新能源汽車鋰電池為什么需要PACK可以才能使用

2023/4/6 來源：深圳市樂貝可科(ke)技(ji)有限公司 點擊次數：

鋰(li)電(dian)池(chi)為什么需要PACK可(ke)以(yi)使(shi)用？鋰(li)電(dian)池(chi)PACK是指(zhi)鋰(li)電(dian)池(chi)組(zu)的加工加組(zu)裝，主要是將鋰(li)電(dian)芯、鋰(li)電(dian)池(chi)保護板、連接(jie)片、線材、外殼(ke)、熱縮膜、輔料等通過電(dian)池(chi)PACK工藝組(zu)合加工成終端客戶(hu)需要的產品，客戶(hu)會指(zhi)定形狀、尺寸(cun)、電(dian)壓、電(dian)流、容量及安全協議等。

了解一下鋰電(dian)池為(wei)什么需要(yao)派(pai)才(cai)可(ke)以(yi)使用(yong)。

一、材料屬性決定鋰電池需要加裝保護板使用。因為鋰電池的原材料特性，電池使用過程中過充、過放、過流、過熱、短路等都會對鋰電池產生不可逆損傷，影響鋰電池的使用壽命，甚至造成安全隱患，所以鋰電池在使用過程中需要組裝鋰電池結構件保護板配(pei)套使用。

二(er)、終端產(chan)品所(suo)(suo)需(xu)(xu)(xu)的電(dian)(dian)(dian)(dian)壓(ya)(ya)及容(rong)(rong)量(liang)有差異，需(xu)(xu)(xu)要并串聯組裝。現(xian)在(zai)鋰電(dian)(dian)(dian)(dian)池(chi)生產(chan)工藝三元鋰電(dian)(dian)(dian)(dian)池(chi)標(biao)稱(cheng)電(dian)(dian)(dian)(dian)壓(ya)(ya)3.7伏，磷酸鐵鋰電(dian)(dian)(dian)(dian)池(chi)標(biao)稱(cheng)電(dian)(dian)(dian)(dian)壓(ya)(ya)是3.2伏，單(dan)支電(dian)(dian)(dian)(dian)芯(xin)的電(dian)(dian)(dian)(dian)壓(ya)(ya)及容(rong)(rong)量(liang)只適合(he)小型(xing)數碼產(chan)品，不(bu)能滿足(zu)高電(dian)(dian)(dian)(dian)壓(ya)(ya)、高容(rong)(rong)量(liang)。需(xu)(xu)(xu)求的產(chan)品使用(yong)，所(suo)(suo)以(yi)就需(xu)(xu)(xu)要電(dian)(dian)(dian)(dian)芯(xin)進行(xing)(xing)并聯來增加(jia)容(rong)(rong)量(liang)，需(xu)(xu)(xu)要電(dian)(dian)(dian)(dian)芯(xin)進行(xing)(xing)串聯來增加(jia)電(dian)(dian)(dian)(dian)壓(ya)(ya)。

那么串聯(lian)、并(bing)聯(lian)是如何增加(jia)(jia)電(dian)(dian)(dian)壓(ya)(ya)、增加(jia)(jia)容量(liang)的(de)呢？例如兩(liang)只三元18650,2500毫(hao)(hao)安(an)(an)(an)(an)(an)時(shi)電(dian)(dian)(dian)芯(xin)電(dian)(dian)(dian)壓(ya)(ya)3.7伏(fu)進行電(dian)(dian)(dian)芯(xin)串聯(lian)，電(dian)(dian)(dian)池(chi)(chi)組(zu)電(dian)(dian)(dian)壓(ya)(ya)3.7乘以(yi)(yi)二等于(yu)7.4伏(fu)，容量(liang)2500毫(hao)(hao)安(an)(an)(an)(an)(an)時(shi)不(bu)變(bian)，電(dian)(dian)(dian)池(chi)(chi)組(zu)7.4伏(fu)電(dian)(dian)(dian)壓(ya)(ya)2500毫(hao)(hao)安(an)(an)(an)(an)(an)時(shi)容量(liang)，兩(liang)至三元186502500毫(hao)(hao)安(an)(an)(an)(an)(an)時(shi)電(dian)(dian)(dian)芯(xin)電(dian)(dian)(dian)壓(ya)(ya)3.7伏(fu)進行電(dian)(dian)(dian)芯(xin)并(bing)聯(lian)，電(dian)(dian)(dian)池(chi)(chi)組(zu)電(dian)(dian)(dian)壓(ya)(ya)3.7伏(fu)，容量(liang)2500乘以(yi)(yi)二等于(yu)5000毫(hao)(hao)安(an)(an)(an)(an)(an)時(shi)，電(dian)(dian)(dian)池(chi)(chi)組(zu)3.7伏(fu)電(dian)(dian)(dian)壓(ya)(ya)5000毫(hao)(hao)安(an)(an)(an)(an)(an)時(shi)容量(liang)。

它就是通過電芯與極柱的(de)(de)(de)串聯(lian)、并(bing)聯(lian)來滿足產(chan)品對電壓(ya)、電流(liu)及容量的(de)(de)(de)需(xu)求。多(duo)并(bing)多(duo)串的(de)(de)(de)電池組可按以(yi)上計算方法算出電池組的(de)(de)(de)電壓(ya)及容量。

另(ling)外，鋰電池(chi)的碳(tan)對(dui)電芯(xin)的要求(qiu)必須具(ju)有(you)較高的一致性(xing)，電池(chi)組(zu)內(nei)各電芯(xin)的容量、內(nei)阻(zu)、電壓、放(fang)電曲線、壽命都得在(zai)一個極(ji)小差(cha)異范圍之內(nei)，與電池(chi)的派對(dui)、組(zu)裝工藝及成品檢測也要較高的要求(qiu)。以(yi)確(que)保品質(zhi)優良。

其它新聞：

新能源汽車鋰電動力電池技術突破新角度

鋰電池結構件廠家看燃油汽車大降價對汽車市場的影響

拆解方殼電池與大家分析下其鋰電池結構件功能