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，而比較評(ping)測(ce)(ce)則是(shi)對于兩種或者兩種以上品(pin)牌(pai)相同標(biao)稱容量(liang)的(de)電池(chi)就某一(yi)個(ge)性(xing)能參數進(jin)行的(de)比較。充電電池(chi)評(ping)測(ce)(ce)是(shi)描述電池(chi)客觀(guan)情(qing)況的(de)重要手段，一(yi)般情(qing)況下，進(jin)行充電電池(chi)評(ping)測(ce)(ce)需要專門的(de)檢(jian)測(ce)(ce)設備，故而在實驗(yan)室檢(jian)驗(yan)為好，這(zhe)樣可以縮(suo)小誤差(cha)。

　　無論(lun)是自我評測(ce)(ce)還是比較(jiao)評測(ce)(ce)，充(chong)(chong)電(dian)電(dian)池(chi)評測(ce)(ce)都要有兩個前(qian)提條件，一是工作(zuo)溫度(du)在常溫范圍內，二是充(chong)(chong)電(dian)電(dian)池(chi)必須(xu)是新(xin)電(dian)。

　　對于充電電池評測中的自我評測，電池生產廠家的(de)(de)著重(zhong)點(dian)往(wang)往(wang)并不完全相同：有的(de)(de)囊(nang)括所(suo)有性能參數(shu)，有的(de)(de)則僅測試與容量相關的(de)(de)參數(shu)，有的(de)(de)會在這個基礎(chu)上加上安全性能測試。

　　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)、循環次數、檢(jian)測柜(ju)型號(hao)等所有(you)充電(dian)電(dian)池評測的(de)環境必(bi)須(xu)都是一樣的(de)。

　　在比較評測(ce)中，主要測(ce)試(shi)三個參數：

　　1、電池實(shi)際容(rong)(rong)量(liang)(liang)及其(qi)與(yu)標(biao)稱(cheng)容(rong)(rong)量(liang)(liang)之差。評測實(shi)際容(rong)(rong)量(liang)(liang)以(yi)0.2C放電為(wei)(wei)準(zhun)，在規定(ding)循環(huan)次數(shu)內，以(yi)每次記錄電量(liang)(liang)的加權平均值為(wei)(wei)實(shi)際容(rong)(rong)量(liang)(liang)，實(shi)際容(rong)(rong)量(liang)(liang)與(yu)標(biao)稱(cheng)容(rong)(rong)量(liang)(liang)越接(jie)近，電池越“真”。

　　2、評測電(dian)池壽(shou)命。在電(dian)池實際容(rong)(rong)量評測的基礎上(shang)，將每款電(dian)池實際容(rong)(rong)量與標(biao)稱容(rong)(rong)量逐次對比，得出各自的容(rong)(rong)量衰減率，從(cong)而評測電(dian)池壽(shou)命。

　　3、評(ping)測自放電(dian)(dian)(dian)(dian)(dian)：以一定時間(jian)為(wei)(wei)一個(ge)(ge)充電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池評(ping)測周(zhou)期，一直(zhi)放到(dao)充電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池的截(jie)止電(dian)(dian)(dian)(dian)(dian)壓，看看其間(jian)的電(dian)(dian)(dian)(dian)(dian)池容量變(bian)化。這個(ge)(ge)過程要注意：每一個(ge)(ge)品牌要選取若干(gan)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)池，因為(wei)(wei)這里有(you)電(dian)(dian)(dian)(dian)(dian)池放電(dian)(dian)(dian)(dian)(dian)均衡性問(wen)題。即使(shi)不同品牌的充電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池總體自放電(dian)(dian)(dian)(dian)(dian)在充電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池評(ping)測結果中接近，一致(zhi)性差的電(dian)(dian)(dian)(dian)(dian)池也可以被(bei)認為(wei)(wei)長(chang)期保持電(dian)(dian)(dian)(dian)(dian)量能力(li)差。

　　充電(dian)(dian)(dian)電(dian)(dian)(dian)池評(ping)測(ce)是一項嚴肅而(er)科學(xue)的工作(zuo)，工作(zuo)人員不但(dan)要(yao)記錄好充電(dian)(dian)(dian)電(dian)(dian)(dian)池評(ping)測(ce)的數據，而(er)且(qie)要(yao)加強充電(dian)(dian)(dian)電(dian)(dian)(dian)池評(ping)測(ce)的數據處理(li)和數字分析能力(li)，從而(er)更好地為電(dian)(dian)(dian)池用戶提(ti)供精(jing)準服務。

                                                                                                                                                                                                   本文摘自于中國鋰電網