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木虫 (小有名气)

[求助] 锂离子电池容量保持率及恢复率的电化学机理讨论

如果一款电芯储存半年后,保持率90%,恢复率96%。这样子的话存储过程中损失的不可逆容量应该是4%,可逆容量6%。
不可逆容量还好理解,可逆容量的话,开路情况下,直接的理解就是正负极之间应存在电子通道配合其离子通道自放电,但是这种电子通道在正负极之间貌似又不太合理(正常电芯)。另外一种理解,就是开路情况下,负极锂离子移向正极的同时,剩下的电子发生副反应形成阴离子,而移向正极的锂离子嵌入置换出阳离子,阳离子迁移到负极与阴离子发生结合。

以上我的一点见解,希望各位高人指点,不甚感谢!!
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