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铝壳(qiao)电(dian)池在一(yi)定(ding)时间(jian)内的(de)容量是(shi)一(yi)定(ding)的(de)，其(qi)放(fang)电(dian)速率指的(de)是(shi)与常规放(fang)电(dian)作比较，在相同(tong)的(de)时间(jian)内，其(qi)放(fang)电(dian)量是(shi)常规放(fang)电(dian)的(de)几倍(bei)。在不(bu)同(tong)电(dian)流(liu)下(xia)可以释放(fang)的(de)能(neng)量。一(yi)般来说，铝壳(qiao)电(dian)池需(xu)要测试(shi)其(qi)在不(bu)同(tong)恒流(liu)条件下(xia)的(de)放(fang)电(dian)性(xing)能(neng)，那么人们是(shi)如何评估铝壳(qiao)电(dian)池的(de)放(fang)电(dian)倍(bei)率的(de)呢？

当(dang)用(yong)N倍1C容量(liang)的铝壳电(dian)池(chi)(chi)(chi)电(dian)流放(fang)电(dian)时(shi)(shi)，其放(fang)电(dian)容量(liang)大于电(dian)池(chi)(chi)(chi)1C容量(liang)的85%，我们认(ren)为电(dian)池(chi)(chi)(chi)的放(fang)电(dian)速(su)率为N倍。如电(dian)池(chi)(chi)(chi)的容量(liang)为2000mAh，放(fang)电(dian)时(shi)(shi)间为60min，如果使(shi)用(yong)容量(liang)为60000mA的电(dian)池(chi)(chi)(chi)进行放(fang)电(dian)，放(fang)电(dian)时(shi)(shi)间为1.7min，则说明电(dian)池(chi)(chi)(chi)放(fang)电(dian)倍率为30C。

平均电(dian)压(V) =放电(dian)数量(Wh) ÷放电(dian)电(dian)流(A)

中位电(dian)(dian)(dian)压(ya)(V)指的(de)(de)是(shi)总放(fang)电(dian)(dian)(dian)时间为1/2时的(de)(de)电(dian)(dian)(dian)压(ya)。中位电(dian)(dian)(dian)压(ya)也可(ke)以称为放(fang)电(dian)(dian)(dian)平台(tai)，它与铝壳电(dian)(dian)(dian)池(chi)的(de)(de)放(fang)电(dian)(dian)(dian)速率(电(dian)(dian)(dian)流)有(you)关。放(fang)电(dian)(dian)(dian)速率越高，放(fang)电(dian)(dian)(dian)平台(tai)电(dian)(dian)(dian)压(ya)越低。放(fang)电(dian)(dian)(dian)平台(tai)可(ke)以通过计(ji)算电(dian)(dian)(dian)池(chi)的(de)(de)放(fang)电(dian)(dian)(dian)能量(Wh)/放(fang)电(dian)(dian)(dian)容量(Ah)来确定。