剥离(纤维)
电化学
离子
材料科学
锂(药物)
电压
电镀(地质)
高原(数学)
电极
分析化学(期刊)
化学
电气工程
复合材料
色谱法
物理化学
数学
地质学
工程类
内分泌学
数学分析
有机化学
医学
地球物理学
作者
Dongsheng Ren,Kandler Smith,Dongxu Guo,Xuebing Han,Xuning Feng,Languang Lu,Minggao Ouyang,Jianqiu Li
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2018-01-01
卷期号:165 (10): A2167-A2178
被引量:180
摘要
Lithium plating leads to severe capacity fading and possible safety problems in lithium-ion batteries. Thus, non-destructive detection methods for lithium plating are critical for safe and reliable operation of lithium-ion batteries. In this paper, an electrochemical model incorporated with lithium plating and stripping reactions is established to investigate the lithium plating-stripping process at low temperature. The model is validated at different current rates and temperatures and can successfully predict the characteristic voltage plateau during the rest period after low temperature charging. Modeling analysis helps to develop detection method for lithium plating via differential analysis on the voltage plateau. Distinct local minima can be found in the differential voltage curves of the batteries with plated lithium. The time when the local minima occurs in the differential voltage curves exhibits a linear relationship with the amount of reversible lithium, and thus can be applied as a quantitative indicator for detection of lithium plating. The detection of lithium plating based on differential voltage analysis is further extended to the discharge voltage profiles of the batteries after low temperature charging, considering the effects of rest time.
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