聚合物鋰電池與鉛酸蓄電池是兩種完全不同屬性的電池，它(ta)們不僅在電(dian)壓、內阻(zu)和容(rong)量等方面的不同(tong)，而且(qie)因為原料本身的特性，能接受的充(chong)電(dian)電(dian)流大(da)小也不同(tong)，所以聚合物鋰電(dian)池充(chong)電(dian)方法與鉛酸蓄(xu)電(dian)池充(chong)電(dian)辦法是不相(xiang)同(tong)的。

鉛酸蓄(xu)(xu)電(dian)池(chi)皮實耐用，對充電(dian)電(dian)路要求不高。12V的鉛酸蓄(xu)(xu)電(dian)池(chi)充電(dian)電(dian)壓不超過15V就可以。而電(dian)流不是(shi)特別大就可以。偶爾一次過充電(dian)過放點也不會導(dao)致電(dian)池(chi)損壞(huai)。

也不要(yao)保護(hu)電(dian)路，充電(dian)器結構也很(hen)簡單基本(ben)上就是一個直流電(dian)源，因(yin)此恒壓(14.5V)限流(0.1-0.4C)的電(dian)路就可以為鉛酸蓄電(dian)池(chi)充電(dian)。

因為聚(ju)合物鋰(li)離子電(dian)(dian)池則比較嬌貴(gui)，過(guo)充電(dian)(dian)和過(guo)放電(dian)(dian)都會導致電(dian)(dian)池立(li)刻損壞，所以(yi)鋰(li)離子電(dian)(dian)池幾(ji)乎都配備(bei)保護電(dian)(dian)路(lu)，保護電(dian)(dian)路(lu)與鋰(li)離子電(dian)(dian)池封裝在一(yi)起(qi)。

雖(sui)然(ran)(ran)配(pei)有保護電(dian)(dian)路(lu)，但是聚合物鋰離子(zi)電(dian)(dian)池充電(dian)(dian)依(yi)然(ran)(ran)要(yao)智(zhi)能浮充充電(dian)(dian)，電(dian)(dian)壓(ya)上升到4.2V(涓流充電(dian)(dian)閾值)時(shi)則轉為(wei)恒壓(ya)充電(dian)(dian)。

例如為一(yi)節容(rong)量為2200ma的鋰離子電池充電，充電電流選(xuan)0.2C為440ma。則(ze)充電電流設定(ding)(ding)為440ma。恒壓設定(ding)(ding)在4.2V。

1、聚合物鋰(li)離子電(dian)(dian)池適配的(de)(de)充(chong)(chong)電(dian)(dian)器(qi)，執(zhi)行(xing)的(de)(de)是(shi)恒(heng)流(liu)恒(heng)壓(ya)(ya)，因為鋰(li)電(dian)(dian)的(de)(de)內阻小，在設計充(chong)(chong)電(dian)(dian)器(qi)的(de)(de)標(biao)準上首先確保(bao)恒(heng)流(liu)，不管鋰(li)電(dian)(dian)缺電(dian)(dian)到什么低電(dian)(dian)量，充(chong)(chong)電(dian)(dian)時只能(neng)輸出標(biao)稱的(de)(de)（比如(ru)1A），這就(jiu)是(shi)恒(heng)流(liu)的(de)(de)限制。這種(zhong)充(chong)(chong)電(dian)(dian)器(qi)的(de)(de)特殊在確保(bao)恒(heng)流(liu)時還要確保(bao)電(dian)(dian)壓(ya)(ya)高于4.2v、如(ru)低了形不成(cheng)電(dian)(dian)流(liu)。

鋰(li)電在充電中會(hui)隨著電量(liang)的(de)逐漸上升(sheng)而電流(liu)逐漸減小，電壓反逐漸回升(sheng)，最后(hou)達標準(zhun)4．2v時會(hui)自動(dong)截止。

因為鋰電比較嬌(jiao)貴(gui)，非得講究對(dui)(dui)保護(hu)板(ban)的(de)技術含量，馬虎(hu)不(bu)得，倘若超(chao)1％向(xiang)上持續(xu)充(chong)(chong)電會出現鼓包等(deng)事故的(de)，所以(yi)對(dui)(dui)充(chong)(chong)電器要講究原廠適配，不(bu)可亂混(hun)用充(chong)(chong)電器。

2、鉛(qian)酸電(dian)(dian)(dian)池就沒有鋰(li)電(dian)(dian)(dian)那么金貴，比如(ru)說你隨(sui)便利用變(bian)壓器(qi)(qi)用適配的(de)一只(zhi)二極管半波整流都可充(chong)電(dian)(dian)(dian)，但這不(bu)是提倡的(de)。電(dian)(dian)(dian)動(dong)汽車隨(sui)車有適配的(de)充(chong)電(dian)(dian)(dian)器(qi)(qi)，它可利用脈沖充(chong)電(dian)(dian)(dian)，分三段式、恒(heng)流恒(heng)壓涓(juan)流充(chong)電(dian)(dian)(dian)。

為何講究(jiu)30％電量(liang)向上充電，低電量(liang)充電時會(hui)恒流(liu)滿載輸(shu)電，這時極(ji)板萌生(sheng)的熱量(liang)最(zui)大，會(hui)使(shi)極(ji)板鉛粉脫落的，會(hui)使(shi)電瓶續(xu)航里程越來越短的。

實際(ji)上鉛電(dian)(dian)充(chong)電(dian)(dian)器(qi)也(ye)近似(si)鋰(li)電(dian)(dian)充(chong)電(dian)(dian)器(qi)，充(chong)電(dian)(dian)時(shi)每塊12V電(dian)(dian)瓶(ping)能分配到14．5V電(dian)(dian)壓，它既保(bao)證恒流又確保(bao)足夠電(dian)(dian)壓，當兩側電(dian)(dian)壓相似(si)時(shi)就出現(xian)涓流充(chong)電(dian)(dian)，等充(chong)電(dian)(dian)盒冷卻了電(dian)(dian)流也(ye)就截止了。

以上就(jiu)是關(guan)于聚合物鋰電池(chi)充(chong)電方法與鉛酸蓄電池(chi)有什么區(qu)別介紹。