Traction battery (40 Ah LiFePO4) recovery after long-term short circuit

M. Frivaldský, Juraj Adamec, M. Danko, P. Drgona
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引用次数: 1

Abstract

Presented paper shows possibilities related to procedure proposal on how to recover damaged lithium-ion battery cell after long-term short-circuit. For this purpose, initially the short-circuit was applied on selected type of traction LiFePO4 cell. After it, the visible damage was identified from mechanical and electrical point of view. Next, experimental setup for automated application of proposed recovery method was realized, while battery under test undergoes full-range regeneration procedure. As a verification of the proposed regeneration algorithm, the test of delivered Ah for various discharging currents was realized. Received results have been compared to the new cell, which undergone also the test of delivered Ah. From the final evaluation is seen, that proposed procedure is able to recover damaged cell up to 80% of its full capacity.
牵引电池(40 Ah LiFePO4)长期短路后恢复
介绍了锂离子电池在长期短路后如何修复受损电芯的工艺方案。为此,首先将短路应用于选定类型的牵引式LiFePO4电池。在此之后,从机械和电气的角度确定了可见的损坏。其次,实现了自动应用所提出的回收方法的实验设置,而被测电池则进行了全方位的再生过程。为了验证所提出的再生算法,实现了不同放电电流下的输出Ah测试。收到的结果已经与新细胞进行了比较,新细胞也经历了递送Ah的测试。从最后的评估中可以看出,所提出的程序能够恢复受损细胞高达80%的全部容量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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