The influence of temperature and charge-discharge rate on open circuit voltage hysteresis of an LFP Li-ion battery

被引：0
|
作者：
Barai, Anup [1 ]
Widanage, W. Dhammika [1 ]
McGordon, Andrew [1 ]
Jennings, Paul [1 ]
机构：
[1] Univ Warwick, WMG, Coventry CV4 7AL, W Midlands, England
来源：
2016 IEEE TRANSPORTATION ELECTRIFICATION CONFERENCE AND EXPO (ITEC) | 2016年
基金：
“创新英国”项目;
关键词：
LITHIUM; IMPEDANCE; STATE; MECHANISMS;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Open circuit voltage (OCV) is a crucial parameter in an equivalent circuit model (ECM). The path dependence of OCV is a distinctive characteristic of a Li-ion battery; this is known as OCV hysteresis. In this manuscript the influence of temperature and charge/discharge rate on OCV hysteresis has been identified. OCV hysteresis was found to be 13mV higher at 0 degrees C while remaining unchanged at 45 degrees C compared to the 25 degrees C result. In general, OCV hysteresis was found to be less dependent on charge/discharge rate than temperature. The potential explanations of these results have been reported.
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页数：4
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