在SCE电动汽车技术中心进行铅酸电池快速充电

N. Pinsky, J. Argueta, T. J. Knipe, V. L. Grosvenor, L. Gaillac, M.H. Merchant, A. Cabrera
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引用次数: 6

摘要

对5家厂商的不同类型VRLA技术进行了快速充电适用性和连续快速充电对循环寿命的影响进行了评价和比较。测试在实验室工作台包和车载包上进行。脉冲电流型算法是内部开发的,并针对每个电池组进行了优化。这些包在部分充电状态(PSOC)模式下进行生命周期。研究发现,从初始的20% SOC开始,在3C到4.6C的充电速率下,在13到17分钟的时间内,可以实现70%到80%的充电返回。对选定的铅酸电池进行快速充电,可以在不显著降低循环寿命的情况下延长电动汽车的日续航里程。
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Fast charge of lead acid batteries at the SCE EV Tech Center
Different types of VRLA technologies from five manufacturers were evaluated and compared for their suitability for fast charging and the effect of successive fast charging on cycle life. Testing was performed on both laboratory bench packs and in vehicle packs. Pulsed current type algorithms were developed in-house and optimized for each battery pack. The packs were life cycled in a partial state of charge (PSOC) mode. It was found that a 70 to 80% charge return could be accomplished, starting from an initial 20% SOC, in a range of 13 to 17 minutes at 3C to 4.6C charge rates. Fast charging of selected lead acid batteries has shown the favorable capability of extending daily EV range without a significant reduction in cycle life.
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