什么叫涓流充電?鋰電池需要涓流(liu)充(chong)電(dian)(dian)嗎？涓流(liu)充(chong)電(dian)(dian)是指(zhi)鋰(li)電(dian)(dian)池充(chong)滿(man)后(hou)進行小電(dian)(dian)流(liu)充(chong)電(dian)(dian)，能讓電(dian)(dian)子保持流(liu)動，延長電(dian)(dian)子使用壽命(ming)。涓流(liu)充(chong)電(dian)(dian)的效率太低，一般是在最后(hou)百(bai)分(fen)之五(wu)進行，那百(bai)分(fen)之五(wu)的電(dian)(dian)往(wang)往(wang)要充(chong)幾(ji)小時。

什么叫涓流充電?

涓流(liu)(liu)充(chong)電(dian)(dian)是用來(lai)(lai)彌補電(dian)(dian)池在充(chong)滿(man)電(dian)(dian)后(hou)由于(yu)自放電(dian)(dian)而造(zao)成(cheng)的(de)容量損失。一般(ban)采用脈沖電(dian)(dian)流(liu)(liu)充(chong)電(dian)(dian)來(lai)(lai)實現上述目的(de)。為(wei)補償自放電(dian)(dian)，使蓄(xu)電(dian)(dian)池保持在近似完(wan)全充(chong)電(dian)(dian)狀態的(de)連續小(xiao)電(dian)(dian)流(liu)(liu)充(chong)電(dian)(dian)。又稱維護充(chong)電(dian)(dian)。電(dian)(dian)信裝置(zhi)、信號系(xi)統等的(de)直(zhi)流(liu)(liu)電(dian)(dian)源系(xi)統的(de)蓄(xu)電(dian)(dian)池，在完(wan)全充(chong)電(dian)(dian)后(hou)多處于(yu)涓流(liu)(liu)充(chong)電(dian)(dian)狀態，以備放電(dian)(dian)時(shi)使用。

手機鋰電(dian)(dian)池(chi)充(chong)(chong)(chong)電(dian)(dian)全(quan)過程包(bao)括(kuo)快速(su)充(chong)(chong)(chong)電(dian)(dian)、連續式充(chong)(chong)(chong)電(dian)(dian)、涓(juan)流充(chong)(chong)(chong)電(dian)(dian)三個階段(duan)。理論上(shang)說，涓(juan)流充(chong)(chong)(chong)電(dian)(dian)是(shi)指(zhi)一種充(chong)(chong)(chong)電(dian)(dian)速(su)率(lv)高至使電(dian)(dian)池(chi)完全(quan)充(chong)(chong)(chong)滿電(dian)(dian)、低至可(ke)避免過度(du)充(chong)(chong)(chong)電(dian)(dian)的充(chong)(chong)(chong)電(dian)(dian)方式。維(wei)持充(chong)(chong)(chong)電(dian)(dian)也是(shi)描(miao)述涓(juan)流充(chong)(chong)(chong)電(dian)(dian)的一種方式。許多電(dian)(dian)池(chi)制造商(shang)建議不要(yao)長(chang)期使用涓(juan)流充(chong)(chong)(chong)電(dian)(dian)。

如(ru)果(guo)使(shi)用(yong)涓流充(chong)(chong)電(dian)(dian)(dian)(dian)，那(nei)么充(chong)(chong)電(dian)(dian)(dian)(dian)速(su)率(lv)就會(hui)非常低，并(bing)且有(you)時斷斷續續。當給電(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)時，最好的(de)(de)(de)智能充(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)只能進行臨時的(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)速(su)率(lv)變(bian)化。它們沒(mei)有(you)連(lian)續的(de)(de)(de)低速(su)率(lv)充(chong)(chong)電(dian)(dian)(dian)(dian)功能。一些電(dian)(dian)(dian)(dian)池(chi)經銷商說，如(ru)果(guo)進行長期的(de)(de)(de)涓流充(chong)(chong)電(dian)(dian)(dian)(dian)，只有(you)十分之一的(de)(de)(de)電(dian)(dian)(dian)(dian)池(chi)能量不會(hui)受到傷害。然(ran)而，我們還(huan)沒(mei)有(you)見到任何廠(chang)商進行這樣的(de)(de)(de)測(ce)試。

鋰電(dian)池需要(yao)涓流充電(dian)嗎(ma)？

一般(ban)(ban)來(lai)講鋰電(dian)(dian)池在使用中隨著電(dian)(dian)量的(de)釋放，電(dian)(dian)壓下降，電(dian)(dian)池的(de)化(hua)學活(huo)性也會隨之降低。從保護鋰電(dian)(dian)池壽命角(jiao)度(du)考(kao)慮，常規(gui)鋰電(dian)(dian)池的(de)充電(dian)(dian)一般(ban)(ban)會經(jing)過涓流(liu)充電(dian)(dian)（低壓預充）、恒(heng)(heng)流(liu)充電(dian)(dian)、恒(heng)(heng)壓充電(dian)(dian)以及充電(dian)(dian)終止的(de)等四個階段。

涓(juan)流(liu)(liu)充(chong)(chong)電(dian)(dian)(dian)用來對完全(quan)放電(dian)(dian)(dian)的(de)鋰電(dian)(dian)(dian)池(chi)單元(yuan)進行預充(chong)(chong)(恢復(fu)性充(chong)(chong)電(dian)(dian)(dian))。在電(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)壓低于3V左(zuo)右時采用涓(juan)流(liu)(liu)充(chong)(chong)電(dian)(dian)(dian)，涓(juan)流(liu)(liu)充(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(liu)是恒流(liu)(liu)充(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(liu)的(de)十分之一即(ji)0.1c(以恒定充(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(liu)為1A舉例(li)，則涓(juan)流(liu)(liu)充(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(liu)為100mA)。

鋰電池充電方法

第(di)一、初次充電時(shi)，與平(ping)常充電一致，無需特別對(dui)待，充電八到(dao)十二(er)小時(shi)即可(ke)。

第二、必(bi)須使用鋰電(dian)池(chi)廠(chang)家所提供的專用充(chong)電(dian)器進行充(chong)電(dian)，充(chong)電(dian)時要(yao)先將充(chong)電(dian)器的輸出端口連接電(dian)池(chi)，再將充(chong)電(dian)器連接電(dian)源。

第(di)三、由于鋰電池(chi)無記憶效應，可以隨用隨充(chong)(chong)，這對電池(chi)的(de)壽命是(shi)有好處(chu)的(de)，建議每次充(chong)(chong)電八(ba)到十二小(xiao)時(shi)即(ji)可，最長不要超過一天時(shi)間(jian)。

第四、在長期不使(shi)用的(de)情況下(xia)，需每兩(liang)個月(yue)為(wei)鋰電(dian)(dian)池充(chong)電(dian)(dian)兩(liang)小時，否(fou)則會造成電(dian)(dian)池性能(neng)下(xia)降。此外，盡量不要當(dang)電(dian)(dian)池的(de)電(dian)(dian)量完全放(fang)完后再進行充(chong)電(dian)(dian)，最好隨(sui)用隨(sui)充(chong)、淺充(chong)淺放(fang)。

對(dui)于鋰電(dian)池來說，充電(dian)方法(fa)(fa)對(dui)其性(xing)能影響很大，合理的充電(dian)方法(fa)(fa)可延長鋰電(dian)池的壽命、提高充電(dian)效(xiao)率。