电极
石墨
背景(考古学)
材料科学
锂(药物)
插层(化学)
化学
电镀(地质)
分析化学(期刊)
无机化学
复合材料
色谱法
物理化学
古生物学
地球物理学
内分泌学
地质学
生物
医学
作者
Claudia Birkenmaier,Bernhard Bitzer,Matthias Harzheim,Andreas Hintennach,Thomas Schleid
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2015-01-01
卷期号:162 (14): A2646-A2650
被引量:78
摘要
The effect of metallic lithium depositing on the negative electrode surface of a carbon-based lithium-ion battery instead of intercalating into the graphitic layers, namely lithium plating, can be assigned to charging at low temperatures and/or high currents. Cell parameters, such as performance and safety, are negatively influenced by this phenomenon. Elemental lithium deposited on the negative electrode requires more space than the intercalated compound and therefore increases the cell volume. Thus, the thickness changes during cycling can be used as a qualitative indicator for lithium plating. In this context, two different non-destructive experimental setups detecting the thickness profiles in situ are presented. Moreover, a quantitative titration technique to determine the exact amount of lithium deposited is established.
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