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測(ce)自身部分(fen)性能，而比較評測(ce)則是對于兩種或(huo)者(zhe)兩種以上品牌相同標(biao)稱容量的(de)(de)電(dian)池(chi)(chi)就某(mou)一(yi)個性能參數進(jin)行(xing)的(de)(de)比較。充電(dian)電(dian)池(chi)(chi)評測(ce)是描述電(dian)池(chi)(chi)客觀情(qing)況的(de)(de)重要手段(duan)，一(yi)般情(qing)況下，進(jin)行(xing)充電(dian)電(dian)池(chi)(chi)評測(ce)需要專門的(de)(de)檢測(ce)設(she)備，故(gu)而在實驗室檢驗為好，這(zhe)樣可以縮小誤(wu)差(cha)。

　　無論是(shi)自我評測(ce)還是(shi)比較評測(ce)，充電(dian)(dian)電(dian)(dian)池評測(ce)都要有兩個(ge)前(qian)提條件，一是(shi)工作溫度在常溫范(fan)圍(wei)內，二(er)是(shi)充電(dian)(dian)電(dian)(dian)池必須(xu)是(shi)新(xin)電(dian)(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(wang)往(wang)并(bing)不完全相(xiang)同：有的囊(nang)括所有性能參(can)數，有的則僅測試(shi)與容(rong)量相(xiang)關的參(can)數，有的會在這個基(ji)礎上加上安全性能測試(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、靜置時(shi)間、循環(huan)次數、檢測柜型(xing)號等(deng)所有充電(dian)電(dian)池評測的環(huan)境必(bi)須都(dou)是一樣的。

　　在比較(jiao)評測(ce)中，主(zhu)要(yao)測(ce)試三個參數：

　　1、電(dian)池實際容(rong)(rong)(rong)量(liang)(liang)(liang)及其與標稱容(rong)(rong)(rong)量(liang)(liang)(liang)之差。評(ping)測(ce)實際容(rong)(rong)(rong)量(liang)(liang)(liang)以0.2C放電(dian)為準(zhun)，在規定循環(huan)次數內，以每次記(ji)錄(lu)電(dian)量(liang)(liang)(liang)的加權平均值為實際容(rong)(rong)(rong)量(liang)(liang)(liang)，實際容(rong)(rong)(rong)量(liang)(liang)(liang)與標稱容(rong)(rong)(rong)量(liang)(liang)(liang)越接(jie)近，電(dian)池越“真”。

　　2、評(ping)測(ce)(ce)電池(chi)壽命。在電池(chi)實際(ji)(ji)容(rong)量(liang)評(ping)測(ce)(ce)的基礎上，將每款電池(chi)實際(ji)(ji)容(rong)量(liang)與標稱容(rong)量(liang)逐(zhu)次(ci)對比，得出各(ge)自的容(rong)量(liang)衰減率，從而評(ping)測(ce)(ce)電池(chi)壽命。

　　3、評測(ce)自放電(dian)(dian)(dian)(dian)：以(yi)一(yi)定(ding)時間為(wei)一(yi)個(ge)充電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池評測(ce)周期(qi)，一(yi)直放到充電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池的截(jie)止電(dian)(dian)(dian)(dian)壓，看(kan)看(kan)其間的電(dian)(dian)(dian)(dian)池容量變(bian)化(hua)。這個(ge)過程要(yao)注意：每一(yi)個(ge)品牌要(yao)選(xuan)取(qu)若干個(ge)電(dian)(dian)(dian)(dian)池，因為(wei)這里有電(dian)(dian)(dian)(dian)池放電(dian)(dian)(dian)(dian)均(jun)衡性問題(ti)。即使不同品牌的充電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池總體(ti)自放電(dian)(dian)(dian)(dian)在充電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池評測(ce)結(jie)果(guo)中(zhong)接近，一(yi)致性差的電(dian)(dian)(dian)(dian)池也可以(yi)被認為(wei)長期(qi)保持(chi)電(dian)(dian)(dian)(dian)量能力差。

　　充(chong)電(dian)電(dian)池(chi)評(ping)測是(shi)一項嚴肅(su)而(er)(er)科學的工作，工作人員不但(dan)要記錄好充(chong)電(dian)電(dian)池(chi)評(ping)測的數據，而(er)(er)且要加(jia)強充(chong)電(dian)電(dian)池(chi)評(ping)測的數據處理和數字分析能力，從而(er)(er)更(geng)好地為電(dian)池(chi)用戶提供精準(zhun)服務。

                                                                                                                                                                                                   本文摘自于(yu)中(zhong)國鋰電網(wang)