Experimental study on thermal characteristics of LiFePO_4 power batteries  

作　　者：孙逢春 

机构地区：[1]Department of Vehicular Engineering,School of Mechatical Engineering,Beijing Institute of Technology

出　　处：《High Technology Letters》2010年第4期331-336,共6页高技术通讯（英文版）

基　　金：Supported by the National High Technology Research and Development Programme of China (No. 2006AA11A192)

摘　　要：As an important high-energy chemical power source, lithium-ion power batteries come up to application problems of thermal performance, such as extended temperature range and high power charge ＆ discharge. LiFeP04 battery is applied and developed well recently, its charge and discharge experiment at different temperatures and hybrid pulse power characterization （HPPC） test are analyzed, and the optimal temperature range of LiFeP04 battery is put forward. In order to provide experimental suggestion of power battery application and its thermal management, internal resistance, influencing factor of electromotive force and entropy change state of charge （SOC）, battery thermal characteristic of different charge ＆ discharge rates are summarized.As an important high-energy chemical power source,lithium-ion power batteries come up to applicationproblems of thermal performance,such as extended temperature range and high power charge & discharge.LiFePO_4 battery is applied and developed well recently,its charge and discharge experiment atdifferent temperatures and hybrid pulse power characterization (HPPC) test are analyzed,and the optimaltemperature range of LiFePO_4 battery is put forward.In order to provide experimental suggestion of powerbattery application and its thermal management,internal resistance,influencing factor of electromotiveforce and entropy change state of charge (SOC),battery thermal characteristic of different charge & dischargerates are summarized.

关 键 词：LIFEPO4 power battery thermal characteristic internal resistance 

分 类 号：TM911[电气工程—电力电子与电力传动]