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

被引：159

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：

070208 [无线电物理];

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

页码：A177 / A179

页数：3

共 8 条

[1]

Study of life evaluation methods for Li-ion batteries for backup applications [J].

Asakura, K ;

Shimomura, M ;

Shodai, T .

JOURNAL OF POWER SOURCES, 2003, 119 :902-905

[2]

On the capacity fading of LiCoO2 intercalation electrodes:: the effect of cycling, storage, temperature, and surface film forming additives [J].

Aurbach, D ;

Markovsky, B ;

Rodkin, A ;

Levi, E ;

Cohen, YS ;

Kim, HJ ;

Schmidt, M .

ELECTROCHIMICA ACTA, 2002, 47 (27) :4291-4306

[3]

Main aging mechanisms in Li ion batteries [J].

Broussely, M ;

Biensan, P ;

Bonhomme, F ;

Blanchard, P ;

Herreyre, S ;

Nechev, K ;

Staniewicz, RJ .

JOURNAL OF POWER SOURCES, 2005, 146 (1-2) :90-96

[4]

Aging mechanism in Li ion cells and calendar life predictions [J].

Broussely, M ;

Herreyre, S ;

Biensan, P ;

Kasztejna, P ;

Nechev, K ;

Staniewicz, RJ .

JOURNAL OF POWER SOURCES, 2001, 97-8 :13-21

[5]

Markovsky B, 2003, J POWER SOURCES, V119, P504, DOI [10.1016/S0378-7753(03)00274-X, 10.1016/S0378-7753(03)00274-x]

[6]

Calendar life performance of pouch lithium-ion cells [J].

Ramasamy, RP ;

White, RE ;

Popov, BN .

JOURNAL OF POWER SOURCES, 2005, 141 (02) :298-306

[7]

Scott E., 2005, EL SOC M LOS ANG CA, V502

[8]

Precision Measurements of the Coulombic Efficiency of Lithium-Ion Batteries and of Electrode Materials for Lithium-Ion Batteries [J].

Smith, A. J. ;

Burns, J. C. ;

Trussler, S. ;

Dahn, J. R. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2010, 157 (02) :A196-A202

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