中国电机工程学报Issue(32)：54-61,8.
圆柱形锂离子动力电池放电过程电化学与传热特性研究
Study on Electrochemical and Heat Transfer Characteristics of Cylindrical Lithium-ion Power Battery During Discharge Cycle
摘要
Abstract
The heat generation in a cell has a strong influence on performance and safe operation of Lithium-ion power battery. To study the temperature distribution and heat generation rate of a basic LiFePO4 lithium ion battery at various galvanostatic discharge rates, an electro-thermal mathematical model was developed where the mass, charge, and thermal transport processes were considered, as well as the electrochemical reaction phenomena. The thermal characteristics predicted by the model agreed well with the experimental data. The results indicate that the reversible heat has a larger proportion of total heat generation under a lower discharge rate, while the ohmic heat is dominant under a higher discharge rate. A battery thermal management system is necessary under high discharge rate due to the higher temperature rise.关键词
电动汽车/锂离子动力电池/电化学-热耦合模型/热特性Key words
electric vehicle/lithium-ion power battery/electro-thermal model/thermal characteristics分类
信息技术与安全科学引用本文复制引用
徐蒙,张竹茜,贾力,杨立新..圆柱形锂离子动力电池放电过程电化学与传热特性研究[J].中国电机工程学报,2013,(32):54-61,8.基金项目
国家自然科学基金(50976011)；中央高校基本科研业务费专项资金(2012JBM092)。@@@@Project Supported by National Natural Science Foundation of China (50976011) （50976011）
Fundamental Research Funds for the Central Universities (2012JBM092) （2012JBM092）
