充電電池不能充電的原因分析
市場上主要有(you)兩種充(chong)電(dian)(dian)電(dian)(dian)池(chi)(chi)鎳氫(qing)電(dian)(dian)池(chi)(chi)和鋰離子電(dian)(dian)池(chi)(chi),人們關注的(de)(de)電(dian)(dian)池(chi)(chi)充(chong)不(bu)進電(dian)(dian)的(de)(de)問題大抵是針對這兩種類型的(de)(de)。同一(yi)類型和規格的(de)(de)電(dian)(dian)池(chi)(chi)又可以通過并聯(lian)(lian)、串聯(lian)(lian)和混聯(lian)(lian)組(zu)成不(bu)同電(dian)(dian)芯數目的(de)(de)組(zu)合電(dian)(dian)池(chi)(chi),作為一(yi)個(ge)普遍現象,人們希望了解電(dian)(dian)池(chi)(chi)及電(dian)(dian)池(chi)(chi)組(zu)充(chong)不(bu)進電(dian)(dian)的(de)(de)背(bei)后原因進而尋求解決(jue)之道。
電(dian)(dian)(dian)池(chi)(chi)(chi)充不進電(dian)(dian)(dian)的(de)原(yuan)(yuan)因從大的(de)方面(mian)來說,可以(yi)(yi)分為電(dian)(dian)(dian)池(chi)(chi)(chi)自身(shen)固(gu)有的(de)內部原(yuan)(yuan)因和電(dian)(dian)(dian)池(chi)(chi)(chi)實(shi)施充電(dian)(dian)(dian)的(de)外部原(yuan)(yuan)因。鋰離子電(dian)(dian)(dian)池(chi)(chi)(chi)以(yi)(yi)其更優越的(de)性(xing)能正在逐(zhu)步占領鎳氫電(dian)(dian)(dian)池(chi)(chi)(chi)的(de)原(yuan)(yuan)有市場(chang),所以(yi)(yi),這里(li)以(yi)(yi)鋰電(dian)(dian)(dian)池(chi)(chi)(chi)充電(dian)(dian)(dian)為主(zhu)進行說明,有區(qu)別的(de)地方提(ti)到鎳氫電(dian)(dian)(dian)池(chi)(chi)(chi)。
電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)充(chong)不(bu)進(jin)電(dian)(dian)(dian)(dian)(dian)的(de)內因(yin)有(you):電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)零(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)壓(ya)或者(zhe)(zhe)組(zu)合(he)(he)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)中有(you)零(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)壓(ya)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)。電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)零(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)壓(ya)要(yao)么本身就是不(bu)合(he)(he)格品(pin),出廠時就沒有(you)達到(dao)相(xiang)應的(de)標稱容量(liang)和電(dian)(dian)(dian)(dian)(dian)壓(ya)值,要(yao)么屬(shu)于(yu)(yu)壽終正寢,因(yin)長期使用,容量(liang)耗盡(jin),電(dian)(dian)(dian)(dian)(dian)壓(ya)降而為(wei)零(ling)(ling)(ling)。考(kao)慮(lv)到(dao)鋰(li)(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)經過長期擱(ge)置,如(ru)一(yi)年以上,也(ye)(ye)可(ke)能以自放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)的(de)形式把電(dian)(dian)(dian)(dian)(dian)量(liang)放(fang)(fang)盡(jin)從而使電(dian)(dian)(dian)(dian)(dian)壓(ya)為(wei)零(ling)(ling)(ling),現在的(de)鋰(li)(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)保護(hu)方案在設計(ji)上要(yao)求電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)零(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)壓(ya)時也(ye)(ye)能充(chong)進(jin)電(dian)(dian)(dian)(dian)(dian)。因(yin)而,對于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)零(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)壓(ya)有(you)兩種區別:一(yi)種是能夠充(chong)電(dian)(dian)(dian)(dian)(dian)繼續使用的(de),另一(yi)種是以完全沒有(you)使用價值的(de);換句話說,前(qian)者(zhe)(zhe)容量(liang)損失是可(ke)逆的(de),而后者(zhe)(zhe)是不(bu)可(ke)逆的(de)。充(chong)不(bu)進(jin)電(dian)(dian)(dian)(dian)(dian)的(de)零(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)壓(ya)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)如(ru)果(guo)不(bu)幸設計(ji)到(dao)鋰(li)(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)組(zu)中,就可(ke)能通(tong)過保護(hu)芯(xin)片把零(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)壓(ya)信號傳導到(dao)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)組(zu)中,從而關斷MOSFET,使電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)組(zu)無(wu)法充(chong)電(dian)(dian)(dian)(dian)(dian)。
點池組(zu)連接錯(cuo)誤。這(zhe)種(zhong)情(qing)況(kuang)(kuang)(kuang)出(chu)現(xian)的(de)(de)可(ke)能性較小,因(yin)為(wei)充(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池或(huo)電(dian)(dian)(dian)(dian)(dian)池組(zu)出(chu)廠(chang)時(shi)一般都要(yao)求全(quan)檢,正(zheng)規(gui)廠(chang)家的(de)(de)電(dian)(dian)(dian)(dian)(dian)池出(chu)現(xian)這(zhe)種(zhong)情(qing)況(kuang)(kuang)(kuang)除非(fei)是某批電(dian)(dian)(dian)(dian)(dian)池出(chu)廠(chang)時(shi)沒有全(quan)檢,而恰(qia)恰(qia)連接錯(cuo)誤的(de)(de)電(dian)(dian)(dian)(dian)(dian)池組(zu)就在未檢之列。當然,對(dui)于非(fei)正(zheng)規(gui)廠(chang)家出(chu)品(pin)或(huo)者個人組(zu)裝(zhuang)則另(ling)當別論,出(chu)現(xian)連接錯(cuo)誤并不能完全(quan)杜絕(jue)。相對(dui)來說,鎳氫電(dian)(dian)(dian)(dian)(dian)池組(zu)全(quan)檢率低(di)些,這(zhe)種(zhong)錯(cuo)誤的(de)(de)概率可(ke)能會(hui)大(da)一點。內部(bu)電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)元(yuan)件、保護(hu)電(dian)(dian)(dian)(dian)(dian)路(lu)出(chu)現(xian)異常(chang)。這(zhe)種(zhong)情(qing)況(kuang)(kuang)(kuang)大(da)抵是電(dian)(dian)(dian)(dian)(dian)池用久后(hou)出(chu)現(xian)的(de)(de),電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)元(yuan)件的(de)(de)老化、脫(tuo)落均會(hui)導致電(dian)(dian)(dian)(dian)(dian)池充(chong)電(dian)(dian)(dian)(dian)(dian)出(chu)現(xian)異常(chang),尤其(qi)是集(ji)成到保護(hu)電(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)元(yuan)件出(chu)現(xian)上述情(qing)況(kuang)(kuang)(kuang)后(hou)會(hui)直接影響到電(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)保護(hu)功能的(de)(de)發揮,從而不能正(zheng)確指導充(chong)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(hun)用(yong),有(you)些萬能充(chong)電器也盡量(liang)不(bu)(bu)要(yao)“萬能”使用(yong)。充(chong)電設(she)備(bei)故障,無(wu)輸出(chu)電壓。出(chu)現這(zhe)種情況,只需要(yao)把電池(chi)放(fang)到另一個(ge)同型(xing)號的(de)充(chong)電器上(shang)充(chong)電即(ji)可(ke)。不(bu)(bu)適宜的(de)充(chong)電環境,充(chong)電器和充(chong)電電池(chi)都(dou)有(you)自己的(de)工作環境,越過了兩(liang)者(zhe)中(zhong)任(ren)何一個(ge)限定條(tiao)件,不(bu)(bu)論(lun)是高溫還是低溫都(dou)會令(ling)充(chong)電無(wu)法進行。
解(jie)決電(dian)(dian)(dian)池(chi)(chi)充不(bu)進電(dian)(dian)(dian)問(wen)題無(wu)外(wai)乎診斷(duan)和(he)治療(liao)。診斷(duan)的(de)秩序是先外(wai)因后內因,因為充電(dian)(dian)(dian)方法出(chu)現的(de)問(wen)題只要改正(zheng)就行(xing)了(le),而(er)內因則需要專(zhuan)業(ye)的(de)電(dian)(dian)(dian)池(chi)(chi)知識和(he)電(dian)(dian)(dian)池(chi)(chi)檢測設備才能(neng)得出(chu)正(zheng)確(que)結(jie)論,在自己不(bu)能(neng)解(jie)決的(de)情(qing)況下,可以拿到專(zhuan)業(ye)的(de)維修網點進行(xing)維護(hu)。