车用锂离子电池日历老化实验研究

Asmae El Mejdoubi, H. Gualous, H. Chaoui, G. Alcicek
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引用次数: 8

摘要

锂离子电池在汽车上的应用面临的主要挑战是老化。众所周知,电池老化对电流、温度、放电深度等多种因素都很敏感。这些因素对电池容量的损失以及内阻的增加都有相当大的影响。本文对锂离子电池的老化进行了分析,以预测其失效。对老化的理解可以回溯到运行状态,从而提高可靠性。因此,本研究涉及到LiFePO4电池在不同放电电流和温度下的日历老化实验分析。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental investigation of calendar aging of lithium-ion batteries for vehicular applications
The main challenge with lithium-ion batteries in vehicular applications is aging. It is known that the battery aging is sensitive to various factors such as current, temperature and depth of discharge. These elements have a considerable impact on the loss of the battery's capacity, as well as on the increase of the internal resistance. In this article, we present an analysis of the aging of lithium-ion batteries in order to predict their failures. The comprehension of aging can retroact on the operating conditions in order to improve reliability. Thus, the work carried out involves the experimental analysis of a LiFePO4 battery's calendar aging under different discharge currents and temperatures.
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