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[交流] 锂离子电池开路电压偏大

请教各位,我的锂离子负极材料(石墨)做成的半电池开路电压达到3.2V,感觉有点大,导致偏大的原因有哪些呢?另外该电池放电到0.05V后,放置一段时间,开路电压又变成3V.,这是因为什么原因呢?
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