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The capacity loss and coulombic efficiency of LiCoO(2), LiFePO(4), and LiMn(2)O(4)/graphite commercial Li-ion batteries have been examined using high precision coulometry. The cells were charged and discharged at different C rates and temperatures to observe trends in the aging of cells. The experiments show that time, not cycle count, is the dominant contributor to the coulombic inefficiency of Li-ion batteries cycled at low rates. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3487637] All rights reserved.
引用
收藏
页码：A177 / A179
页数：3
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