Self-discharge of secondary lithium-ion graphite anodes

被引：31

作者：

Wang, CS ^{[1
]}

Zhang, XW

Appleby, AJ

Chen, XL

Little, FE

机构：

[1] Texas A&M Univ, Ctr Electrochem Syst & Hydrogen Res, Texas Engn Expt Stn, College Stn, TX 77843 USA

[2] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA

[3] Texas A&M Univ, Ctr Space Power, Texas Engn Expt Stn, College Stn, TX 77843 USA

来源：

JOURNAL OF POWER SOURCES | 2002年 / 112卷 / 01期

关键词：

self-discharge; graphite anode; Li-ion batteries; solid electrolyte interphase;

D O I：

10.1016/S0378-7753(02)00359-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new method for measuring self-discharge of lithium-ion graphite anodes is reported. First, the anode lithium content is calculated from the open-circuit potential as a function of open-circuit time (OCP versus OCT) using equilibrium potential-composition isotherms. Then, the self-discharge rate is obtained from the differential of lithium content with respect to time on open circuit. The self-discharge rate measured by this means after the first charge-discharge cycle to 0.0 V versus Li/Li+ is largely controlled by the growth of the solid electrolyte interphase (SEI) film, with some influence from stage transformation. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：98 / 104

页数：7

共 10 条

[1] Capacity fade mechanisms and side reactions in lithium-ion batteries [J].