充電電池不能充電的原因分析
市場上主(zhu)要有兩種(zhong)充電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池(chi)(chi)鎳氫電(dian)(dian)(dian)(dian)池(chi)(chi)和(he)鋰離子電(dian)(dian)(dian)(dian)池(chi)(chi),人們關注的(de)(de)電(dian)(dian)(dian)(dian)池(chi)(chi)充不進(jin)電(dian)(dian)(dian)(dian)的(de)(de)問題大抵是針對這兩種(zhong)類(lei)型(xing)的(de)(de)。同(tong)一類(lei)型(xing)和(he)規格的(de)(de)電(dian)(dian)(dian)(dian)池(chi)(chi)又(you)可(ke)以通過并聯(lian)(lian)、串(chuan)聯(lian)(lian)和(he)混聯(lian)(lian)組(zu)成不同(tong)電(dian)(dian)(dian)(dian)芯數(shu)目(mu)的(de)(de)組(zu)合電(dian)(dian)(dian)(dian)池(chi)(chi),作為(wei)一個普遍(bian)現象,人們希(xi)望了解電(dian)(dian)(dian)(dian)池(chi)(chi)及電(dian)(dian)(dian)(dian)池(chi)(chi)組(zu)充不進(jin)電(dian)(dian)(dian)(dian)的(de)(de)背(bei)后(hou)原因進(jin)而尋求(qiu)解決之道。
電(dian)(dian)(dian)(dian)池充不(bu)進電(dian)(dian)(dian)(dian)的(de)(de)原因從大的(de)(de)方面來說(shuo),可(ke)以分為電(dian)(dian)(dian)(dian)池自身(shen)固有的(de)(de)內部(bu)原因和電(dian)(dian)(dian)(dian)池實施充電(dian)(dian)(dian)(dian)的(de)(de)外部(bu)原因。鋰(li)離子電(dian)(dian)(dian)(dian)池以其更優(you)越的(de)(de)性能正(zheng)在逐步占領鎳氫電(dian)(dian)(dian)(dian)池的(de)(de)原有市(shi)場,所以,這里以鋰(li)電(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)為主進行說(shuo)明,有區別的(de)(de)地方提(ti)到鎳氫電(dian)(dian)(dian)(dian)池。
電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)充(chong)不(bu)(bu)(bu)進(jin)電(dian)(dian)(dian)的(de)(de)內因(yin)有:電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)零(ling)(ling)(ling)(ling)電(dian)(dian)(dian)壓(ya)(ya)(ya)或(huo)者組(zu)合(he)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)中(zhong)(zhong)有零(ling)(ling)(ling)(ling)電(dian)(dian)(dian)壓(ya)(ya)(ya)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)。電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)零(ling)(ling)(ling)(ling)電(dian)(dian)(dian)壓(ya)(ya)(ya)要么(me)本身(shen)就(jiu)是(shi)不(bu)(bu)(bu)合(he)格品,出(chu)廠(chang)時(shi)就(jiu)沒有達到相應的(de)(de)標稱容量(liang)和電(dian)(dian)(dian)壓(ya)(ya)(ya)值,要么(me)屬于壽終正寢,因(yin)長期使用(yong),容量(liang)耗盡,電(dian)(dian)(dian)壓(ya)(ya)(ya)降而為(wei)零(ling)(ling)(ling)(ling)。考慮到鋰電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)經過長期擱置,如一(yi)年以(yi)(yi)上(shang),也可能(neng)以(yi)(yi)自(zi)放電(dian)(dian)(dian)的(de)(de)形(xing)式(shi)把電(dian)(dian)(dian)量(liang)放盡從(cong)而使電(dian)(dian)(dian)壓(ya)(ya)(ya)為(wei)零(ling)(ling)(ling)(ling),現在的(de)(de)鋰電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)保護(hu)方案(an)在設計上(shang)要求(qiu)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)零(ling)(ling)(ling)(ling)電(dian)(dian)(dian)壓(ya)(ya)(ya)時(shi)也能(neng)充(chong)進(jin)電(dian)(dian)(dian)。因(yin)而,對(dui)于電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)零(ling)(ling)(ling)(ling)電(dian)(dian)(dian)壓(ya)(ya)(ya)有兩種區別:一(yi)種是(shi)能(neng)夠充(chong)電(dian)(dian)(dian)繼(ji)續使用(yong)的(de)(de),另(ling)一(yi)種是(shi)以(yi)(yi)完全沒有使用(yong)價值的(de)(de);換(huan)句話(hua)說,前者容量(liang)損(sun)失是(shi)可逆(ni)的(de)(de),而后者是(shi)不(bu)(bu)(bu)可逆(ni)的(de)(de)。充(chong)不(bu)(bu)(bu)進(jin)電(dian)(dian)(dian)的(de)(de)零(ling)(ling)(ling)(ling)電(dian)(dian)(dian)壓(ya)(ya)(ya)電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)如果不(bu)(bu)(bu)幸設計到鋰電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)組(zu)中(zhong)(zhong),就(jiu)可能(neng)通過保護(hu)芯片把零(ling)(ling)(ling)(ling)電(dian)(dian)(dian)壓(ya)(ya)(ya)信(xin)號傳導到電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)組(zu)中(zhong)(zhong),從(cong)而關斷MOSFET,使電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)組(zu)無(wu)法(fa)充(chong)電(dian)(dian)(dian)。
點池(chi)(chi)組連接(jie)錯(cuo)誤(wu)(wu)。這種(zhong)情(qing)況出(chu)現的(de)可(ke)能性(xing)較小,因為充電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)或(huo)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)組出(chu)廠(chang)時(shi)一(yi)般都要求全(quan)檢(jian),正規廠(chang)家(jia)的(de)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)出(chu)現這種(zhong)情(qing)況除非(fei)是某批電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)出(chu)廠(chang)時(shi)沒(mei)有全(quan)檢(jian),而恰(qia)恰(qia)連接(jie)錯(cuo)誤(wu)(wu)的(de)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)組就在未檢(jian)之列。當(dang)然(ran),對于非(fei)正規廠(chang)家(jia)出(chu)品或(huo)者個人(ren)組裝則(ze)另當(dang)別論(lun),出(chu)現連接(jie)錯(cuo)誤(wu)(wu)并不能完全(quan)杜(du)絕。相對來說(shuo),鎳氫電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)組全(quan)檢(jian)率低些,這種(zhong)錯(cuo)誤(wu)(wu)的(de)概(gai)率可(ke)能會(hui)大一(yi)點。內(nei)部(bu)電(dian)(dian)(dian)(dian)(dian)子(zi)元件、保護電(dian)(dian)(dian)(dian)(dian)路(lu)出(chu)現異常。這種(zhong)情(qing)況大抵是電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)用(yong)久后(hou)出(chu)現的(de),電(dian)(dian)(dian)(dian)(dian)子(zi)元件的(de)老化、脫落均會(hui)導致電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充電(dian)(dian)(dian)(dian)(dian)出(chu)現異常,尤其是集成(cheng)到(dao)保護電(dian)(dian)(dian)(dian)(dian)路(lu)的(de)電(dian)(dian)(dian)(dian)(dian)子(zi)元件出(chu)現上述情(qing)況后(hou)會(hui)直接(jie)影響(xiang)到(dao)電(dian)(dian)(dian)(dian)(dian)路(lu)的(de)保護功能的(de)發揮(hui),從而不能正確指導充電(dian)(dian)(dian)(dian)(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與鋰電充電器混用(yong),有些萬(wan)能(neng)充(chong)(chong)(chong)電(dian)(dian)器也盡量不(bu)要(yao)“萬(wan)能(neng)”使用(yong)。充(chong)(chong)(chong)電(dian)(dian)設備故(gu)障,無輸出電(dian)(dian)壓。出現這種(zhong)情況,只需要(yao)把電(dian)(dian)池放到另一個同(tong)型號的充(chong)(chong)(chong)電(dian)(dian)器上充(chong)(chong)(chong)電(dian)(dian)即可。不(bu)適宜的充(chong)(chong)(chong)電(dian)(dian)環(huan)境,充(chong)(chong)(chong)電(dian)(dian)器和充(chong)(chong)(chong)電(dian)(dian)電(dian)(dian)池都有自(zi)己的工作環(huan)境,越過(guo)了兩者中任何一個限定條件,不(bu)論是高(gao)溫還(huan)是低(di)溫都會令充(chong)(chong)(chong)電(dian)(dian)無法進行。
解決電(dian)池(chi)充不進電(dian)問題(ti)無外(wai)(wai)乎(hu)診斷(duan)和治療。診斷(duan)的(de)秩序是先外(wai)(wai)因后內因,因為(wei)充電(dian)方法出現的(de)問題(ti)只要改正就行了,而內因則需要專業(ye)的(de)電(dian)池(chi)知(zhi)識和電(dian)池(chi)檢測(ce)設(she)備(bei)才能得(de)出正確結論(lun),在(zai)自己不能解決的(de)情況下,可(ke)以拿到專業(ye)的(de)維修網點進行維護。
