蓄電池修復方法有哪些
1、水療法
對已硫化(hua)電(dian)(dian)(dian)(dian)池(chi),可以先將電(dian)(dian)(dian)(dian)池(chi)放電(dian)(dian)(dian)(dian),倒出原電(dian)(dian)(dian)(dian)解液(ye)(ye)(ye)并注入密度(du)(du)在1.10g/cm3以下(xia)(xia)較(jiao)稀電(dian)(dian)(dian)(dian)解液(ye)(ye)(ye),即向電(dian)(dian)(dian)(dian)池(chi)中加(jia)水稀釋電(dian)(dian)(dian)(dian)解液(ye)(ye)(ye),以提高硫酸(suan)鉛的溶(rong)解度(du)(du)。采用20h率(lv)以下(xia)(xia)的電(dian)(dian)(dian)(dian)流,在液(ye)(ye)(ye)溫不超(chao)過20℃~40℃的范(fan)圍(wei)內較(jiao)長時(shi)間(jian)充(chong)電(dian)(dian)(dian)(dian),最后(hou)在充(chong)足電(dian)(dian)(dian)(dian)情況下(xia)(xia)用稍高電(dian)(dian)(dian)(dian)解液(ye)(ye)(ye)調整電(dian)(dian)(dian)(dian)池(chi)內電(dian)(dian)(dian)(dian)解液(ye)(ye)(ye)密度(du)(du)至(zhi)標準溶(rong)液(ye)(ye)(ye)濃度(du)(du),一般硫化(hua)現象可解除,容量恢復(fu)至(zhi)80%以上可認為修復(fu)成功(gong)。
此法(fa)機理(li),用降低(di)酸液密度(du)提(ti)高硫酸鹽的溶度(du)積,采取小電流長時(shi)間充電以(yi)降低(di)歐姆極化(hua)(hua)延緩水分(fen)解電壓的提(ti)早(zao)出現(xian),最終使硫化(hua)(hua)現(xian)象在溶解和轉化(hua)(hua)為活性物質中逐(zhu)漸減輕或消除。
此法特點對于加水蓄電池比較適用,對于硫化嚴重現象亦可(ke)反復處理,無須(xu)投(tou)資設備即(ji)可(ke)自行修復,缺點是過(guo)程太繁瑣對密(mi)封電池不太實用。
2、淺循環充電法
對已硫(liu)化電池(chi),采用大電流5h率以(yi)內電流,對電池(chi)充(chong)電至稍過充(chong)狀(zhuang)態控制液溫不(bu)超過40度為(wei)宜(yi),然后放電30%,如此反復數次可減輕和消(xiao)除硫(liu)化現(xian)象。
此(ci)法(fa)機理(li),用過(guo)充(chong)電析出氣體對極板表面輕微硫化(hua)鹽沖刷,使(shi)其脫附溶解并轉化(hua)為活性物質。
此(ci)法特點,對(dui)于輕微(wei)硫化(hua)可明顯修復。但對(dui)老(lao)電池不適用,因為在(zai)析出氣體沖刷(shua)硫酸鹽的(de)同時也對(dui)正極(ji)板的(de)活(huo)性物產(chan)生強(qiang)烈沖刷(shua),使活(huo)性物質變軟甚至脫落(luo)。
3、修復儀修復
對(dui)(dui)于硫(liu)(liu)化(hua)電(dian)(dian)(dian)池,可(ke)用一(yi)些專用的(de)(de)(de)脈(mo)(mo)沖修(xiu)(xiu)復儀對(dui)(dui)電(dian)(dian)(dian)池充(chong)(chong)(chong)(chong)(chong)放電(dian)(dian)(dian)數次來(lai)消除(chu)硫(liu)(liu)化(hua)。從固體(ti)物理上(shang)來(lai)講,任何絕緣層在(zai)足夠(gou)(gou)高(gao)的(de)(de)(de)電(dian)(dian)(dian)壓(ya)(ya)下(xia)都可(ke)以(yi)擊(ji)穿(chuan)。一(yi)旦絕緣層被擊(ji)穿(chuan),就(jiu)會由絕緣狀態轉變為導電(dian)(dian)(dian)狀態。如(ru)(ru)果對(dui)(dui)電(dian)(dian)(dian)導差阻值大(da)的(de)(de)(de)硫(liu)(liu)酸鹽層施加瞬間的(de)(de)(de)高(gao)電(dian)(dian)(dian)壓(ya)(ya),就(jiu)可(ke)以(yi)擊(ji)穿(chuan)大(da)的(de)(de)(de)硫(liu)(liu)酸鉛(qian)結晶。如(ru)(ru)果這(zhe)(zhe)個高(gao)電(dian)(dian)(dian)壓(ya)(ya)足夠(gou)(gou)短(duan),并且(qie)進行限(xian)流(liu)(liu),在(zai)打穿(chuan)硫(liu)(liu)化(hua)層的(de)(de)(de)情形下(xia),控制充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(liu)適(shi)當,就(jiu)不(bu)會引起電(dian)(dian)(dian)池析(xi)氣。電(dian)(dian)(dian)池析(xi)氣量取決于電(dian)(dian)(dian)池的(de)(de)(de)端電(dian)(dian)(dian)壓(ya)(ya)以(yi)及充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)大(da)小,如(ru)(ru)果脈(mo)(mo)沖寬度足夠(gou)(gou)短(duan),占空比(bi)夠(gou)(gou)大(da),就(jiu)可(ke)以(yi)在(zai)保證擊(ji)穿(chuan)粗大(da)硫(liu)(liu)酸鉛(qian)結晶的(de)(de)(de)條件下(xia),同(tong)時發生的(de)(de)(de)微(wei)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)來(lai)不(bu)及形成析(xi)氣,如(ru)(ru)果含有負脈(mo)(mo)沖去(qu)極(ji)化(hua),就(jiu)更能保證在(zai)擊(ji)穿(chuan)硫(liu)(liu)酸鹽層時極(ji)板的(de)(de)(de)氣體(ti)析(xi)出,這(zhe)(zhe)樣就(jiu)實現了脈(mo)(mo)沖消除(chu)硫(liu)(liu)化(hua)。此法(fa)特點,市場(chang)上(shang)的(de)(de)(de)脈(mo)(mo)沖修(xiu)(xiu)復充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)參差不(bu)齊(qi),很多脈(mo)(mo)沖充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器(qi)甚至是(shi)專用修(xiu)(xiu)復儀的(de)(de)(de)脈(mo)(mo)寬比(bi)、占空比(bi)、負脈(mo)(mo)沖設(she)計得并不(bu)合理不(bu)能到去(qu)硫(liu)(liu)化(hua)的(de)(de)(de)作用。
4、納米碳溶膠電池活化劑修復
納米碳(tan)(tan)(tan)溶膠是納米碳(tan)(tan)(tan)材料(liao)的一種類型。納米碳(tan)(tan)(tan)材料(liao)是指(zhi)分散相(xiang)尺度至少有一維小于100nm的碳(tan)(tan)(tan)材料(liao)。在電(dian)(dian)場的作(zuo)用下,活(huo)(huo)化(hua)(hua)劑的活(huo)(huo)性成份能(neng)固化(hua)(hua)極(ji)(ji)板(ban);崩解(jie)不可逆硫酸鹽結晶;均勻地吸附在極(ji)(ji)板(ban)表面形成保(bao)護膜,防止極(ji)(ji)板(ban)活(huo)(huo)性物質脫落和極(ji)(ji)板(ban)硫化(hua)(hua)、極(ji)(ji)化(hua)(hua)、鉛枝晶化(hua)(hua)的形成;激活(huo)(huo)電(dian)(dian)池的活(huo)(huo)性物質;降低電(dian)(dian)池內阻,增進電(dian)(dian)池電(dian)(dian)化(hua)(hua)學反應。此類修(xiu)(xiu)復(fu)液只對電(dian)(dian)池的修(xiu)(xiu)復(fu)效(xiao)果較(jiao)好,修(xiu)(xiu)復(fu)后的電(dian)(dian)池能(neng)用12個月以(yi)上。
如何判斷蓄電池是否需要修復
1、電動車行程開始縮短(或電池容量不低于70%),說明電動車電池開始失水和(he)硫化(hua),應補(bu)水或添加小銅匠納米(mi)碳溶膠電(dian)池(chi)活化(hua)劑(ji)。
2、電動車行程縮短一半以內(或電瓶(ping)池(chi)量不低于50%),說明電池(chi)極板硫(liu)化嚴重,輕度軟化。應(ying)馬上添加小銅(tong)匠(jiang)納米碳溶膠電池(chi)活化劑或各類電池(chi)修復液配合脈沖電池(chi)修復儀修復。
3、電(dian)(dian)(dian)動車行程縮短一半(ban)以上(或電(dian)(dian)(dian)池容量低于50%),說明電(dian)(dian)(dian)池極(ji)板硫化(hua),軟化(hua)嚴重。添加小銅匠納米碳(tan)溶(rong)膠電(dian)(dian)(dian)池活(huo)化(hua)劑配合脈沖修復(fu)(fu)儀修復(fu)(fu)。
4、電(dian)(dian)動車行程(cheng)縮(suo)短3/4以上(或電(dian)(dian)池容量低(di)于30%,電(dian)(dian)池外形起鼓,漏液),放棄修復,予以報(bao)廢處(chu)理。
什么樣的電池故障能夠修復
電池故障分為好多種,比如說硫酸鹽化,失水,斷格,極板軟化脫落,內部短路斷路等,在這些故障當中,只有硫酸鹽化和失水兩種故障可以分別通過脈沖修復和補水手段進行一定程度的修復。方法比較簡單也有一定的效果。實際當中出現這兩種問題的機率是非常小的。至于其它類型的故障,在不分解電動車電池更換極板(ban)的(de)情(qing)況(kuang)下是無法(fa)修復的(de),即便是想要分解電池(chi),僅(jin)憑個人(ren)的(de)技術,設備,再想完整無痕的(de)裝回去就很難了(le)。