電(dian)(dian)(dian)動車(che)(che)電(dian)(dian)(dian)池充電(dian)(dian)(dian)為何發熱(re)? 電(dian)(dian)(dian)動車(che)(che)電(dian)(dian)(dian)池發熱(re)原(yuan)因

據電(dian)(dian)動車(che)車(che)主(zhu)反映電(dian)(dian)動車(che)電(dian)(dian)池在(zai)(zai)充(chong)電(dian)(dian)時有(you)發熱(re)現象，現在(zai)(zai)正是(shi)溫度上升的(de)時節(jie)，電(dian)(dian)動車(che)電(dian)(dian)池在(zai)(zai)充(chong)電(dian)(dian)時發熱(re)的(de)幾率將(jiang)逐漸增加，它又將(jiang)成為(wei)(wei)電(dian)(dian)動車(che)車(che)主(zhu)的(de)憂心之(zhi)患！因此，我(wo)在(zai)(zai)這里(li)為(wei)(wei)廣大電(dian)(dian)動車(che)車(che)主(zhu)簡單分析一下電(dian)(dian)池發熱(re)的(de)原因，以為(wei)(wei)電(dian)(dian)池發熱(re)又不知原因的(de)用戶解惑(huo)，希望能對大家有(you)所助(zhu)益!

電動(dong)車電池(chi)發熱(re)有兩種(zhong)情況(kuang)，一種(zhong)是(shi)(shi)放電發熱(re)，另一種(zhong)是(shi)(shi)充電發熱(re)。

1、放電發熱

放電(dian)發熱的原因(yin)主要有：放電(dian)過快，有可(ke)能是電(dian)池容量小，放電(dian)電(dian)流長時(shi)間超(chao)過0．5C。

1）當電(dian)動機額定電(dian)壓值低(di)，電(dian)池(chi)容量較小，工作電(dian)流(liu)偏大時，電(dian)壓會急劇(ju)降低(di)，容量也很快消耗，對電(dian)池(chi)最為不(bu)利。

2）電池的電化學反(fan)應速度僅(jin)能夠維持(chi)行車(che)，經常做整循環充放(fang)電，稍不注(zhu)意便會超消耗。遇(yu)到(dao)(dao)迎風上坡(po)，耗電甚大(da)，迫(po)使電池極(ji)板急(ji)劇反(fan)應，電池外殼(ke)的熱度較高，會使電池受到(dao)(dao)損(sun)傷，縮短(duan)壽命(ming)。

3）比較理想(xiang)的是(shi)電(dian)池(chi)的電(dian)化學反(fan)應速度充(chong)分(fen)地供給足夠的電(dian)能。電(dian)池(chi)的外(wai)殼(ke)沒有異常熱度，說明(ming)電(dian)池(chi)容量(liang)是(shi)足夠的。

2、充電發熱

充電過程中發熱，可(ke)能的故障原因有：

1）電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)自身問題(ti)，電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的衰老，內阻變大，電(dian)(dian)(dian)(dian)(dian)解液干(gan)涸(he)，內部(bu)有短路(lu)等造成發熱(re)。電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)隨著使用的次(ci)數增加，這包(bao)括放電(dian)(dian)(dian)(dian)(dian)和(he)充電(dian)(dian)(dian)(dian)(dian)，電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)中的水分子逐(zhu)漸流失，這就(jiu)是(shi)(shi)我們講的電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)析氣、失水，從(cong)而導致電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)在(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)化學反應中發熱(re)；另(ling)外則是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)溶液在(zai)(zai)(zai)充放電(dian)(dian)(dian)(dian)(dian)過(guo)(guo)程(cheng)中形成硫酸結晶、沉淀(dian)粘(zhan)糊在(zai)(zai)(zai)鉛板上，導致電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)電(dian)(dian)(dian)(dian)(dian)阻增大而發熱(re)；這兩類問題(ti)可以(yi)通(tong)過(guo)(guo)加水、去(qu)硫去(qu)極等技術(shu)手(shou)段予以(yi)解決。如(ru)若電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)是(shi)(shi)因短跑(pao)斷格(ge)導致的電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)發熱(re)，那(nei)最好更換新電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)。

2）充(chong)(chong)電(dian)(dian)器(qi)問題，一(yi)般的(de)充(chong)(chong)電(dian)(dian)器(qi)沒有脈(mo)(mo)沖(chong)功(gong)能(neng)，更沒有負脈(mo)(mo)沖(chong)消除極化功(gong)能(neng)，這類充(chong)(chong)電(dian)(dian)器(qi)通常(chang)不(bu)(bu)能(neng)在充(chong)(chong)電(dian)(dian)后期恒(heng)壓，以(yi)至造(zao)成電(dian)(dian)池(chi)(chi)電(dian)(dian)壓超(chao)過允(yun)許值，從而導致電(dian)(dian)池(chi)(chi)大量(liang)析氣(qi)、失(shi)水(shui)、發熱。 現在市場上的(de)普通充(chong)(chong)電(dian)(dian)器(qi)，只是(shi)(shi)(shi)一(yi)昧的(de)恒(heng)功(gong)率充(chong)(chong)電(dian)(dian)，或(huo)(huo)是(shi)(shi)(shi)對電(dian)(dian)池(chi)(chi)內部電(dian)(dian)阻等(deng)情況不(bu)(bu)能(neng)及(ji)時檢測，檢測到了也不(bu)(bu)能(neng)做(zuo)出及(ji)進的(de)充(chong)(chong)電(dian)(dian)調整或(huo)(huo)不(bu)(bu)能(neng)給出最(zui)佳的(de)充(chong)(chong)電(dian)(dian)方案，這些都是(shi)(shi)(shi)充(chong)(chong)電(dian)(dian)過程中導致電(dian)(dian)池(chi)(chi)發熱的(de)原因(yin)。

要從根本(ben)上解決因充(chong)(chong)電(dian)(dian)(dian)器問(wen)題導(dao)致的電(dian)(dian)(dian)池(chi)發熱，就須正確選用電(dian)(dian)(dian)動車充(chong)(chong)電(dian)(dian)(dian)器，電(dian)(dian)(dian)池(chi)的充(chong)(chong)電(dian)(dian)(dian)過程是一(yi)個(ge)電(dian)(dian)(dian)化(hua)學反應過程，在這(zhe)個(ge)過程中，電(dian)(dian)(dian)池(chi)若出現(xian)微量發熱情(qing)況則屬正常(chang)發熱，如若發熱異常(chang)，在電(dian)(dian)(dian)池(chi)性能良好(hao)的情(qing)況下(xia)則屬充(chong)(chong)電(dian)(dian)(dian)器原因。