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BQ40Z50手册的QMAX是什么,电池容量扩大

Other Parts Discussed in Thread: BQ40Z50

周末在家看手册是时候,被这个QMAX搞得迷迷糊糊 的,

The bq40z50 updates the no-load full capacity (QMax) when two open circuit voltage (OCV) readings are
taken.

Measurements of OCV and charge integration determine chemical state-of-charge and Chemical Capacity
(QMax)

上面两段中都有解释,但不一样,不知道该怎么理解,

还有电池容量扩大,除了修改,design capacity 和QMAX cell 0 1 2 3 以外,要不要改电池的阻抗,,还有手册里面有一个词  Ra  是该怎么解释?

  • Qmax 更新的不是指电芯的最低容量, 反而指的是电芯所含有的最大极限化学总容量。如果电芯从满充(taper current = 0),并且极其微小的电流一直放电0V的能够放出来的总容量,化学意义上的总容量。

    Ra是电池的阻抗,不需要手动修改,full learning以后会update QMAX和Ra- table