Internal Resistance Identification in Vehicle Power Lithium-ion Battery and Application in Lifetime Evaluation

摘要：

According to the characteristic analysis of lithium ion power battery, battery accelerate life test is carried out to obtain the relevant conclusions such as the changing trend of battery ohmic resistance in different conditions. Battery ohmic resistance is consequently set up as the Evaluation Index of lifetime. Battery ohmic resistance equivalent model is established aiming at the real-time identification of lithium-ion battery ohmic resistance. Based on this model, the real-time identification is achieved by the experimental collected data and recursive least squares algorithm. The adoption of battery ohmic resistance identification algorithm can be applied to provide some useful reference for the battery life state estimation.

关键词： Lithium-ion battery Internal resistance Equivalent model Lifetime evaluation

作者: Xuezhe Wei Bing Zhu Wei Xu

作者单位: New Clean Energy Automotive Engineering Center Tongji University Shanghai, China

会议类型: 国际会议

会议名称: 2009 International Conference on Measuring Technology and Mechatronics Automation(ICMTMA 2009)(2009年检测技术与机电自动化国际会议)

会议地点: 张家界

会议语种:英文

页码: 388-392

在线出版日期: 2009-04-11（万方平台首次上网日期，不代表论文的发表时间）