筆(bi)記本(ben)電池(chi)電量越(yue)用越(yue)少正常嗎 筆(bi)記本(ben)電池(chi)電量計量方法

筆記本電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)電(dian)(dian)(dian)(dian)(dian)量越用(yong)越少正常嗎？要(yao)(yao)解(jie)釋(shi)這(zhe)個問(wen)題(ti)，就得(de)從電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)自身結(jie)(jie)構談起。我(wo)們之(zhi)前了解(jie)了電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的(de)(de)基本結(jie)(jie)構，筆記本電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)是由電(dian)(dian)(dian)(dian)(dian)芯(xin)和(he)管理(li)芯(xin)片構成的(de)(de)。電(dian)(dian)(dian)(dian)(dian)芯(xin)是電(dian)(dian)(dian)(dian)(dian)量的(de)(de)存儲(chu)“倉庫”，管理(li)芯(xin)片則能計算(suan)電(dian)(dian)(dian)(dian)(dian)量和(he)管理(li)充放電(dian)(dian)(dian)(dian)(dian)過程(cheng)。電(dian)(dian)(dian)(dian)(dian)芯(xin)中起作用(yong)的(de)(de)主要(yao)(yao)元素是鋰(li)，這(zhe)是一(yi)種活躍的(de)(de)元素，為了保障安全，只能以離子態(tai)存在(zai)在(zai)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)中。鋰(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)電(dian)(dian)(dian)(dian)(dian)芯(xin)外形跟(gen)普通電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)差不多，但做筆記本電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)時(shi)，往往是成組出現的(de)(de)。我(wo)們常看到(dao)的(de)(de)“四芯(xin)”、“六芯(xin)”電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)就是指電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)里的(de)(de)電(dian)(dian)(dian)(dian)(dian)芯(xin)數。

電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)芯(xin)(xin)(xin)多，意(yi)味著容量也大，高容電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)芯(xin)(xin)(xin)數量一(yi)(yi)般都在八(ba)個左右(you)。之所以(yi)(yi)談到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)芯(xin)(xin)(xin)組，是(shi)(shi)因為(wei)成組的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)芯(xin)(xin)(xin)正是(shi)(shi)導致電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量減少(shao)的(de)“罪魁禍首”。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)芯(xin)(xin)(xin)組中的(de)各個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)芯(xin)(xin)(xin)，其(qi)品(pin)質和(he)放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)水平不(bu)盡(jin)相同(tong)。在放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)以(yi)(yi)后，為(wei)了保持電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)穩定(ding)，管理芯(xin)(xin)(xin)片會檢測到(dao)最差的(de)那一(yi)(yi)個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)芯(xin)(xin)(xin)進行充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)保護。常(chang)此以(yi)(yi)往(wang)，整個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量自(zi)然(ran)會逐(zhu)漸減少(shao)。出現(xian)(xian)這種現(xian)(xian)象后就可(ke)以(yi)(yi)使用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)校正的(de)功能了，這個功能可(ke)以(yi)(yi)平衡(heng)多節電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)所負擔的(de)“工作”。

在這里應該提一(yi)下電(dian)池電(dian)量(liang)的(de)(de)計量(liang)方(fang)(fang)式，常見的(de)(de)方(fang)(fang)法有4種，但一(yi)般來說都是綜合幾種方(fang)(fang)法使用，以(yi)其中一(yi)種為主要計算(suan)方(fang)(fang)法，其余輔助計算(suan)的(de)(de)方(fang)(fang)式實(shi)現電(dian)量(liang)計算(suan)、管理(li)。

開路電壓測量法

這(zhe)種(zhong)方(fang)法是通(tong)過測(ce)量電(dian)(dian)(dian)池(chi)在靜止(zhi)狀態下的(de)電(dian)(dian)(dian)壓數(shu)值(zhi)來計算電(dian)(dian)(dian)池(chi)的(de)剩(sheng)余容量，不過由(you)于鋰離(li)子電(dian)(dian)(dian)池(chi)的(de)靜止(zhi)時電(dian)(dian)(dian)壓與剩(sheng)余容量間(jian)的(de)關(guan)系屬(shu)于非(fei)線性(xing)，因此這(zhe)種(zhong)方(fang)法的(de)測(ce)量值(zhi)并不準確，絕大部(bu)分手機(ji)電(dian)(dian)(dian)池(chi)都采用這(zhe)種(zhong)計算方(fang)法。

庫侖計算法

該(gai)方法(fa)(fa)是通過測量(liang)電(dian)(dian)(dian)池充電(dian)(dian)(dian)和(he)放(fang)電(dian)(dian)(dian)的(de)電(dian)(dian)(dian)流，將電(dian)(dian)(dian)流值與時(shi)間值的(de)乘積進行(xing)積分后計算得到(dao)電(dian)(dian)(dian)池所充進的(de)電(dian)(dian)(dian)量(liang)和(he)所放(fang)出的(de)電(dian)(dian)(dian)量(liang)，庫侖計算法(fa)(fa)是一種較為精確的(de)電(dian)(dian)(dian)量(liang)計算方法(fa)(fa)。

阻抗測量法

它通過測量電池內阻值得到電池的剩余容量值。

綜合查表法

通過設置一個相關表，將電(dian)壓、電(dian)流、溫度等(deng)參(can)數輸入，就可以查詢得到電(dian)池的(de)剩余容量(liang)。

但不(bu)論哪(na)種(zhong)方法，在(zai)充電(dian)時管理(li)(li)芯(xin)(xin)片都遵循(xun)“木(mu)桶原(yuan)理(li)(li)”，以狀態最差(cha)的電(dian)芯(xin)(xin)為準來進行保(bao)護。因此經(jing)常進行電(dian)池校(xiao)正能在(zai)一定程度上保(bao)護電(dian)池、延長電(dian)池整體壽命。