電(dian)(dian)動車(che)電(dian)(dian)池(chi)充電(dian)(dian)為(wei)何發(fa)熱(re)? 電(dian)(dian)動車(che)電(dian)(dian)池(chi)發(fa)熱(re)原因

據電(dian)(dian)(dian)(dian)動(dong)(dong)車(che)車(che)主(zhu)反映電(dian)(dian)(dian)(dian)動(dong)(dong)車(che)電(dian)(dian)(dian)(dian)池在充電(dian)(dian)(dian)(dian)時(shi)有發(fa)(fa)(fa)(fa)熱(re)現象，現在正是溫度上升的(de)(de)時(shi)節，電(dian)(dian)(dian)(dian)動(dong)(dong)車(che)電(dian)(dian)(dian)(dian)池在充電(dian)(dian)(dian)(dian)時(shi)發(fa)(fa)(fa)(fa)熱(re)的(de)(de)幾(ji)率將(jiang)逐漸增加(jia)，它(ta)又將(jiang)成(cheng)為電(dian)(dian)(dian)(dian)動(dong)(dong)車(che)車(che)主(zhu)的(de)(de)憂心之(zhi)患！因(yin)此，我在這里(li)為廣(guang)大(da)電(dian)(dian)(dian)(dian)動(dong)(dong)車(che)車(che)主(zhu)簡單分析(xi)一下電(dian)(dian)(dian)(dian)池發(fa)(fa)(fa)(fa)熱(re)的(de)(de)原因(yin)，以為電(dian)(dian)(dian)(dian)池發(fa)(fa)(fa)(fa)熱(re)又不(bu)知原因(yin)的(de)(de)用(yong)戶解惑，希望能對大(da)家有所助益!

電動車(che)電池發(fa)熱(re)有(you)兩種情況，一(yi)種是(shi)放(fang)電發(fa)熱(re)，另(ling)一(yi)種是(shi)充電發(fa)熱(re)。

1、放電發熱

放電發熱的原因主要有(you)：放電過快，有(you)可能是(shi)電池容量小，放電電流(liu)長時間超過0．5C。

1）當電(dian)(dian)(dian)動機額定電(dian)(dian)(dian)壓值低(di)，電(dian)(dian)(dian)池(chi)容(rong)量較(jiao)小，工作電(dian)(dian)(dian)流偏大時，電(dian)(dian)(dian)壓會(hui)急劇降低(di)，容(rong)量也很快消耗，對電(dian)(dian)(dian)池(chi)最(zui)為不利。

2）電(dian)(dian)(dian)池的(de)電(dian)(dian)(dian)化學(xue)反應(ying)速度(du)僅能夠維(wei)持行車(che)，經常做(zuo)整循環充(chong)放電(dian)(dian)(dian)，稍不注意便會超消(xiao)耗(hao)(hao)。遇到迎風上坡，耗(hao)(hao)電(dian)(dian)(dian)甚大，迫使電(dian)(dian)(dian)池極板急劇反應(ying)，電(dian)(dian)(dian)池外殼的(de)熱度(du)較(jiao)高(gao)，會使電(dian)(dian)(dian)池受(shou)到損傷，縮短壽命。

3）比較理想的(de)是(shi)電(dian)(dian)(dian)(dian)池(chi)的(de)電(dian)(dian)(dian)(dian)化學反應速度(du)充分地供給足夠的(de)電(dian)(dian)(dian)(dian)能(neng)。電(dian)(dian)(dian)(dian)池(chi)的(de)外(wai)殼沒有異(yi)常熱度(du)，說明電(dian)(dian)(dian)(dian)池(chi)容(rong)量是(shi)足夠的(de)。

2、充電發熱

充電過程中(zhong)發熱(re)，可能的故障(zhang)原因有：

1）電(dian)池(chi)(chi)(chi)自身問題(ti)(ti)，電(dian)池(chi)(chi)(chi)的(de)衰老，內阻(zu)變大，電(dian)解液干涸，內部有短路等(deng)造(zao)成(cheng)發熱(re)。電(dian)池(chi)(chi)(chi)隨著使用的(de)次數(shu)增(zeng)加，這(zhe)包(bao)括放電(dian)和充電(dian)，電(dian)池(chi)(chi)(chi)中的(de)水(shui)分子(zi)逐漸流(liu)失(shi)，這(zhe)就是(shi)我們講的(de)電(dian)池(chi)(chi)(chi)析氣、失(shi)水(shui)，從而(er)導致電(dian)池(chi)(chi)(chi)在(zai)電(dian)化學反應(ying)中發熱(re)；另(ling)外(wai)則是(shi)電(dian)池(chi)(chi)(chi)溶(rong)液在(zai)充放電(dian)過程中形成(cheng)硫(liu)酸結(jie)晶、沉淀粘糊在(zai)鉛(qian)板上，導致電(dian)池(chi)(chi)(chi)電(dian)阻(zu)增(zeng)大而(er)發熱(re)；這(zhe)兩類問題(ti)(ti)可以通過加水(shui)、去(qu)硫(liu)去(qu)極等(deng)技術(shu)手(shou)段予(yu)以解決。如若電(dian)池(chi)(chi)(chi)是(shi)因短跑斷格導致的(de)電(dian)池(chi)(chi)(chi)發熱(re)，那最好更換(huan)新電(dian)池(chi)(chi)(chi)。

2）充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器問題，一(yi)般的(de)(de)(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器沒有(you)脈沖(chong)功(gong)能(neng)(neng)，更沒有(you)負脈沖(chong)消除極化功(gong)能(neng)(neng)，這類充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器通常不能(neng)(neng)在充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)后(hou)期恒壓，以至造成電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)(dian)(dian)(dian)壓超過允許值，從(cong)而(er)導致(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)大量析氣、失水、發熱(re)。 現在市場上(shang)的(de)(de)(de)(de)普(pu)通充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器，只是(shi)一(yi)昧的(de)(de)(de)(de)恒功(gong)率充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，或是(shi)對電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)內部電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)等情況不能(neng)(neng)及(ji)時檢(jian)測，檢(jian)測到了也不能(neng)(neng)做(zuo)出及(ji)進的(de)(de)(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)調整(zheng)或不能(neng)(neng)給出最佳的(de)(de)(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)方案，這些(xie)都是(shi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)過程中導致(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)發熱(re)的(de)(de)(de)(de)原因(yin)。

要從根本上解決因(yin)充(chong)(chong)電(dian)(dian)器(qi)問題(ti)導致(zhi)的(de)電(dian)(dian)池(chi)發(fa)(fa)熱(re)(re)，就須正(zheng)確選用電(dian)(dian)動車(che)充(chong)(chong)電(dian)(dian)器(qi)，電(dian)(dian)池(chi)的(de)充(chong)(chong)電(dian)(dian)過程是(shi)一個電(dian)(dian)化(hua)學反應過程，在(zai)這個過程中，電(dian)(dian)池(chi)若(ruo)出(chu)現微(wei)量發(fa)(fa)熱(re)(re)情況則屬(shu)正(zheng)常(chang)(chang)發(fa)(fa)熱(re)(re)，如(ru)若(ruo)發(fa)(fa)熱(re)(re)異常(chang)(chang)，在(zai)電(dian)(dian)池(chi)性能良好的(de)情況下(xia)則屬(shu)充(chong)(chong)電(dian)(dian)器(qi)原因(yin)。