筆記本電(dian)池(chi)電(dian)量(liang)越(yue)(yue)用越(yue)(yue)少正常嗎 筆記本電(dian)池(chi)電(dian)量(liang)計量(liang)方法

筆記(ji)本電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)電(dian)(dian)(dian)(dian)(dian)量越(yue)(yue)用越(yue)(yue)少正常(chang)嗎(ma)？要(yao)(yao)解(jie)釋這個問(wen)題，就得從電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的(de)自(zi)身結構(gou)(gou)談起(qi)(qi)。我們之前了(le)解(jie)了(le)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的(de)基本結構(gou)(gou)，筆記(ji)本電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)是(shi)(shi)由電(dian)(dian)(dian)(dian)(dian)芯(xin)和(he)管理芯(xin)片構(gou)(gou)成的(de)。電(dian)(dian)(dian)(dian)(dian)芯(xin)是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)量的(de)存儲“倉庫”，管理芯(xin)片則能(neng)(neng)計算(suan)電(dian)(dian)(dian)(dian)(dian)量和(he)管理充放電(dian)(dian)(dian)(dian)(dian)過程。電(dian)(dian)(dian)(dian)(dian)芯(xin)中(zhong)起(qi)(qi)作用的(de)主要(yao)(yao)元素是(shi)(shi)鋰(li)，這是(shi)(shi)一種活(huo)躍的(de)元素，為了(le)保障安全，只(zhi)能(neng)(neng)以離(li)子(zi)態存在在電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)中(zhong)。鋰(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)電(dian)(dian)(dian)(dian)(dian)芯(xin)外形跟普通電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)差不(bu)多，但做筆記(ji)本電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)時，往往是(shi)(shi)成組出現的(de)。我們常(chang)看到的(de)“四芯(xin)”、“六芯(xin)”電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)就是(shi)(shi)指電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)里的(de)電(dian)(dian)(dian)(dian)(dian)芯(xin)數(shu)。

電(dian)(dian)(dian)(dian)芯(xin)(xin)多(duo)，意味(wei)著容量(liang)也大，高(gao)容電(dian)(dian)(dian)(dian)池(chi)(chi)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)芯(xin)(xin)數(shu)量(liang)一(yi)般都在八個左右。之所以(yi)(yi)談到(dao)電(dian)(dian)(dian)(dian)芯(xin)(xin)組，是(shi)因(yin)為成組的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)芯(xin)(xin)正(zheng)是(shi)導致電(dian)(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)(dian)量(liang)減少(shao)的(de)(de)(de)(de)“罪魁禍首”。電(dian)(dian)(dian)(dian)芯(xin)(xin)組中的(de)(de)(de)(de)各個電(dian)(dian)(dian)(dian)芯(xin)(xin)，其品質和放(fang)電(dian)(dian)(dian)(dian)水平不盡相(xiang)同(tong)。在放(fang)電(dian)(dian)(dian)(dian)以(yi)(yi)后(hou)，為了(le)保(bao)持電(dian)(dian)(dian)(dian)壓穩定，管理芯(xin)(xin)片會(hui)檢測到(dao)最差的(de)(de)(de)(de)那一(yi)個電(dian)(dian)(dian)(dian)芯(xin)(xin)進(jin)行充電(dian)(dian)(dian)(dian)保(bao)護。常(chang)此(ci)以(yi)(yi)往，整個電(dian)(dian)(dian)(dian)池(chi)(chi)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)量(liang)自(zi)然會(hui)逐漸減少(shao)。出現(xian)這種現(xian)象后(hou)就可以(yi)(yi)使用電(dian)(dian)(dian)(dian)池(chi)(chi)校正(zheng)的(de)(de)(de)(de)功(gong)能了(le)，這個功(gong)能可以(yi)(yi)平衡多(duo)節電(dian)(dian)(dian)(dian)池(chi)(chi)所負擔的(de)(de)(de)(de)“工(gong)作(zuo)”。

在這里(li)應該提一(yi)下電池電量的(de)計(ji)(ji)量方(fang)(fang)式，常見(jian)的(de)方(fang)(fang)法(fa)有4種(zhong)，但一(yi)般(ban)來說都是綜合幾種(zhong)方(fang)(fang)法(fa)使用，以其(qi)中一(yi)種(zhong)為主要計(ji)(ji)算方(fang)(fang)法(fa)，其(qi)余輔助計(ji)(ji)算的(de)方(fang)(fang)式實現電量計(ji)(ji)算、管理。

開路電壓測量法

這種(zhong)方(fang)(fang)法是(shi)通過測(ce)量(liang)電(dian)(dian)池(chi)(chi)在靜(jing)止狀(zhuang)態(tai)下的(de)電(dian)(dian)壓數值(zhi)來(lai)計(ji)(ji)算(suan)電(dian)(dian)池(chi)(chi)的(de)剩(sheng)余容(rong)(rong)量(liang)，不過由于(yu)鋰離子電(dian)(dian)池(chi)(chi)的(de)靜(jing)止時(shi)電(dian)(dian)壓與剩(sheng)余容(rong)(rong)量(liang)間的(de)關系屬于(yu)非(fei)線性，因此這種(zhong)方(fang)(fang)法的(de)測(ce)量(liang)值(zhi)并不準確，絕(jue)大部分手機電(dian)(dian)池(chi)(chi)都(dou)采用(yong)這種(zhong)計(ji)(ji)算(suan)方(fang)(fang)法。

庫侖計算法

該(gai)方(fang)法是(shi)(shi)通(tong)過測量(liang)電(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)和放電(dian)(dian)(dian)的(de)電(dian)(dian)(dian)流(liu)，將電(dian)(dian)(dian)流(liu)值與時(shi)間(jian)值的(de)乘積(ji)進行積(ji)分后計(ji)算(suan)(suan)得到電(dian)(dian)(dian)池(chi)所充(chong)進的(de)電(dian)(dian)(dian)量(liang)和所放出的(de)電(dian)(dian)(dian)量(liang)，庫侖計(ji)算(suan)(suan)法是(shi)(shi)一種較為精(jing)確(que)的(de)電(dian)(dian)(dian)量(liang)計(ji)算(suan)(suan)方(fang)法。

阻抗測量法

它通過測(ce)量(liang)電池(chi)內阻值得(de)到電池(chi)的剩余容量(liang)值。

綜合查表法

通過設置一個相關表，將電(dian)壓、電(dian)流(liu)、溫度等參數輸(shu)入，就(jiu)可(ke)以(yi)查詢得到電(dian)池的剩(sheng)余容量。

但不論哪種方法(fa)，在充電(dian)時管(guan)理(li)芯(xin)片都遵循(xun)“木桶原理(li)”，以(yi)狀(zhuang)態最差的(de)電(dian)芯(xin)為(wei)準(zhun)來進行保(bao)護(hu)。因此經常進行電(dian)池(chi)(chi)校正能(neng)在一(yi)定程(cheng)度上保(bao)護(hu)電(dian)池(chi)(chi)、延長(chang)電(dian)池(chi)(chi)整(zheng)體壽命。