车用动力电池“呼吸效应”的研究*

doi:10.19562/j.chinasae.qcgc.2018.012.006

汽车工程 ›› 2018, Vol. 40 ›› Issue (12): 1413-1417.doi: 10.19562/j.chinasae.qcgc.2018.012.006

车用动力电池“呼吸效应”的研究^*

徐成善^1,2, 卢兰光^2,3, 欧阳明高², 江发潮¹

1.中国农业大学工学院,北京 100083;
2.清华大学,汽车安全与节能国家重点实验室,北京 100084;
3.北京电动车辆协同创新中心,北京 100081

收稿日期:2017-10-31 出版日期:2018-12-25 发布日期:2018-12-25
通讯作者: 江发潮,教授,E-mail:jiangfachao@163.com
基金资助:
国家自然科学基金(U1564205)和国家国际科技合作专项(2016YFE0102200)资助

A Study on ‘Breathing Effect’ of Traction Batteries for Electric Vehicles

Xu Chengshan^1,2, Lu Languang^2,3, Ouyang Minggao², Jiang Fachao¹

1.College of Engineering, China Agricultural University, Beijing 100083;
2.Tsinghua University, State Key Laboratory of Automotive Safety and Energy, Beijing 100084;
3.Collaborative Innovation Center for Electric Vehicles, Beijing 100081

Received:2017-10-31 Online:2018-12-25 Published:2018-12-25

摘要/Abstract

摘要： 车用锂离子动力电池在充放电过程中由于电极材料中锂离子的脱出和嵌入而产生的“呼吸效应”受电池材料、环境温度和充放电倍率等的影响较大,且与电池的健康状态有密切关系。本文中为一款车用锂离子电池设计并制造了电池厚度的测试装置,用来研究电池在不同倍率、不同温度下的“呼吸效应”。结果表明,倍率越大,温度越低,则电池的“呼吸效应”越弱。

关键词: 呼吸效应, 脱嵌锂, 充放电倍率, 温度

Abstract: ‘Breathing effect’ appearing in vehicle lithium traction battery during its charge and discharge due to the intercalation and de-intercalation of lithium ion is greatly affected by electrode material, ambient temperature and charging and discharging current rates as well as the battery state of health. In this paper, a test rig for measuring the thickness of a Li-ion battery is designed and built to study the ‘breathing effect’ of battery under different current rates and temperatures. The results show that the higher current rate and lower temperature result in the weaker breathing effect of battery.

Key words: breathing effect, lithium intercalation and de-intercalation, charge and discharge current rate, temperature

徐成善, 卢兰光, 欧阳明高, 江发潮. 车用动力电池“呼吸效应”的研究^*[J]. 汽车工程, 2018, 40(12): 1413-1417.

Xu Chengshan, Lu Languang, Ouyang Minggao, Jiang Fachao. A Study on ‘Breathing Effect’ of Traction Batteries for Electric Vehicles[J]. , 2018, 40(12): 1413-1417.

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车用动力电池“呼吸效应”的研究^*

A Study on ‘Breathing Effect’ of Traction Batteries for Electric Vehicles

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