充電電池不能充電的原因分析
市場上主(zhu)要有兩種充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)池(chi)鎳氫(qing)電(dian)(dian)(dian)池(chi)和(he)鋰離子(zi)電(dian)(dian)(dian)池(chi),人們(men)關(guan)注的(de)(de)電(dian)(dian)(dian)池(chi)充(chong)不進電(dian)(dian)(dian)的(de)(de)問題大抵是針對這兩種類型(xing)的(de)(de)。同一類型(xing)和(he)規(gui)格(ge)的(de)(de)電(dian)(dian)(dian)池(chi)又(you)可以(yi)通(tong)過并聯、串聯和(he)混聯組(zu)成不同電(dian)(dian)(dian)芯數目的(de)(de)組(zu)合(he)電(dian)(dian)(dian)池(chi),作為一個普遍現象(xiang),人們(men)希望了解電(dian)(dian)(dian)池(chi)及電(dian)(dian)(dian)池(chi)組(zu)充(chong)不進電(dian)(dian)(dian)的(de)(de)背后原(yuan)因進而尋求解決之(zhi)道。
電(dian)(dian)池(chi)(chi)(chi)充(chong)不(bu)進電(dian)(dian)的(de)原(yuan)因從大的(de)方面來說,可以分為(wei)電(dian)(dian)池(chi)(chi)(chi)自身(shen)固有(you)的(de)內部原(yuan)因和電(dian)(dian)池(chi)(chi)(chi)實施充(chong)電(dian)(dian)的(de)外部原(yuan)因。鋰離子電(dian)(dian)池(chi)(chi)(chi)以其更優越的(de)性(xing)能正(zheng)在逐步占領(ling)鎳(nie)氫電(dian)(dian)池(chi)(chi)(chi)的(de)原(yuan)有(you)市場,所以,這(zhe)里以鋰電(dian)(dian)池(chi)(chi)(chi)充(chong)電(dian)(dian)為(wei)主(zhu)進行(xing)說明,有(you)區(qu)別的(de)地方提到鎳(nie)氫電(dian)(dian)池(chi)(chi)(chi)。
電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)充(chong)(chong)不進(jin)電(dian)(dian)(dian)(dian)的(de)(de)(de)內因有(you)(you):電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)零(ling)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)或(huo)者組(zu)合電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)中有(you)(you)零(ling)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)。電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)零(ling)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)要(yao)么本身就(jiu)是(shi)不合格(ge)品(pin),出廠時就(jiu)沒有(you)(you)達到相應的(de)(de)(de)標稱(cheng)容(rong)(rong)量(liang)和電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)值(zhi),要(yao)么屬于壽終正寢,因長期使(shi)(shi)用,容(rong)(rong)量(liang)耗盡(jin),電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)降而(er)(er)為零(ling)。考(kao)慮到鋰電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)經過(guo)(guo)長期擱置,如一(yi)年以上(shang),也可能(neng)(neng)以自放電(dian)(dian)(dian)(dian)的(de)(de)(de)形式把(ba)電(dian)(dian)(dian)(dian)量(liang)放盡(jin)從(cong)而(er)(er)使(shi)(shi)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)為零(ling),現(xian)在(zai)的(de)(de)(de)鋰電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)保護方案在(zai)設計(ji)上(shang)要(yao)求電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)零(ling)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)時也能(neng)(neng)充(chong)(chong)進(jin)電(dian)(dian)(dian)(dian)。因而(er)(er),對于電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)零(ling)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)有(you)(you)兩種區(qu)別:一(yi)種是(shi)能(neng)(neng)夠(gou)充(chong)(chong)電(dian)(dian)(dian)(dian)繼續使(shi)(shi)用的(de)(de)(de),另一(yi)種是(shi)以完全(quan)沒有(you)(you)使(shi)(shi)用價值(zhi)的(de)(de)(de);換句話說,前(qian)者容(rong)(rong)量(liang)損失是(shi)可逆的(de)(de)(de),而(er)(er)后者是(shi)不可逆的(de)(de)(de)。充(chong)(chong)不進(jin)電(dian)(dian)(dian)(dian)的(de)(de)(de)零(ling)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)如果(guo)不幸(xing)設計(ji)到鋰電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)組(zu)中,就(jiu)可能(neng)(neng)通過(guo)(guo)保護芯(xin)片(pian)把(ba)零(ling)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)信號傳導到電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)組(zu)中,從(cong)而(er)(er)關斷(duan)MOSFET,使(shi)(shi)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)組(zu)無法充(chong)(chong)電(dian)(dian)(dian)(dian)。
點池組(zu)連接(jie)錯誤。這(zhe)種情況(kuang)(kuang)出現的(de)(de)可能(neng)(neng)性較(jiao)小,因為充電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池或(huo)電(dian)(dian)(dian)(dian)(dian)池組(zu)出廠(chang)時一般都要求(qiu)全(quan)(quan)檢,正規廠(chang)家的(de)(de)電(dian)(dian)(dian)(dian)(dian)池出現這(zhe)種情況(kuang)(kuang)除非(fei)是(shi)某(mou)批電(dian)(dian)(dian)(dian)(dian)池出廠(chang)時沒(mei)有全(quan)(quan)檢,而(er)恰(qia)恰(qia)連接(jie)錯誤的(de)(de)電(dian)(dian)(dian)(dian)(dian)池組(zu)就(jiu)在(zai)未(wei)檢之列。當然,對于非(fei)正規廠(chang)家出品或(huo)者個人組(zu)裝則另當別論(lun),出現連接(jie)錯誤并(bing)不能(neng)(neng)完全(quan)(quan)杜絕。相對來說,鎳氫電(dian)(dian)(dian)(dian)(dian)池組(zu)全(quan)(quan)檢率(lv)低些,這(zhe)種錯誤的(de)(de)概率(lv)可能(neng)(neng)會(hui)(hui)大一點。內部電(dian)(dian)(dian)(dian)(dian)子元件(jian)(jian)、保護(hu)電(dian)(dian)(dian)(dian)(dian)路(lu)出現異常。這(zhe)種情況(kuang)(kuang)大抵是(shi)電(dian)(dian)(dian)(dian)(dian)池用久(jiu)后出現的(de)(de),電(dian)(dian)(dian)(dian)(dian)子元件(jian)(jian)的(de)(de)老化、脫(tuo)落均(jun)會(hui)(hui)導(dao)致電(dian)(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)(dian)出現異常,尤(you)其(qi)是(shi)集成到(dao)保護(hu)電(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)子元件(jian)(jian)出現上述(shu)情況(kuang)(kuang)后會(hui)(hui)直接(jie)影響到(dao)電(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)保護(hu)功能(neng)(neng)的(de)(de)發(fa)揮,從而(er)不能(neng)(neng)正確(que)指導(dao)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),有些萬能充電(dian)器也盡量不(bu)要(yao)(yao)“萬能”使用(yong)。充電(dian)設備故障,無輸(shu)出電(dian)壓。出現(xian)這(zhe)種情況,只需要(yao)(yao)把電(dian)池(chi)放到另一(yi)個同(tong)型號的充電(dian)器上充電(dian)即可。不(bu)適宜(yi)的充電(dian)環境,充電(dian)器和充電(dian)電(dian)池(chi)都有自己的工作環境,越過了兩者(zhe)中任(ren)何(he)一(yi)個限(xian)定條件,不(bu)論(lun)是高溫還(huan)是低溫都會令充電(dian)無法進行。
解(jie)決電池充(chong)不(bu)進電問(wen)題(ti)(ti)無外(wai)乎診斷和治療。診斷的(de)(de)秩序是先外(wai)因后(hou)內因,因為充(chong)電方法出現的(de)(de)問(wen)題(ti)(ti)只要改(gai)正(zheng)就(jiu)行了,而內因則需(xu)要專(zhuan)(zhuan)業的(de)(de)電池知識和電池檢測設備才能(neng)得出正(zheng)確結論,在(zai)自己不(bu)能(neng)解(jie)決的(de)(de)情況下,可以拿(na)到(dao)專(zhuan)(zhuan)業的(de)(de)維(wei)修網點(dian)進行維(wei)護(hu)。
