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kevinkermit

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[求助] 电池电压为什么会高? 已有2人参与

锂离子二次电池正极钴酸锂,负极石墨。
恒流充电到3.52V,然后3.52V恒压充电,截止电流到0.02C
流程结束后测电压,电池电压为什么比3.52V高?
求大神解释!@VIMPILE@Gamry-电化学@a88592718
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蓝夜幽痕

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2楼2018-12-29 21:40:32
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tomkk88

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【答案】应助回帖

你实际测试的时候,是有恒压恒流充电的,实际上电压肯定是高的,只是设备强制电压在3.52V,充完了应该是比3.52高,但还是要看电池的组装过程,也有可能计划大,电池本身的问题
3楼2018-12-31 22:14:12
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我我几何

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★ ★ ★ ★ ★ ★ ★ ★ ★ ★
kevinkermit(小毛球代发): 金币+10 2019-05-30 15:29:22
3.52V对钴锂来说算属于低电状态了,如果恒流电流设置的很大,很容易就超过了3.52V。还有,确实要这么准确的话,还是换精度高一点的柜子。
我就想赚金币而已。
4楼2019-05-30 11:56:48
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