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中文摘要：
针对LiFePO_4动力电池,设计了循环测试工步,在不同环境温度（20、40℃）下,利用不同充放电倍率（0.5C、1C）,不同的充放电深度,对两个厂家不同型号的电池进行循环测试,以探求LiFePO4动力电池在不同工作条件下的容量衰减规律。实验结果表明,在电池充分化成的前提下,工作环境温度是决定电池容量衰减速度的主要因素。
英文摘要：
To find the pattern of capacity fading, two models of LiFePO4 power battery cells were tested under different temperature（20,40 ℃） with different C-rates（0.5C、1C） and different Do Ds. For this purpose, steps of testing were specially designed. Experimental results show that after the formation of cells, temperature is the main factor to determine the speed of capacity fading.
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