充電電池評測分為自我評測與比較評測兩種參數體系。自我評測就是對一個品牌的充電電池評(ping)測(ce)(ce)自身部分性(xing)能，而(er)比較評(ping)測(ce)(ce)則(ze)是對于(yu)兩(liang)種或者(zhe)兩(liang)種以(yi)上(shang)品(pin)牌相同標稱容量的(de)電池(chi)(chi)就某一個性(xing)能參數進行(xing)的(de)比較。充(chong)電電池(chi)(chi)評(ping)測(ce)(ce)是描述電池(chi)(chi)客觀(guan)情況的(de)重要手段，一般情況下，進行(xing)充(chong)電電池(chi)(chi)評(ping)測(ce)(ce)需(xu)要專門的(de)檢測(ce)(ce)設(she)備，故(gu)而(er)在實驗(yan)(yan)室檢驗(yan)(yan)為好，這樣可(ke)以(yi)縮小誤差。

　　無論是(shi)(shi)自我評測(ce)還是(shi)(shi)比(bi)較評測(ce)，充電(dian)電(dian)池評測(ce)都要有兩個前提條件，一(yi)是(shi)(shi)工作溫(wen)度在常溫(wen)范圍內，二(er)是(shi)(shi)充電(dian)電(dian)池必須(xu)是(shi)(shi)新電(dian)。

　　對于充電電池評測中的自我評測，電池生產廠家的著重點往往并(bing)不完(wan)全相同：有的囊(nang)括所(suo)有性(xing)能參數，有的則(ze)僅測試(shi)(shi)與容量相關的參數，有的會(hui)在(zai)這(zhe)個基(ji)礎上加上安全性(xing)能測試(shi)(shi)。

　　不過，對于比較評測，則基本上是圍繞著與容量相關的參數而進行。這時的前提條件，除了都是新電外，要注意所有設置條件的一致性，如溫度、電流、電壓、靜(jing)置時間(jian)、循環(huan)次數(shu)、檢(jian)測柜型(xing)號等所(suo)有充(chong)電電池評測的環(huan)境必須都是(shi)一樣的。

　　在比較評測中，主要測試(shi)三個參數(shu)：

　　1、電(dian)池(chi)實(shi)(shi)際(ji)容(rong)(rong)量(liang)及其與標稱容(rong)(rong)量(liang)之差。評(ping)測實(shi)(shi)際(ji)容(rong)(rong)量(liang)以0.2C放電(dian)為準(zhun)，在規(gui)定循環次(ci)數內(nei)，以每次(ci)記錄電(dian)量(liang)的(de)加權平均值(zhi)為實(shi)(shi)際(ji)容(rong)(rong)量(liang)，實(shi)(shi)際(ji)容(rong)(rong)量(liang)與標稱容(rong)(rong)量(liang)越接近，電(dian)池(chi)越“真”。

　　2、評測(ce)電(dian)池(chi)壽命(ming)。在電(dian)池(chi)實(shi)際容量(liang)(liang)(liang)評測(ce)的基(ji)礎上，將每款電(dian)池(chi)實(shi)際容量(liang)(liang)(liang)與標稱容量(liang)(liang)(liang)逐次對比，得(de)出各自的容量(liang)(liang)(liang)衰減率，從而評測(ce)電(dian)池(chi)壽命(ming)。

　　3、評測自放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)：以一(yi)(yi)定時(shi)間為一(yi)(yi)個充電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)評測周(zhou)期，一(yi)(yi)直放(fang)(fang)到充電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)的(de)截止電(dian)(dian)(dian)(dian)(dian)(dian)壓，看(kan)(kan)看(kan)(kan)其(qi)間的(de)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)容量變化。這(zhe)個過程(cheng)要注意：每(mei)一(yi)(yi)個品牌(pai)要選取若(ruo)干個電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)，因為這(zhe)里有電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)均衡性問題。即使(shi)不(bu)同品牌(pai)的(de)充電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)總體自放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)在(zai)充電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)評測結果中接近，一(yi)(yi)致性差的(de)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)也可(ke)以被認為長(chang)期保持電(dian)(dian)(dian)(dian)(dian)(dian)量能力差。

　　充電電池評測(ce)是一項嚴肅而(er)科學的工(gong)作，工(gong)作人員不但要記錄好充電電池評測(ce)的數(shu)(shu)據，而(er)且要加(jia)強充電電池評測(ce)的數(shu)(shu)據處理和數(shu)(shu)字分析(xi)能力，從(cong)而(er)更好地為電池用戶提供精準服務。

                                                                                                                                                                                                   本文(wen)摘自(zi)于(yu)中國鋰電網