一、電芯容額和額定容額分別是什么意思

1、電芯容額

電芯容(rong)(rong)(rong)(rong)額(e)是(shi)(shi)指(zhi)電(dian)(dian)(dian)池中實際儲存(cun)電(dian)(dian)(dian)能的(de)容(rong)(rong)(rong)(rong)量(liang)。電(dian)(dian)(dian)芯(xin)是(shi)(shi)電(dian)(dian)(dian)池的(de)核心器件(jian)，電(dian)(dian)(dian)芯(xin)容(rong)(rong)(rong)(rong)額(e)是(shi)(shi)指(zhi)電(dian)(dian)(dian)芯(xin)所擁有的(de)真正的(de)儲存(cun)電(dian)(dian)(dian)能的(de)容(rong)(rong)(rong)(rong)量(liang)。由于電(dian)(dian)(dian)池本身(shen)也會存(cun)在一定(ding)的(de)損耗，所以(yi)電(dian)(dian)(dian)池輸出的(de)容(rong)(rong)(rong)(rong)量(liang)常常是(shi)(shi)小于電(dian)(dian)(dian)芯(xin)容(rong)(rong)(rong)(rong)額(e)的(de)。這也是(shi)(shi)為什么(me)在市場(chang)上(shang)(shang)比較(jiao)靠譜的(de)產品，會在包裝上(shang)(shang)標注上(shang)(shang)電(dian)(dian)(dian)芯(xin)容(rong)(rong)(rong)(rong)量(liang)，而(er)不是(shi)(shi)單純的(de)額(e)定(ding)容(rong)(rong)(rong)(rong)量(liang)。

2、額定容額

額定(ding)(ding)容(rong)額是(shi)(shi)指廠家為電(dian)池(chi)(chi)規(gui)定(ding)(ding)的(de)(de)標準(zhun)容(rong)量(liang)，也就是(shi)(shi)電(dian)池(chi)(chi)的(de)(de)正(zheng)常使(shi)用(yong)容(rong)量(liang)。在低功率(lv)使(shi)用(yong)下，電(dian)池(chi)(chi)可承受最長的(de)(de)時(shi)間。例(li)如，一塊標有(you)1500mAh的(de)(de)AA電(dian)池(chi)(chi)，在正(zheng)常情況下，是(shi)(shi)可以(yi)提供1500毫安時(shi)的(de)(de)電(dian)能，但在實際的(de)(de)使(shi)用(yong)過程中(zhong)，電(dian)池(chi)(chi)提供的(de)(de)電(dian)能有(you)可能會比(bi)額定(ding)(ding)容(rong)量(liang)少(shao)一些，這個(ge)因素(su)涉(she)及到電(dian)池(chi)(chi)內阻、放電(dian)倍(bei)率(lv)等復雜因素(su)。

二、電芯容額和額定容額的區別

電芯容額往往小于額定容額。電池容額，又叫實際容額，一般指的是電池在放電的狀態下，它所具備的當前的實際容量。實際容量往往是會不斷變化的，比如在夏天氣溫較高時它的分子比較活躍，此時的電芯容額較(jiao)高，而在冬天(tian)氣溫較(jiao)低時活躍度(du)不夠(gou)，容額就會變(bian)低。

額(e)定容(rong)(rong)額(e)是(shi)(shi)電池(chi)上標注的(de)容(rong)(rong)量，比(bi)如我們使用(yong)(yong)的(de)手機所用(yong)(yong)的(de)鋰電池(chi)的(de)容(rong)(rong)量通常會有一個(ge)額(e)定值。在實(shi)際使用(yong)(yong)中，電池(chi)的(de)實(shi)際容(rong)(rong)量是(shi)(shi)要比(bi)額(e)定容(rong)(rong)額(e)低(di)，原因就是(shi)(shi)使用(yong)(yong)過程中很難達(da)到最理(li)想的(de)狀(zhuang)態，會導致實(shi)際容(rong)(rong)量往往達(da)不到額(e)定容(rong)(rong)額(e)。另外，電池(chi)額(e)定容(rong)(rong)額(e)是(shi)(shi)指標準所標稱電池(chi)的(de)容(rong)(rong)量值大小，而(er)電芯容(rong)(rong)額(e)是(shi)(shi)指電池(chi)在一定電流值放電時(shi)的(de)實(shi)際容(rong)(rong)量大小。