聚合物鋰電池一般指聚合物鋰離子電池，根據鋰離子電池所用電解質材料的不同，鋰離子電池分為液態鋰離子電池和聚合物鋰離子電池或塑料鋰離子電池。你知道聚合物鋰電池和鋰電池區別是什么嗎?下面格氏電池就和大家一起來學學這些小常識。

一、聚合物鋰電池和鋰電池區別

相對于鋰(li)(li)離(li)子電池(chi)，鋰(li)(li)聚合物電池(chi)的特點如(ru)下：

1.無電池漏液問題，其電池內部(bu)不含(han)液態(tai)電解液，使(shi)用膠態(tai)的固體(ti)。

2.可制成薄型電池：以3.6V400mAh的容量，其厚度可薄至0.5mm。

3.電池可設計成多種形狀。

4.電池可彎曲(qu)變形：高分子電池最大可彎曲(qu)900左(zuo)右。

5.可(ke)制成(cheng)單顆高電(dian)壓：液態電(dian)解質的電(dian)池僅能以數顆電(dian)池串聯得到高電(dian)壓，高分子(zi)電(dian)池。

6.由于本身(shen)無液體，可在(zai)單顆(ke)內做成(cheng)多層組合來達到高電壓。

7.容(rong)量將比同樣大小的鋰離子電池高出一倍。

二、聚合物鋰電池壽命

正確的說(shuo)法：鋰電壽(shou)命和充電周期的完成次(ci)數(shu)有關，和充電次(ci)數(shu)沒(mei)有直(zhi)接關系(xi)。

簡單的(de)理(li)解，例如(ru)，一(yi)(yi)塊(kuai)鋰(li)(li)電(dian)(dian)(dian)(dian)在第一(yi)(yi)天只用了一(yi)(yi)半的(de)電(dian)(dian)(dian)(dian)量(liang)，然(ran)后(hou)又(you)為它充(chong)(chong)滿電(dian)(dian)(dian)(dian)。如(ru)果(guo)第二天還如(ru)此(ci)，即用一(yi)(yi)半就(jiu)充(chong)(chong)，總共兩次充(chong)(chong)電(dian)(dian)(dian)(dian)下來，這只能算(suan)作一(yi)(yi)個(ge)(ge)充(chong)(chong)電(dian)(dian)(dian)(dian)周(zhou)期(qi)(qi)，而不(bu)(bu)是(shi)兩個(ge)(ge)。因(yin)此(ci)，通常可能要(yao)經過(guo)好幾次充(chong)(chong)電(dian)(dian)(dian)(dian)才完成一(yi)(yi)個(ge)(ge)周(zhou)期(qi)(qi)。每完成一(yi)(yi)個(ge)(ge)充(chong)(chong)電(dian)(dian)(dian)(dian)周(zhou)期(qi)(qi)，電(dian)(dian)(dian)(dian)量(liang)就(jiu)會減少一(yi)(yi)點(dian)。不(bu)(bu)過(guo)，減少幅度非常小，高品質(zhi)的(de)電(dian)(dian)(dian)(dian)池充(chong)(chong)過(guo)多次周(zhou)期(qi)(qi)后(hou)，仍(reng)然(ran)會保留原始電(dian)(dian)(dian)(dian)量(liang)的(de)80%，很(hen)多鋰(li)(li)電(dian)(dian)(dian)(dian)供電(dian)(dian)(dian)(dian)產(chan)品在經過(guo)兩三(san)年后(hou)仍(reng)然(ran)照常使用，就(jiu)是(shi)這個(ge)(ge)原因(yin)。當然(ran)鋰(li)(li)電(dian)(dian)(dian)(dian)壽命到了最終還是(shi)需要(yao)更換的(de)。

鋰(li)電(dian)(dian)(dian)(dian)的(de)壽(shou)(shou)命一般為300～500個充(chong)電(dian)(dian)(dian)(dian)周期。假設一次(ci)完(wan)全放電(dian)(dian)(dian)(dian)提(ti)供的(de)電(dian)(dian)(dian)(dian)量為Q，如(ru)(ru)不(bu)考慮每(mei)個充(chong)電(dian)(dian)(dian)(dian)周期以后電(dian)(dian)(dian)(dian)量的(de)減少，則鋰(li)電(dian)(dian)(dian)(dian)在其(qi)壽(shou)(shou)命內(nei)總(zong)共(gong)可以提(ti)供或為其(qi)補充(chong)300Q-500Q的(de)電(dian)(dian)(dian)(dian)力。由此我們知道，如(ru)(ru)果(guo)每(mei)次(ci)用1/2就充(chong)，則可以充(chong)600-1000次(ci)；如(ru)(ru)果(guo)每(mei)次(ci)用1/3就充(chong)，則可以充(chong)900～1500次(ci)。以此類(lei)推，如(ru)(ru)果(guo)隨機充(chong)電(dian)(dian)(dian)(dian)，則次(ci)數不(bu)定。總(zong)之，不(bu)論怎么(me)充(chong)，總(zong)共(gong)補充(chong)進300Q～500Q的(de)電(dian)(dian)(dian)(dian)力這(zhe)一點(dian)是恒(heng)定的(de)。所(suo)以，我們也可以這(zhe)樣理解：鋰(li)電(dian)(dian)(dian)(dian)池壽(shou)(shou)命和(he)電(dian)(dian)(dian)(dian)池的(de)總(zong)充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)量有關，和(he)充(chong)電(dian)(dian)(dian)(dian)次(ci)數無(wu)關。深放深充(chong)和(he)淺放淺充(chong)對(dui)于鋰(li)電(dian)(dian)(dian)(dian)壽(shou)(shou)命的(de)影響相差不(bu)大。

事(shi)實(shi)上(shang)，淺放(fang)淺充對(dui)于鋰(li)(li)電(dian)(dian)更(geng)有(you)益(yi)處(chu)，只有(you)在產品的電(dian)(dian)源模(mo)塊為(wei)鋰(li)(li)電(dian)(dian)做校準時(shi)，才有(you)深放(fang)深充的必要。所(suo)以，使用鋰(li)(li)電(dian)(dian)供電(dian)(dian)的產品不必拘泥于過程(cheng)，一切以方便為(wei)先，隨時(shi)充電(dian)(dian)，不必擔心影響壽命。

如果在(zai)高于(yu)規(gui)定的(de)操作(zuo)溫(wen)度(du)，即(ji)35°C以(yi)上的(de)環境中(zhong)使用鋰電(dian)(dian)(dian)，電(dian)(dian)(dian)池的(de)電(dian)(dian)(dian)量將會不斷(duan)的(de)減少，即(ji)電(dian)(dian)(dian)池的(de)供電(dian)(dian)(dian)時間(jian)不會像往常那樣(yang)長(chang)。如果在(zai)這樣(yang)的(de)溫(wen)度(du)下，還(huan)要為設備充電(dian)(dian)(dian)，那對電(dian)(dian)(dian)池的(de)損傷將更大(da)。即(ji)使是在(zai)較熱的(de)環境中(zhong)存放電(dian)(dian)(dian)池，也會不可(ke)避(bi)免的(de)對電(dian)(dian)(dian)池的(de)質量造成相應的(de)損壞。所以(yi)，盡量保持在(zai)適益的(de)操作(zuo)溫(wen)度(du)是延(yan)長(chang)鋰電(dian)(dian)(dian)壽(shou)命的(de)好(hao)方(fang)法。

如果在低溫(wen)(wen)(wen)環(huan)(huan)境，即4°C以(yi)下(xia)中使(shi)用鋰電，同樣也會發現電池(chi)的使(shi)用時間減少了(le)，有些手機(ji)的原裝鋰電在低溫(wen)(wen)(wen)環(huan)(huan)境中甚(shen)至充不上(shang)電。但不必太擔心，這(zhe)只(zhi)是暫時狀(zhuang)況，不同于高溫(wen)(wen)(wen)環(huan)(huan)境下(xia)的使(shi)用，一旦溫(wen)(wen)(wen)度升(sheng)起來，電池(chi)中的分子受熱，就(jiu)馬上(shang)恢復到以(yi)前的電量。

要(yao)想發(fa)揮鋰(li)(li)(li)離子(zi)(zi)電池的(de)最大效(xiao)能，就需要(yao)經(jing)常(chang)用它，讓(rang)鋰(li)(li)(li)電內(nei)的(de)電子(zi)(zi)始終處于流動狀態(tai)。如果不經(jing)常(chang)使用鋰(li)(li)(li)電，請一(yi)定記(ji)得每月給鋰(li)(li)(li)電完(wan)成一(yi)個充電周期(qi)，做一(yi)次(ci)電量(liang)校準，即深放深充一(yi)次(ci)。