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充電電池不能充電的原因分析

       市場上主(zhu)要有兩(liang)種充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池(chi)(chi)鎳氫(qing)電(dian)(dian)(dian)(dian)池(chi)(chi)和(he)鋰離子(zi)電(dian)(dian)(dian)(dian)池(chi)(chi),人(ren)們關注的(de)電(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)不(bu)(bu)進(jin)(jin)(jin)電(dian)(dian)(dian)(dian)的(de)問題大抵是(shi)針對這(zhe)兩(liang)種類(lei)型的(de)。同一類(lei)型和(he)規格的(de)電(dian)(dian)(dian)(dian)池(chi)(chi)又可以(yi)通過(guo)并聯(lian)、串聯(lian)和(he)混(hun)聯(lian)組成不(bu)(bu)同電(dian)(dian)(dian)(dian)芯數目的(de)組合電(dian)(dian)(dian)(dian)池(chi)(chi),作(zuo)為一個(ge)普遍現象,人(ren)們希(xi)望了(le)解電(dian)(dian)(dian)(dian)池(chi)(chi)及電(dian)(dian)(dian)(dian)池(chi)(chi)組充(chong)不(bu)(bu)進(jin)(jin)(jin)電(dian)(dian)(dian)(dian)的(de)背后原因進(jin)(jin)(jin)而(er)尋求解決之(zhi)道。

電(dian)(dian)池(chi)充(chong)不進(jin)電(dian)(dian)的(de)(de)(de)原(yuan)(yuan)因從大的(de)(de)(de)方面來說,可以(yi)分(fen)為(wei)電(dian)(dian)池(chi)自(zi)身固(gu)有(you)的(de)(de)(de)內部(bu)原(yuan)(yuan)因和電(dian)(dian)池(chi)實施充(chong)電(dian)(dian)的(de)(de)(de)外部(bu)原(yuan)(yuan)因。鋰(li)離子(zi)電(dian)(dian)池(chi)以(yi)其更優越的(de)(de)(de)性能正在逐步(bu)占(zhan)領鎳(nie)氫電(dian)(dian)池(chi)的(de)(de)(de)原(yuan)(yuan)有(you)市場,所以(yi),這里(li)以(yi)鋰(li)電(dian)(dian)池(chi)充(chong)電(dian)(dian)為(wei)主(zhu)進(jin)行說明,有(you)區別的(de)(de)(de)地方提到鎳(nie)氫電(dian)(dian)池(chi)。

     電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)不進(jin)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)內因有(you):電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)零(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)或者(zhe)(zhe)組合電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)中有(you)零(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)零(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)要么本身(shen)就(jiu)是(shi)(shi)(shi)不合格(ge)品(pin),出廠時就(jiu)沒有(you)達到相應的(de)(de)標(biao)稱容(rong)量和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)值,要么屬于壽終正寢,因長期使(shi)用,容(rong)量耗盡(jin)(jin),電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)降(jiang)而(er)為(wei)零(ling)(ling)(ling)。考慮到鋰電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)經過長期擱(ge)置,如一年以(yi)上,也(ye)可(ke)能以(yi)自放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)形式把(ba)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量放(fang)盡(jin)(jin)從(cong)而(er)使(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)為(wei)零(ling)(ling)(ling),現在的(de)(de)鋰電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)保護(hu)方案在設(she)計上要求電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)零(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)時也(ye)能充(chong)進(jin)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)。因而(er),對于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)零(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)有(you)兩種區別:一種是(shi)(shi)(shi)能夠充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)繼續使(shi)用的(de)(de),另一種是(shi)(shi)(shi)以(yi)完(wan)全沒有(you)使(shi)用價(jia)值的(de)(de);換句話說,前者(zhe)(zhe)容(rong)量損失是(shi)(shi)(shi)可(ke)逆的(de)(de),而(er)后者(zhe)(zhe)是(shi)(shi)(shi)不可(ke)逆的(de)(de)。充(chong)不進(jin)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)零(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)如果(guo)不幸設(she)計到鋰電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)組中,就(jiu)可(ke)能通(tong)過保護(hu)芯片把(ba)零(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)信號傳導到電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)組中,從(cong)而(er)關斷MOSFET,使(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)組無法充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)。

點(dian)池組(zu)(zu)(zu)連(lian)接錯誤。這種(zhong)(zhong)情況出(chu)(chu)現(xian)的(de)(de)(de)可能(neng)(neng)性(xing)較(jiao)小(xiao),因為(wei)充電(dian)電(dian)池或(huo)電(dian)池組(zu)(zu)(zu)出(chu)(chu)廠(chang)時(shi)一般都要求全(quan)檢,正規廠(chang)家(jia)的(de)(de)(de)電(dian)池出(chu)(chu)現(xian)這種(zhong)(zhong)情況除非是(shi)某批電(dian)池出(chu)(chu)廠(chang)時(shi)沒有全(quan)檢,而恰(qia)恰(qia)連(lian)接錯誤的(de)(de)(de)電(dian)池組(zu)(zu)(zu)就在未檢之列。當(dang)然,對于非正規廠(chang)家(jia)出(chu)(chu)品或(huo)者個人(ren)組(zu)(zu)(zu)裝則(ze)另當(dang)別論(lun),出(chu)(chu)現(xian)連(lian)接錯誤并不(bu)能(neng)(neng)完全(quan)杜絕。相(xiang)對來說(shuo),鎳氫電(dian)池組(zu)(zu)(zu)全(quan)檢率低些(xie),這種(zhong)(zhong)錯誤的(de)(de)(de)概率可能(neng)(neng)會大一點(dian)。內部(bu)電(dian)子元件、保護(hu)電(dian)路出(chu)(chu)現(xian)異(yi)常(chang)。這種(zhong)(zhong)情況大抵(di)是(shi)電(dian)池用久后出(chu)(chu)現(xian)的(de)(de)(de),電(dian)子元件的(de)(de)(de)老化、脫落均會導(dao)致(zhi)電(dian)池充電(dian)出(chu)(chu)現(xian)異(yi)常(chang),尤其是(shi)集成到(dao)保護(hu)電(dian)路的(de)(de)(de)電(dian)子元件出(chu)(chu)現(xian)上述(shu)情況后會直(zhi)接影(ying)響到(dao)電(dian)路的(de)(de)(de)保護(hu)功能(neng)(neng)的(de)(de)(de)發揮,從(cong)而不(bu)能(neng)(neng)正確指導(dao)充電(dian)過程。

      充電行為中導致充不進電的外部原因有:充電器與電池不配套,特別是不配套的充電器與鋰電池充電電流設計的差異會導致充電時瞬間電流過大,鋰電池實施過流保護中止充電。解決這種不配套特別是注意不要把鎳氫充電器鋰電充電器混用(yong),有些萬能充(chong)(chong)(chong)電(dian)(dian)器也盡量不(bu)要“萬能”使用(yong)。充(chong)(chong)(chong)電(dian)(dian)設備(bei)故障,無輸出電(dian)(dian)壓。出現這種情(qing)況(kuang),只需要把電(dian)(dian)池(chi)放到(dao)另一個(ge)同型號(hao)的充(chong)(chong)(chong)電(dian)(dian)器上充(chong)(chong)(chong)電(dian)(dian)即可(ke)。不(bu)適宜(yi)的充(chong)(chong)(chong)電(dian)(dian)環境,充(chong)(chong)(chong)電(dian)(dian)器和充(chong)(chong)(chong)電(dian)(dian)電(dian)(dian)池(chi)都有自己的工作環境,越過(guo)了兩者(zhe)中任何一個(ge)限定條件,不(bu)論是(shi)高溫還(huan)是(shi)低溫都會令(ling)充(chong)(chong)(chong)電(dian)(dian)無法進(jin)行(xing)。

解決電池充(chong)不進(jin)電問題無外乎診(zhen)斷和治療(liao)。診(zhen)斷的秩序是先外因后(hou)內(nei)(nei)因,因為充(chong)電方法(fa)出現(xian)的問題只(zhi)要(yao)改(gai)正就行了,而(er)內(nei)(nei)因則需要(yao)專(zhuan)業(ye)的電池知識和電池檢(jian)測(ce)設備才(cai)能得出正確結論,在自己不能解決的情況(kuang)下,可以拿到專(zhuan)業(ye)的維(wei)修網點進(jin)行維(wei)護。

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