鋰電池的狀態主要有三個，一個是工作放電狀態，一個是停止工作的充電狀態，最后一個是存儲時的狀態，這些狀態下都會導致鋰電池組之間的電芯存在電(dian)量差(cha)的(de)問題(ti)，而電(dian)量差(cha)過大和時間過久的(de)話，會嚴重影響電(dian)池的(de)使用壽命，所以需要鋰電(dian)池保護板來主動對電(dian)芯做平(ping)衡(heng)處理。

鋰離子電池組充電主動平(ping)衡法的解決(jue)方(fang)法

主動平(ping)衡拋棄了(le)被(bei)動平(ping)衡消耗電(dian)(dian)流的方(fang)法，改成(cheng)了(le)傳(chuan)(chuan)送電(dian)(dian)流的方(fang)法。負責電(dian)(dian)荷傳(chuan)(chuan)送的設備是一(yi)種電(dian)(dian)源轉換(huan)器，這種設備使鋰離子電(dian)(dian)池(chi)組內的小(xiao)電(dian)(dian)池(chi)無論是在充電(dian)(dian)、放電(dian)(dian)還(huan)是閑置狀(zhuang)態都(dou)能傳(chuan)(chuan)送電(dian)(dian)荷，從而(er)使小(xiao)電(dian)(dian)池(chi)之間可經常保持動態平(ping)衡。

由于主動平(ping)(ping)衡方法的(de)(de)電(dian)荷傳送(song)效率極高(gao)，因(yin)此，可以(yi)供應較高(gao)的(de)(de)平(ping)(ping)衡電(dian)流，這意味著(zhu)，這種方法在鋰離子電(dian)池(chi)組充(chong)電(dian)、放電(dian)和閑置(zhi)時的(de)(de)平(ping)(ping)衡能力更強。

1、快(kuai)速充電(dian)(dian)(dian)能(neng)力強：主動平衡(heng)功能(neng)可(ke)以(yi)使鋰離子電(dian)(dian)(dian)池(chi)組(zu)內(nei)各小電(dian)(dian)(dian)池(chi)更(geng)快(kuai)地達(da)到平衡(heng)，所以(yi)，快(kuai)速充電(dian)(dian)(dian)的安全性更(geng)高(gao)，適宜(yi)于更(geng)大電(dian)(dian)(dian)流的高(gao)倍率充電(dian)(dian)(dian)方式。

2、閑置時(shi)：即(ji)使各(ge)個(ge)(ge)小(xiao)(xiao)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)已達到了充電(dian)(dian)(dian)時(shi)的平(ping)衡狀(zhuang)態，但由于溫度(du)梯度(du)不同，有的小(xiao)(xiao)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)內(nei)部溫度(du)高(gao)些，有的小(xiao)(xiao)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)內(nei)部低些，也會(hui)令每個(ge)(ge)小(xiao)(xiao)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的內(nei)部漏電(dian)(dian)(dian)速度(du)不同，試驗數據(ju)顯(xian)示(shi)，電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)每升高(gao)10℃，漏電(dian)(dian)(dian)率便上(shang)升一(yi)倍，主動(dong)平(ping)衡功能(neng)可確(que)保(bao)閑置鋰(li)離(li)(li)子(zi)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)組內(nei)的小(xiao)(xiao)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)不斷地(di)重新獲得平(ping)衡，這(zhe)有利于電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)組內(nei)儲(chu)存的電(dian)(dian)(dian)量(liang)能(neng)被充分利用，使電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)組工作能(neng)力(li)結(jie)束時(shi)，單個(ge)(ge)的小(xiao)(xiao)鋰(li)離(li)(li)子(zi)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)殘余(yu)電(dian)(dian)(dian)量(liang)最小(xiao)(xiao)。

3、放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)：沒有(you)放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)力(li)達到100%的(de)(de)鋰(li)離(li)(li)(li)(li)(li)(li)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)組，這是因為，一組鋰(li)離(li)(li)(li)(li)(li)(li)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)工作能(neng)(neng)力(li)的(de)(de)結束是由某一個(ge)最先放完電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)小鋰(li)離(li)(li)(li)(li)(li)(li)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)決定(ding)的(de)(de)，并不能(neng)(neng)保證所有(you)的(de)(de)小鋰(li)離(li)(li)(li)(li)(li)(li)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)能(neng)(neng)同時(shi)(shi)達到放完電(dian)(dian)(dian)(dian)(dian)(dian)(dian)量。相(xiang)反，會有(you)個(ge)別(bie)的(de)(de)小鋰(li)離(li)(li)(li)(li)(li)(li)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)保持有(you)未(wei)用(yong)的(de)(de)殘(can)余電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)。通過主動平(ping)衡(heng)方法，鋰(li)離(li)(li)(li)(li)(li)(li)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)組在放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)，內部的(de)(de)大容(rong)量鋰(li)離(li)(li)(li)(li)(li)(li)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)會將電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)分配(pei)給(gei)小容(rong)量鋰(li)離(li)(li)(li)(li)(li)(li)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)，因此，小容(rong)量鋰(li)離(li)(li)(li)(li)(li)(li)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)也(ye)可以充分放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，而且，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)組內不會有(you)殘(can)余的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)留下，具(ju)備主動平(ping)衡(heng)功能(neng)(neng)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)組擁有(you)較大的(de)(de)實際儲電(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(即，可以釋放出更接近(jin)于(yu)標稱(cheng)容(rong)量的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng))。