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鋰(li)(li)電池(chi)(chi)的(de)使用(yong)壽(shou)命是鋰(li)(li)離子電池(chi)(chi)使用(yong)中必(bi)須注意(yi)的(de)一個指標。一般來說(shuo)，鋰(li)(li)離子電池(chi)(chi)的(de)使用(yong)壽(shou)命主要受兩個因素的(de)影(ying)響：1、使用(yong)時間；2、循環次數。

當電(dian)(dian)池在測(ce)(ce)試后被充(chong)電(dian)(dian)時(shi)，由于檢測(ce)(ce)柜的(de)接(jie)觸(chu)電(dian)(dian)阻或(huo)充(chong)電(dian)(dian)電(dian)(dian)流的(de)不(bu)一致(zhi)，芯(xin)的(de)電(dian)(dian)荷是不(bu)均(jun)勻的(de)。在短時(shi)間存儲(12小時(shi))中測(ce)(ce)量電(dian)(dian)壓(ya)有(you)很小的(de)差(cha)別，但是在長期存儲期間電(dian)(dian)壓(ya)有(you)很大的(de)差(cha)異(yi)。

鋰電池(chi)(chi)電壓高，重量(liang)輕(qing)。一(yi)個單體電池(chi)(chi)平均(jun)電壓就能達到(dao)3.7V或(huo)者3.2V。相對(dui)等于2-4個鎳(nie)(nie)氫(qing)電池(chi)(chi)或(huo)鎳(nie)(nie)隔電池(chi)(chi)的串聯電壓。如果客戶要(yao)求(qiu)使用電池(chi)(chi)的電壓過(guo)關，那么選用鋰電池(chi)(chi)也容易方便(bian)組成鋰電池(chi)(chi)組，方便(bian)快捷把鋰電池(chi)(chi)電壓提升(sheng)。

人(ren)有(you)(you)生(sheng)(sheng)老(lao)病死，鋰(li)電(dian)池有(you)(you)產(chan)用衰廢，鋰(li)電(dian)池總(zong)歸是(shi)有(you)(you)無(wu)法再次用而不得不報(bao)廢的(de)一(yi)天，人(ren)們把這種現象稱為鋰(li)電(dian)池壽命。人(ren)自(zi)誕生(sheng)(sheng)之日起已經決定了(le)生(sheng)(sheng)命的(de)極限，這是(shi)無(wu)法改變的(de)，不過，人(ren)們日常(chang)的(de)生(sheng)(sheng)活習(xi)慣是(shi)否(fou)科學(xue)可以決定在這一(yi)極限內(nei)的(de)延(yan)展長(chang)度；

鋰(li)電(dian)(dian)池(chi)指(zhi)鋰(li)離子二次充電(dian)(dian)電(dian)(dian)池(chi)，從外(wai)型看(kan)，有圓(yuan)柱(zhu)鋼殼(ke)、方(fang)形鋁(lv)殼(ke)和軟(ruan)(ruan)包三(san)種(zhong)，其中(zhong)軟(ruan)(ruan)包就(jiu)(jiu)是標題中(zhong)的(de)聚合(he)(he)物(wu)，由此可見，聚合(he)(he)物(wu)實際是聚合(he)(he)物(wu)鋰(li)電(dian)(dian)池(chi)，是鋰(li)電(dian)(dian)池(chi)的(de)一種(zhong)。放在(zai)這一語(yu)境中(zhong)，鋰(li)電(dian)(dian)池(chi)就(jiu)(jiu)專(zhuan)指(zhi)圓(yuan)柱(zhu)型鋰(li)電(dian)(dian)池(chi)了(le)。

電(dian)(dian)(dian)(dian)(dian)(dian)池（battery）指盛有電(dian)(dian)(dian)(dian)(dian)(dian)解質溶液和金(jin)屬電(dian)(dian)(dian)(dian)(dian)(dian)極以產生電(dian)(dian)(dian)(dian)(dian)(dian)流的(de)(de)杯、槽或(huo)其他容(rong)器(qi)(qi)或(huo)復合容(rong)器(qi)(qi)的(de)(de)部分空(kong)間。隨(sui)著科技的(de)(de)進(jin)步，電(dian)(dian)(dian)(dian)(dian)(dian)池泛指能(neng)(neng)產生電(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)的(de)(de)小型裝置。如太陽能(neng)(neng)電(dian)(dian)(dian)(dian)(dian)(dian)池。電(dian)(dian)(dian)(dian)(dian)(dian)池的(de)(de)性能(neng)(neng)參數主要有電(dian)(dian)(dian)(dian)(dian)(dian)動勢(shi)、容(rong)量、比能(neng)(neng)量和電(dian)(dian)(dian)(dian)(dian)(dian)阻。