GB/T18287 2000 對鋰(li)電池充電時間和方法的規定：

1、鋰電池標(biao)稱(cheng)電(dian)壓3.7V(3.6V),電(dian)池(chi)(chi)充(chong)電(dian)截止電(dian)壓4.2V(4.1V,依據鋰(li)電(dian)池(chi)(chi)電(dian)芯(xin)的廠(chang)牌有不同的設計)。

2、鋰電(dian)(dian)池充(chong)(chong)電(dian)(dian)方(fang)法：首先恒(heng)流(liu)(liu)(liu)充(chong)(chong)電(dian)(dian)，即(ji)充(chong)(chong)電(dian)(dian)電(dian)(dian)流(liu)(liu)(liu)必定(ding)，而鋰電(dian)(dian)池電(dian)(dian)壓跟(gen)著充(chong)(chong)電(dian)(dian)過程逐步升(sheng)高，當(dang)電(dian)(dian)池端電(dian)(dian)壓抵達4.2V(4.1V時(shi)),改恒(heng)流(liu)(liu)(liu)充(chong)(chong)電(dian)(dian)為恒(heng)壓充(chong)(chong)電(dian)(dian)，即(ji)電(dian)(dian)壓必定(ding)，電(dian)(dian)流(liu)(liu)(liu)依據電(dian)(dian)芯的(de)(de)豐滿程度(du)，跟(gen)著充(chong)(chong)電(dian)(dian)過程的(de)(de)持續(xu)逐步減小(xiao)，當(dang)減小(xiao)到0.01C時(shi)，以為充(chong)(chong)電(dian)(dian)中(zhong)止。 (C是以電(dian)(dian)池標稱容量對照電(dian)(dian)流(liu)(liu)(liu)的(de)(de)一(yi)種(zhong)表(biao)明辦法，如電(dian)(dian)池是1000mAh的(de)(de)容量，1C就(jiu)是充(chong)(chong)電(dian)(dian)電(dian)(dian)流(liu)(liu)(liu)1000mA，留意是mA而不是mAh，0.01C就(jiu)是10mA。)當(dang)然，標準的(de)(de)表(biao)明方(fang)法是0.01C5A,我這兒簡化(hua)了(le)。

3、為(wei)什(shen)么以為(wei)0.01C為(wei)充(chong)電(dian)完畢：這是國家標準(zhun)GB/T18287-2000所規則的(de)(de)(de)，也是評論得出的(de)(de)(de)。從前咱們遍及以20mA為(wei)完畢，郵電(dian)部行業標準(zhun)YD/T998-1999也是這樣規則的(de)(de)(de)，即(ji)不(bu)(bu)論電(dian)池容量(liang)多大，中止電(dian)流都是20mA。國標規則的(de)(de)(de)0.01C有助于充(chong)電(dian)更豐(feng)滿，對廠家一方經過判定(ding)有利。別的(de)(de)(de)，國標規定(ding)了充(chong)電(dian)的(de)(de)(de)時間不(bu)(bu)超(chao)越8小(xiao)時，就是說即(ji)便還(huan)沒(mei)有到達(da)0.01C,8小(xiao)時到了，也以為(wei)充(chong)電(dian)完畢。(質量(liang)沒(mei)問(wen)題的(de)(de)(de)電(dian)池，都應在8小(xiao)時內到達(da)0.01C,質量(liang)不(bu)(bu)好的(de)(de)(de)電(dian)池，等下去也無意(yi)義)，

4、多(duo)大(da)的(de)(de)充(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流算(suan)是(shi)適宜的(de)(de)：理(li)論上(shang)越(yue)小對電(dian)(dian)(dian)池(chi)越(yue)有優(you)點。但你總不(bu)能(neng)為(wei)了一塊(kuai)電(dian)(dian)(dian)池(chi)充(chong)(chong)(chong)電(dian)(dian)(dian)等(deng)3天(tian)吧(ba)。國標規定(ding)的(de)(de)低倍率充(chong)(chong)(chong)電(dian)(dian)(dian)是(shi)0.2C(裁定(ding)充(chong)(chong)(chong)電(dian)(dian)(dian)制式),還以(yi)上(shang)面的(de)(de)1000mAh容量的(de)(de)電(dian)(dian)(dian)池(chi)為(wei)例，就(jiu)是(shi)200mA，那么(me)咱們能(neng)夠(gou)預測出這只電(dian)(dian)(dian)池(chi)5個多(duo)小時能(neng)夠(gou)充(chong)(chong)(chong)飽(bao)。

關(guan)于鋰(li)電池(chi)充電的過錯說法(fa)：因為充放電的次數是(shi)有限的，所以應該將(jiang)手機電池(chi)的電盡可能用光(guang)再充電。

在正常情況(kuang)下，你(ni)應(ying)該有(you)保留(liu)地依照(zhao)鋰(li)電(dian)池(chi)剩(sheng)下電(dian)量用完(wan)再(zai)(zai)充的準則充電(dian)(但(dan)肯定不(bu)(bu)是(shi)用到關機再(zai)(zai)充電(dian))，假定你(ni)的電(dian)池(chi)在你(ni)估計第2天不(bu)(bu)可(ke)能堅持整個白日的時分，就應(ying)該及時開端充電(dian)! 而(er)當你(ni)需要(yao)充電(dian)以敷衍估計行將到來的會導致通訊繁忙的重要(yao)事情，即便在電(dian)池(chi)尚有(you)許多余(yu)電(dian)時，那(nei)么你(ni)也只管提早充電(dian)，因為(wei)你(ni)并(bing)沒有(you)真實(shi)丟失(shi)一次充電(dian)循環壽命(ming)!電(dian)池(chi)剩(sheng)下電(dian)量用完(wan)再(zai)(zai)充的準則并(bing)不(bu)(bu)是(shi)要(yao)你(ni)走向極點(dian)。

和長充(chong)電(dian)相同(tong)相傳甚廣的(de)一個說(shuo)法(fa)，就是”盡(jin)量把手(shou)機電(dian)池(chi)的(de)電(dian)量用完，最好用到(dao)自(zi)動關(guan)機”。這(zhe)種做法(fa)其實只是鎳(nie)鎘電(dian)池(chi)上的(de)做法(fa)，意圖是防(fang)止記憶效應的(de)發生，不幸的(de)是它也在(zai)鋰電(dian)池(chi)上傳播至今。

從前有(you)人(ren)因(yin)為(wei)手機電(dian)(dian)(dian)池電(dian)(dian)(dian)量(liang)過(guo)低(di)的正(zheng)告(gao)出(chu)現后，依然不充(chong)電(dian)(dian)(dian)持續運用(yong)一向用(yong)到自動關機的比如(ru)。成果這(zhe)個比如(ru)中的手機在后來(lai)的充(chong)電(dian)(dian)(dian)及開機中均無(wu)反響，不得不送來(lai)檢修。這(zhe)其實就是因(yin)為(wei)電(dian)(dian)(dian)池因(yin)過(guo)度放(fang)電(dian)(dian)(dian)而導致電(dian)(dian)(dian)壓過(guo)低(di)，以至(zhi)于不具備正(zheng)常(chang)的充(chong)電(dian)(dian)(dian)和開機條件形成的。

實驗經驗證(zheng)明:放電(dian)(dian)(dian)深度到(dao)達(da)100%的(de)鋰(li)電(dian)(dian)(dian)池報廢率為50%(多年的(de)事(shi)實證(zheng)明放電(dian)(dian)(dian)深度達(da)99%以(yi)上的(de)鋰(li)電(dian)(dian)(dian)用修理電(dian)(dian)(dian)源能(neng)激活的(de)也只(zhi)有(you)對折(zhe),其他(ta)對折(zhe)報廢!)

知道鋰(li)電(dian)池充(chong)電(dian)時間，從難易(yi)程度上(shang)說(shuo)，操(cao)作問題不大，了解鋰(li)電(dian)池充(chong)電(dian)時間的來歷更有助于在理論和實踐上(shang)使之愈加(jia)科學化。

理論上(shang)的鋰電池充電時(shi)間是電池標稱(cheng)容量與(yu)電流之比：

鋰(li)電(dian)(dian)池(chi)充(chong)電(dian)(dian)時(shi)間（h）=電(dian)(dian)池(chi)容量（mAh）÷充(chong)電(dian)(dian)電(dian)(dian)流（mA）

可是(shi)，因為充(chong)(chong)電時會有(you)阻(zu)抗(kang)(kang)發(fa)生，為了抵銷(xiao)阻(zu)抗(kang)(kang)的(de)影響(xiang)，實踐充(chong)(chong)電時刻要大(da)于(yu)上述理論充(chong)(chong)電時間(jian)，為了使鋰電池充(chong)(chong)電時間(jian)滿(man)足實踐的(de)滿(man)電要求，一般要依據充(chong)(chong)電電流所占電池容量比值的(de)大(da)小設定(ding)一個大(da)于(yu)1的(de)系數。比如，

當充電(dian)電(dian)流(liu)小于等于電(dian)池容量的5%時(shi)系數為(wei)1.6，此刻

鋰(li)電(dian)池(chi)充電(dian)時間=電(dian)池(chi)容量÷充電(dian)電(dian)流×1.6

以此類推，依據充(chong)電(dian)(dian)電(dian)(dian)流所占(zhan)電(dian)(dian)池容量(liang)份額的大小，鋰電(dian)(dian)池充(chong)電(dian)(dian)時間核算時的系數還有

1.5（5%＜充電(dian)電(dian)流≤10%），

1.3（10%＜充電電流≤15%），

1.2（15%＜充(chong)電電流≤20%），

1.1（20%＜充電電流）。

有(you)用(yong)中(zhong)，便攜式電(dian)(dian)(dian)子產(chan)品(pin)的鋰(li)(li)電(dian)(dian)(dian)池(chi)充(chong)(chong)(chong)電(dian)(dian)(dian)時(shi)(shi)間也(ye)是(shi)(shi)依(yi)照上述公式來(lai)規(gui)定的，對(dui)這些鋰(li)(li)電(dian)(dian)(dian)池(chi)一般都配備有(you)相應(ying)的恒流充(chong)(chong)(chong)電(dian)(dian)(dian)器，這種鋰(li)(li)電(dian)(dian)(dian)池(chi)充(chong)(chong)(chong)電(dian)(dian)(dian)器對(dui)鋰(li)(li)電(dian)(dian)(dian)池(chi)充(chong)(chong)(chong)電(dian)(dian)(dian)時(shi)(shi)刻的操控是(shi)(shi)以滿電(dian)(dian)(dian)指示(shi)燈來(lai)表明的，電(dian)(dian)(dian)池(chi)充(chong)(chong)(chong)滿電(dian)(dian)(dian)時(shi)(shi)會發(fa)出報警(jing)信號(hao)，所以，消(xiao)費者(zhe)只需要依(yi)照說明操作就(jiu)行了，不用(yong)為鋰(li)(li)電(dian)(dian)(dian)池(chi)充(chong)(chong)(chong)電(dian)(dian)(dian)時(shi)(shi)間多久適宜而(er)發(fa)愁。

鋰(li)電池的充電時間(jian)與鋰(li)電池容(rong)量和充電電流(liu)有關

核算公(gong)式如下：充電時間t=電池(chi)電量c/充電電流i

所(suo)以(yi)，假定電(dian)(dian)池的容(rong)量為(wei)2000MAH，充電(dian)(dian)電(dian)(dian)流為(wei)800MAH， 用(yong)充電(dian)(dian)器充電(dian)(dian)的時間理論為(wei)2000/800=2.5小時；

可(ke)是(shi)在實(shi)踐中，充電時(shi)間比理論(lun)時(shi)間長，因為充電時(shi)有能量耗費(fei)。充電電壓的增大能夠進步充電功率。