鋰(li)電池(chi)組(zu)都會有保護(hu)板，用(yong)來保護(hu)電池(chi)組(zu)的。小編整(zheng)理搜(sou)集了一(yi)些關于鋰(li)電池(chi)保護(hu)板的作(zuo)用(yong)及(ji)原(yuan)理介(jie)紹(shao)資(zi)料，希望可(ke)以幫到您參考。

一、鋰電池保護板的構成

保護板(ban)通(tong)常包(bao)括(kuo)控制(zhi)IC、MOS開關(guan)及(ji)輔助(zhu)器件NTC、ID、存儲器等。其中控制(zhi)IC，在一(yi)切正常的(de)情況下控制(zhi)MOS開關(guan)導(dao)通(tong)，使電(dian)(dian)芯(xin)(xin)與(yu)外電(dian)(dian)路溝(gou)通(tong)，而(er)當電(dian)(dian)芯(xin)(xin)電(dian)(dian)壓或回路電(dian)(dian)流(liu)超過規定值時，它立刻控制(zhi)MOS開關(guan)關(guan)斷，保護電(dian)(dian)芯(xin)(xin)的(de)安全(quan)。

鋰(li)電(dian)(dian)(dian)(dian)池(chi)(chi)保護板是系列鋰(li)電(dian)(dian)(dian)(dian)池(chi)(chi)組的(de)充(chong)放(fang)電(dian)(dian)(dian)(dian)保護，當(dang)完(wan)全充(chong)電(dian)(dian)(dian)(dian)時，可以保證(zheng)單個電(dian)(dian)(dian)(dian)池(chi)(chi)之(zhi)間(jian)的(de)電(dian)(dian)(dian)(dian)壓差小(xiao)于設定(ding)值，實現電(dian)(dian)(dian)(dian)池(chi)(chi)組各電(dian)(dian)(dian)(dian)池(chi)(chi)的(de)均(jun)衡(heng)，從而有效(xiao)提高(gao)串(chuan)聯充(chong)電(dian)(dian)(dian)(dian)模式下(xia)的(de)充(chong)電(dian)(dian)(dian)(dian)效(xiao)果。同時檢測電(dian)(dian)(dian)(dian)池(chi)(chi)組各單體的(de)過(guo)(guo)(guo)壓、欠壓、過(guo)(guo)(guo)流、短路和過(guo)(guo)(guo)熱，保護和延長電(dian)(dian)(dian)(dian)池(chi)(chi)壽命，保護防止每一個單體電(dian)(dian)(dian)(dian)池(chi)(chi)在放(fang)電(dian)(dian)(dian)(dian)過(guo)(guo)(guo)程(cheng)中因過(guo)(guo)(guo)放(fang)電(dian)(dian)(dian)(dian)而損壞。

?二、鋰電池保護板的作用

成品鋰(li)(li)(li)電(dian)(dian)(dian)池(chi)(chi)(chi)主要由鋰(li)(li)(li)電(dian)(dian)(dian)池(chi)(chi)(chi)和(he)保(bao)護(hu)板兩大(da)部分組(zu)成。鋰(li)(li)(li)電(dian)(dian)(dian)池(chi)(chi)(chi)芯主要由正極板、隔板、負極板和(he)電(dian)(dian)(dian)解質組(zu)成;將(jiang)所述正極板、隔膜(mo)和(he)負極板繞繞或疊層(ceng)、封裝(zhuang)，并注入電(dian)(dian)(dian)解液，封裝(zhuang)后(hou)形成電(dian)(dian)(dian)池(chi)(chi)(chi)芯。鋰(li)(li)(li)電(dian)(dian)(dian)池(chi)(chi)(chi)保(bao)護(hu)板的作用很多人(ren)并不知(zhi)道，鋰(li)(li)(li)電(dian)(dian)(dian)池(chi)(chi)(chi)保(bao)護(hu)板，顧(gu)名思義就是(shi)保(bao)護(hu)鋰(li)(li)(li)電(dian)(dian)(dian)池(chi)(chi)(chi)。鋰(li)(li)(li)電(dian)(dian)(dian)池(chi)(chi)(chi)保(bao)護(hu)板的作用是(shi)保(bao)護(hu)電(dian)(dian)(dian)池(chi)(chi)(chi)但不充電(dian)(dian)(dian)，但不流(liu)動，并對(dui)輸出短路進行保(bao)護(hu)。對(dui)于(yu)這個問題，認為鋰(li)(li)(li)電(dian)(dian)(dian)池(chi)(chi)(chi)不需(xu)要保(bao)護(hu)板的人(ren)會(hui)(hui)覺得鋰(li)(li)(li)電(dian)(dian)(dian)池(chi)(chi)(chi)不會(hui)(hui)連接到保(bao)護(hu)板上，保(bao)護(hu)板會(hui)(hui)將(jiang)長期未使用的鋰(li)(li)(li)電(dian)(dian)(dian)池(chi)(chi)(chi)的點(dian)放電(dian)(dian)(dian)。