期刊
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
卷 151, 期 2, 页码 A196-A203出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.1634273
关键词
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A first principles-based model has been developed to simulate the capacity fade of Li-ion batteries. Incorporation of a continuous occurrence of the solvent reduction reaction during constant current and constant voltage (CC-CV) charging explains the capacity fade of the battery. The effect of parameters such as end of charge voltage and depth of discharge, the film resistance, the exchange current density, and the over voltage of the parasitic reaction on the capacity fade and battery performance were studied qualitatively. The parameters that were updated for every cycle as a result of the side reaction were state-of-charge of the electrode materials and the film resistance, both estimated at the end of CC-CV charging. The effect of rate of solvent reduction reaction and the conductivity of the film formed were also studied. (C) 2004 The Electrochemical Society.
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