鋰離子電池好(hao)不(bu)好(hao)主要(yao)看其主要(yao)的性能(neng)指標怎么(me)樣，比如說電(dian)池(chi)容量放電(dian)效率(lv)，電(dian)池(chi)放電(dian)平臺高低、電(dian)池(chi)內阻大小等，具(ju)體要(yao)求(qiu)怎么(me)樣，請跟讓鋰離(li)子電(dian)池(chi)廠家友(you)創偉業(ye)一起(qi)來(lai)往下了解。

1、鋰(li)離子電池的(de)容量

電(dian)(dian)(dian)池(chi)的(de)容(rong)量(liang)(liang)有額定容(rong)量(liang)(liang)和實際容(rong)量(liang)(liang)之分。電(dian)(dian)(dian)池(chi)的(de)額定容(rong)量(liang)(liang)是指(zhi)電(dian)(dian)(dian)池(chi)在環境(jing)溫(wen)度為20℃±5℃條件下(xia)，以5C倍(bei)率(lv)放電(dian)(dian)(dian)至終止電(dian)(dian)(dian)壓時所應(ying)提供的(de)電(dian)(dian)(dian)量(liang)(liang)，用5C表示。電(dian)(dian)(dian)池(chi)的(de)實際容(rong)量(liang)(liang)是指(zhi)電(dian)(dian)(dian)池(chi)在一定的(de)放電(dian)(dian)(dian)條件下(xia)所放出的(de)實際電(dian)(dian)(dian)量(liang)(liang)，主要(yao)受放電(dian)(dian)(dian)倍(bei)率(lv)和溫(wen)度的(de)影響（故(gu)嚴格(ge)來講，電(dian)(dian)(dian)池(chi)容(rong)量(liang)(liang)應(ying)指(zhi)明充放電(dian)(dian)(dian)條件）。容(rong)量(liang)(liang)單位：mAh、Ah（1Ah=1000mAh）。

2、鋰離子電池電池內(nei)阻

電(dian)(dian)池(chi)(chi)(chi)內(nei)阻(zu)(zu)(zu)是指(zhi)電(dian)(dian)池(chi)(chi)(chi)在工作時(shi)，電(dian)(dian)流(liu)流(liu)過電(dian)(dian)池(chi)(chi)(chi)內(nei)部(bu)所受到的(de)阻(zu)(zu)(zu)力。有(you)歐姆內(nei)阻(zu)(zu)(zu)與極(ji)化(hua)內(nei)阻(zu)(zu)(zu)兩(liang)部(bu)分組成。電(dian)(dian)池(chi)(chi)(chi)內(nei)阻(zu)(zu)(zu)值(zhi)大(da)，會導(dao)致電(dian)(dian)池(chi)(chi)(chi)放電(dian)(dian)工作電(dian)(dian)壓降低(di)，放電(dian)(dian)時(shi)間縮短(duan)。內(nei)阻(zu)(zu)(zu)大(da)小主要受電(dian)(dian)池(chi)(chi)(chi)的(de)材料、制造工藝、電(dian)(dian)池(chi)(chi)(chi)結構(gou)等因(yin)素的(de)影響。電(dian)(dian)池(chi)(chi)(chi)內(nei)阻(zu)(zu)(zu)是衡量電(dian)(dian)池(chi)(chi)(chi)性能的(de)一個重要參數。

3、鋰(li)離子電(dian)池(chi)的(de)電(dian)壓

開(kai)路(lu)(lu)(lu)電(dian)壓(ya)是指電(dian)池在非工作狀態(tai)下(xia)即電(dian)路(lu)(lu)(lu)中無電(dian)流(liu)流(liu)過(guo)時，電(dian)池正負(fu)極(ji)之間(jian)的(de)電(dian)勢(shi)差(cha)。一般情況(kuang)下(xia)，鋰(li)離子電(dian)池充滿(man)電(dian)后開(kai)路(lu)(lu)(lu)電(dian)壓(ya)為4.2V左(zuo)(zuo)右，放電(dian)后開(kai)路(lu)(lu)(lu)電(dian)壓(ya)為3.0V左(zuo)(zuo)右。通過(guo)對電(dian)池的(de)開(kai)路(lu)(lu)(lu)電(dian)壓(ya)的(de)檢測，可以判斷電(dian)池的(de)荷電(dian)狀態(tai)。

工(gong)作電(dian)(dian)(dian)壓(ya)(ya)又稱端電(dian)(dian)(dian)壓(ya)(ya)，是指電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)在工(gong)作狀態下即電(dian)(dian)(dian)路(lu)中有電(dian)(dian)(dian)流流過時電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)正(zheng)負(fu)極(ji)之間(jian)的電(dian)(dian)(dian)勢差。在電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)放(fang)電(dian)(dian)(dian)工(gong)作狀態下，當電(dian)(dian)(dian)流流過電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)內部(bu)時，不需克服電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的內阻(zu)所(suo)造成阻(zu)力，故工(gong)作電(dian)(dian)(dian)壓(ya)(ya)總是低(di)于開路(lu)電(dian)(dian)(dian)壓(ya)(ya)，充(chong)電(dian)(dian)(dian)時則與之相(xiang)反。鋰(li)離子電(dian)(dian)(dian)池(chi)(chi)(chi)(chi)的放(fang)電(dian)(dian)(dian)工(gong)作電(dian)(dian)(dian)壓(ya)(ya)在3.6V左右。

4、鋰離子電池的放(fang)電平臺時間

放(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)平臺(tai)(tai)時(shi)(shi)間是指在電(dian)(dian)(dian)(dian)(dian)池(chi)滿(man)電(dian)(dian)(dian)(dian)(dian)情(qing)況下放(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)至(zhi)某(mou)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)放(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)時(shi)(shi)間。例對某(mou)三元(yuan)電(dian)(dian)(dian)(dian)(dian)池(chi)測(ce)量(liang)其3.6V的(de)(de)放(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)平臺(tai)(tai)時(shi)(shi)間，以恒壓(ya)(ya)充(chong)(chong)(chong)到電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)為(wei)4.2V，并且充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流小于0.02C時(shi)(shi)停止充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)即充(chong)(chong)(chong)滿(man)電(dian)(dian)(dian)(dian)(dian)后(hou)，然后(hou)擱置10分鐘，在任何倍(bei)率的(de)(de)放(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流下放(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)至(zhi)3.6V時(shi)(shi)的(de)(de)放(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)時(shi)(shi)間即為(wei)該(gai)電(dian)(dian)(dian)(dian)(dian)流下的(de)(de)放(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)平臺(tai)(tai)時(shi)(shi)間。因(yin)某(mou)些(xie)使用鋰離子電(dian)(dian)(dian)(dian)(dian)池(chi)的(de)(de)用電(dian)(dian)(dian)(dian)(dian)器的(de)(de)工作電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)都有電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)要求，如果(guo)低于要求值，則會(hui)出(chu)現無法工作的(de)(de)情(qing)況。所(suo)以放(fang)(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)平臺(tai)(tai)是衡量(liang)電(dian)(dian)(dian)(dian)(dian)池(chi)性能好壞的(de)(de)重要標(biao)準之(zhi)一(yi)。

5、鋰(li)離子電(dian)池的充放電(dian)倍率

充放電(dian)倍率是(shi)指電(dian)池(chi)在規定(ding)(ding)的(de)(de)時間(jian)內(nei)放出其(qi)額(e)定(ding)(ding)容(rong)量(liang)時所需要的(de)(de)電(dian)流值，1C在數值上等于電(dian)池(chi)額(e)定(ding)(ding)容(rong)量(liang)，通常(chang)以(yi)字(zi)母C表示。如電(dian)池(chi)的(de)(de)標稱額(e)定(ding)(ding)容(rong)量(liang)為10Ah，則(ze)10A為1C（1倍率），5A則(ze)為0.5C，100A為10C，以(yi)此類推。

6、鋰(li)離子電(dian)池的自放電(dian)率

自放電(dian)率又稱荷(he)電(dian)保(bao)持能(neng)力，是(shi)指電(dian)池(chi)在開路狀態下，電(dian)池(chi)所(suo)儲存(cun)(cun)的(de)電(dian)量(liang)在一(yi)定條件下的(de)保(bao)持能(neng)力。主要受電(dian)池(chi)的(de)制(zhi)造(zao)工藝、材(cai)料、儲存(cun)(cun)條件等(deng)因素(su)的(de)影響(xiang)。是(shi)衡(heng)量(liang)電(dian)池(chi)性能(neng)的(de)重要參數。

充(chong)電效(xiao)率(lv)(lv)是(shi)指電池(chi)在充(chong)電過程(cheng)中(zhong)所消耗(hao)的(de)電能轉化成電池(chi)所能儲存的(de)化學能程(cheng)度的(de)量度。主(zhu)要受電池(chi)工藝，配方及電池(chi)的(de)工作環境(jing)溫(wen)度影響，一般環境(jing)溫(wen)度越高，則充(chong)電效(xiao)率(lv)(lv)要低(di)。

放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)效率(lv)是指(zhi)在一(yi)定的(de)放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)條件下放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)至終點(dian)電(dian)(dian)(dian)(dian)(dian)壓(ya)所放(fang)(fang)出的(de)實際(ji)電(dian)(dian)(dian)(dian)(dian)量與(yu)電(dian)(dian)(dian)(dian)(dian)池的(de)額(e)定容量之(zhi)比，主要受放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)倍率(lv)，環境溫度，內(nei)阻等因素(su)影響，一(yi)般情況(kuang)下，放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)倍率(lv)越(yue)高(gao)，則放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)效率(lv)越(yue)低。溫度越(yue)低，放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)效率(lv)越(yue)低。

7、鋰離子(zi)電(dian)池的循(xun)環壽命

電(dian)池循環壽命是指電(dian)池容量下(xia)降(jiang)到某(mou)一規定(ding)的(de)值時，電(dian)池在(zai)某(mou)一充(chong)放電(dian)制度(du)下(xia)所經歷的(de)充(chong)放電(dian)次(ci)(ci)數。鋰離子電(dian)池GB規定(ding)，1C條件下(xia)電(dian)池循環500次(ci)(ci)后容量保持率在(zai)60%以上。