Modified electrochemical parameter estimation of NCR18650BD battery using implicit finite volume method

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• 作者：T.R. Ashwin ^{A.T.Rajan@warwick.ac.uk} ; A. McGordon ; W.D. Widanage ; P.A. Jennings ; ^{Paul.Jennings@warwick.ac.uk}
• 关键词：Lithium-ion battery ; Electrochemical model ; Pseudo two dimensional model ; Parameter estimation
• 刊名：Journal of Power Sources
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：341
• 期：Complete
• 页码：387-395
• 全文大小：2111 K
• 卷排序：341

文摘

Method to parametrise P2D electrochemical model for any cell chemistry. Numerical expression to calculate OCV+ from the discharge voltage. Butler-Volmer equation is modified to a quadratic equation improving the efficiency. The model results improve on the accuracy reported in the previous literature.