市面上很多的小型電器設備使用的電池多數是18650鋰電池，由于競爭比較激烈，一些廠家生產的電池質量不是很好，常常會遇到電池出故障的問題。那么18650電池出故障后的修復方法有哪些呢？

1、18650鋰電池表面有鐵銹的修復方法：長時間使用的鋰電池的金屬表面會有一定程度的氧化，導致電池電極生銹，使得電池與用電設備導線接觸不好，鋰電池使用時間變短，而用橡皮棕或其他清潔工具可擦除表面的生銹物質，可以降低電路電阻，提高導電率。

2、冷熱(re)交替法(fa)修(xiu)復(fu)18650鋰電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)：低溫(wen)(wen)能(neng)使鋰電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)內(nei)部(bu)(bu)的電(dian)(dian)(dian)(dian)解液發(fa)生變化(hua)，促進剛剛經(jing)過(guo)(guo)(guo)冷凍的電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)發(fa)生化(hua)學反應。鋰電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的使用(yong)過(guo)(guo)(guo)程(cheng)其(qi)實是一個充放電(dian)(dian)(dian)(dian)過(guo)(guo)(guo)程(cheng)。在這期間，18650電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)內(nei)的陰電(dian)(dian)(dian)(dian)荷和陽電(dian)(dian)(dian)(dian)荷相(xiang)互交撞。電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)之(zhi)所以(yi)(yi)會越來越不經(jing)用(yong)，是因為在正常的室(shi)溫(wen)(wen)下，電(dian)(dian)(dian)(dian)子內(nei)部(bu)(bu)的動能(neng)比較大，因而(er)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)處于活躍狀態，漏電(dian)(dian)(dian)(dian)情況相(xiang)對頻(pin)繁(fan)。而(er)將鋰電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)放入(ru)低溫(wen)(wen)環境里，鋰電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)表面的鋰膜(mo)與電(dian)(dian)(dian)(dian)解液的微觀結構，以(yi)(yi)及它(ta)們的交界面都會發(fa)生明(ming)顯變化(hua)，導致電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)內(nei)部(bu)(bu)暫(zan)不活躍，漏電(dian)(dian)(dian)(dian)流減(jian)少。所以(yi)(yi)再次充電(dian)(dian)(dian)(dian)后，電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)容量(liang)可以(yi)(yi)一定程(cheng)度的恢復(fu)。

18650鋰(li)電(dian)池(chi)的循(xun)環使(shi)用壽命約600多(duo)次(ci)。如果充電(dian)次(ci)數多(duo)了，分子(zi)的熱(re)運動會(hui)使(shi)其(qi)內部分子(zi)排列(lie)微(wei)觀結(jie)(jie)構(gou)逐漸(jian)被(bei)(bei)破(po)(po)壞(huai)，存儲電(dian)荷效率會(hui)漸(jian)漸(jian)降低。而“冷凍(dong)的過程容易破(po)(po)壞(huai)電(dian)池(chi)原(yuan)來的內部結(jie)(jie)構(gou)，短(duan)時(shi)間內或(huo)許可(ke)以增加充載電(dian)荷的能力(li)，但長期使(shi)用未必有(you)效。18650鋰(li)電(dian)池(chi)內的微(wei)觀結(jie)(jie)構(gou)一旦被(bei)(bei)破(po)(po)壞(huai)，再要完(wan)全恢復過來是不可(ke)能的，長期使(shi)用這種方法(fa)會(hui)加速電(dian)池(chi)的損壞(huai)。

3、深度(du)放電(dian)(dian)(dian)法(fa)修(xiu)復電(dian)(dian)(dian)池(chi)：對手機進行深度(du)放電(dian)(dian)(dian)，就是通過耗盡內部(bu)(bu)電(dian)(dian)(dian)能，來(lai)達到(dao)更深程度(du)的(de)再充電(dian)(dian)(dian)，這需要采用(yong)一些非常規的(de)方法(fa)。想辦法(fa)將(jiang)18650電(dian)(dian)(dian)池(chi)與一個(ge)1.5V小燈泡相連，鋰電(dian)(dian)(dian)池(chi)內部(bu)(bu)的(de)電(dian)(dian)(dian)量會傳(chuan)輸到(dao)小燈泡上，直到(dao)全(quan)部(bu)(bu)都放光。電(dian)(dian)(dian)池(chi)需要通過較低的(de)電(dian)(dian)(dian)壓慢慢耗盡電(dian)(dian)(dian)能。放完(wan)電(dian)(dian)(dian)后，再次充電(dian)(dian)(dian)的(de)電(dian)(dian)(dian)池(chi)可以使用(yong)更長時間。

4、高壓充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)方法修復電(dian)(dian)(dian)(dian)(dian)(dian)池：用鋰電(dian)(dian)(dian)(dian)(dian)(dian)池高壓充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)（5V，300MA）充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)5分(fen)(fen)(fen)鐘(zhong)(zhong)，充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)可以(yi)是(shi)手機充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)、充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)頭，但是(shi)不能(neng)用萬能(neng)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，因為萬能(neng)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)要識別電(dian)(dian)(dian)(dian)(dian)(dian)壓，五分(fen)(fen)(fen)鐘(zhong)(zhong)后，再次測(ce)試(shi)電(dian)(dian)(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)(dian)(dian)壓V，如果(guo)電(dian)(dian)(dian)(dian)(dian)(dian)壓升(sheng)到(dao)1V，繼續充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)（每隔5分(fen)(fen)(fen)鐘(zhong)(zhong)一測(ce)電(dian)(dian)(dian)(dian)(dian)(dian)壓）。充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)到(dao)3V，恭喜你！你的電(dian)(dian)(dian)(dian)(dian)(dian)池可以(yi)用萬能(neng)充(chong)(chong)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)了，萬能(neng)充(chong)(chong)這時候會(hui)識別你的電(dian)(dian)(dian)(dian)(dian)(dian)池。

通過以上方法之(zhi)后，你的電池(chi)依然無法恢復一定的使用功能，那沒辦(ban)法了(le)，18650鋰電池(chi)已經是不(bu)可(ke)逆的壞了(le)，直接換電池(chi)吧。