电池2016，Vol.46Issue(6)：317-320,4.
基于内阻-容量关系分析锂离子电池的老化
Aging analysis of Li-ion battery based on relation of resistance-capacity
摘要
Abstract
The effect degree of seven factors such as galvanostatic charging current (i1),cut-off voltage of charge (U1),environment temperature(θ),potentiostatic charging time (t1),cut-off voltage of discharge (U2),galvanostatic discharging current (i2) and potentiostatic discharging time(t2) on the aging rate of Li-ion battery was studied by using orthogonal design of experiments under galvanostatic potentiostatic (CCCV) charge-discharge protocol:i1 ＞ U1 ＞ θ ≈ t2 ＞ U2 ＞ i2 ＞ t1.A method based on the relation between resistance and capacity was proposed to study battery aging behavior.Battery aging mechanisms were studied by the method of differential voltage analysis(DVA).Battery aging mechanism was mainly affected by i1,U1 and θ.The three dimensional space (i1,U1,θ) was built to predict battery aging mode,its applicability was validated using nine independent tests.关键词
锂离子电池/老化/内阻-容量关系图/三维空间(i1,U1,θ)Key words
Li-ion battery/aging/diagram of resistance-capacity/three dimensional space (i1 , U1 ,θ)分类
信息技术与安全科学引用本文复制引用
王彩娟,苏来锁,宋杨,张剑波..基于内阻-容量关系分析锂离子电池的老化[J].电池,2016,46(6):317-320,4.基金项目
国家质检总局科技计划项目(2014IK202),清华大学汽车安全与节能国家重点实验室开发基金(KF14041) （2014IK202）
