磷酸铁锂动力电池动态SOC状态下的分选

吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (增刊2): 331-333.

磷酸铁锂动力电池动态SOC状态下的分选

李杨, 王永武, 张火成, 张娜, 邹玉峰

天津力神电池股份有限公司, 天津300384

收稿日期:2011-05-27 出版日期:2011-09-30 发布日期:2011-09-30
作者简介:李杨(1986),男,研发工程师,硕士。研究方向:高功率型锂离子动力电池。E-mail:heizi612@163.com
基金资助:
“863”国家高技术研究发展计划项目(2006AA11A154)

Investigation of sorting with dynamic state of charge of lithium-iron-phosphate power battery

LI Yang, WANG Yong-wu, ZHANG Huo-cheng, ZHANG Na, ZOU Yu-feng

Tianjin Lishen Battery Joint-Stock Co., Ltd., Tianjin 300384, China

Received:2011-05-27 Online:2011-09-30 Published:2011-09-30

摘要/Abstract

摘要：

磷酸铁锂动力电池是以单体电池在50%SOC状态下的静态开路电压、交流内阻和容量为标准进行分选配组的,但在实际使用过程中电池管理系统所检测到的是单体电池的动态电压,而动态电压与静态开路电压并不一致,因而实际结果并不理想。本文在此基础上,以单体电池脉冲过程中的动态电压差为参数进行分选,并对分选后的多块电池组装后进行测试,取得了良好的结果。

关键词: 储能技术, 锂离子动力电池, SOC, 动态分选

Abstract:

The power battery is sorted which takes the open circuit voltage,the ACIR and the capacity as standard on 50%SOC static condition,but the battery manage system detect the voltage which is dynamic not as same as static voltage,so the actual result is not ideal.Based on this,sorting batteries by taking the dynamic voltage difference under impulse charging and discharging process,then carrying on the test to the battery pack,and obtaining a good result.

Key words: secondary energy, lithium-ion power battery, SOC, dynamic sorting

中图分类号:

TM912.9

李杨, 王永武, 张火成, 张娜, 邹玉峰. 磷酸铁锂动力电池动态SOC状态下的分选[J]. 吉林大学学报(工学版), 2011, 41(增刊2): 331-333.

LI Yang, WANG Yong-wu, ZHANG Huo-cheng, ZHANG Na, ZOU Yu-feng. Investigation of sorting with dynamic state of charge of lithium-iron-phosphate power battery[J]. 吉林大学学报(工学版), 2011, 41(增刊2): 331-333.

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