淡出
石墨
微型多孔材料
电解质
电极
电池(电)
材料科学
锂(药物)
锂离子电池
化学工程
动力学
离子
分析化学(期刊)
化学
复合材料
热力学
功率(物理)
色谱法
计算机科学
物理
工程类
物理化学
有机化学
内分泌学
操作系统
医学
量子力学
作者
Henrik Ekström,Göran Lindbergh
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2015-01-01
卷期号:162 (6): A1003-A1007
被引量:138
摘要
An aging model for a negative graphite electrode in a lithium-ion battery, for moderate currents up to 1C, is derived and fitted to capacity fade experimental data. The predictive capabilities of the model, using only four fitted parameters, are demonstrated at both 25°C and 45°C. The model is based on a linear combination of two current contributions: one stemming from parts of the graphite particles covered by an intact microporous solid-electrolyte-interface (SEI) layer, and one contribution from parts of the particles were the SEI layer has cracked due to graphite expansion. Mixed kinetic and transport control is used to describe the electrode kinetics.
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