鎳氫電池和鋰電池壽命是多少?
鎳氫電(dian)池(chi)(chi)和鋰電(dian)池(chi)(chi)壽(shou)命(ming)是(shi)多少相信(xin)很多朋(peng)友并(bing)不知道吧,在(zai)電(dian)池(chi)(chi)行(xing)業(ye)(ye)的(de)專業(ye)(ye)人來(lai)(lai)(lai)說(shuo)(shuo)電(dian)池(chi)(chi)的(de)壽(shou)命(ming)是(shi)以(yi)(yi)電(dian)池(chi)(chi)使用(yong)循環(huan)次數(shu)來(lai)(lai)(lai)衡量的(de),而對于一般(ban)消費來(lai)(lai)(lai)說(shuo)(shuo),他們認為是(shi)以(yi)(yi)時間長(chang)短來(lai)(lai)(lai)定(ding)義電(dian)池(chi)(chi)使用(yong)壽(shou)命(ming)的(de)。下面就從(cong)它們各自的(de)使用(yong)特(te)性(xing)對鎳氫電(dian)池(chi)(chi)和鋰電(dian)池(chi)(chi)壽(shou)命(ming)是(shi)多少做(zuo)分別(bie)介紹(shao)吧?
一、鎳氫電池(chi)的使用壽命多(duo)久
鎳氫電池壽(shou)命是從生產制造成的那(nei)一刻就開始(shi)算了的,即(ji)使不(bu)(bu)使用(yong),每天也會按(an)0.2%-0.3%的比(bi)例放電(dian)(dian),而且(qie)存儲(chu)一段時間后,即(ji)使不(bu)(bu)進行循環使用(yong),其(qi)小部分(fen)容量也會永久喪失,它的壽(shou)命同樣會衰減。因此,鎳氫(qing)電(dian)(dian)池(chi)的保存不(bu)(bu)應超過1年。那(nei)么鎳氫(qing)電(dian)(dian)池(chi)的使用(yong)壽(shou)命到底有多長呢

在目前常規見到的電(dian)(dian)池(chi),不(bu)管是(shi)(shi)(shi)鋰電(dian)(dian)池(chi)、鉛酸(suan)電(dian)(dian)池(chi)還是(shi)(shi)(shi)鎳氫電(dian)(dian)池(chi)等可充(chong)電(dian)(dian)電(dian)(dian)池(chi),電(dian)(dian)池(chi)的壽(shou)命長短都(dou)不(bu)是(shi)(shi)(shi)以時間為單位去衡量的,而是(shi)(shi)(shi)按照在一定使(shi)用(yong)(yong)工況(kuang)條件(jian)以電(dian)(dian)池(chi)充(chong)放電(dian)(dian)循環次(ci)數來說的,也就是(shi)(shi)(shi)說假(jia)如同樣的使(shi)用(yong)(yong)條件(jian)下,都(dou)是(shi)(shi)(shi)100次(ci)循環使(shi)用(yong)(yong)壽(shou)命,使(shi)用(yong)(yong)頻繁的電(dian)(dian)池(chi),從時間單位上來說,壽(shou)命肯(ken)定是(shi)(shi)(shi)要短的。
從正常使用(yong)情(qing)況上(shang)來說(shuo),鎳氫電池(chi)壽命(ming)理論上(shang)是可(ke)以選(xuan)好(hao)使用(yong)500次,當然如果是小(xiao)電流輕負荷使用(yong),可(ke)以達到(dao)800次左右的循(xun)環使用(yong)壽命(ming)。其實鎳氫電池(chi)壽命(ming)主要是受以下幾個因素(su)影響:
1、使用環境工況對鎳氫電池壽(shou)命的影(ying)響
鎳氫電(dian)池(chi)使(shi)用(yong)的(de)(de)(de)實際環境對(dui)使(shi)用(yong)壽(shou)命(ming)是有一定的(de)(de)(de)影(ying)響的(de)(de)(de),比如(ru)如(ru)果是在(zai)較低(di)溫(wen)度(du)環境下(xia)使(shi)用(yong),鎳氫電(dian)池(chi)會(hui)直接使(shi)用(yong)不了(le),也就(jiu)是不放電(dian)了(le),即(ji)使(shi)重新放回常(chang)溫(wen)下(xia)使(shi)用(yong),鎳氫電(dian)池(chi)使(shi)用(yong)壽(shou)命(ming)也會(hui)比沒有在(zai)低(di)溫(wen)環境下(xia)工作(zuo)過的(de)(de)(de)壽(shou)命(ming)要(yao)短很多(duo)。目前鎳氫電(dian)池(chi)在(zai)低(di)溫(wen)工作(zuo)的(de)(de)(de)不多(duo),如(ru)格瑞普(pu)電(dian)池(chi)生(sheng)產制造的(de)(de)(de)鎳氫電(dian)池(chi),也只(zhi)是在(zai)-20℃的(de)(de)(de)環境下(xia)工作(zuo),再低(di)的(de)(de)(de)話(hua),基本就(jiu)無法工作(zuo)了(le),而在(zai)高(gao)溫(wen)下(xia),質量較好的(de)(de)(de)耐高(gao)溫(wen)溫(wen)度(du)也在(zai)80℃以下(xia),當然在(zai)超出常(chang)規溫(wen)度(du)環境下(xia)使(shi)用(yong),鎳氫電(dian)池(chi)壽(shou)命(ming)肯(ken)定是會(hui)變短的(de)(de)(de)。
2、放電(dian)電(dian)流大小對鎳氫電(dian)池壽命(ming)的(de)影響
鎳氫(qing)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)有常規(gui)(gui)放(fang)電(dian)(dian)(dian)(dian)(dian)型和(he)高(gao)倍率(lv)放(fang)電(dian)(dian)(dian)(dian)(dian)型量(liang)大類,也就是(shi)說常規(gui)(gui)鎳氫(qing)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)只能(neng)按照(zhao)規(gui)(gui)定(ding)條(tiao)件下常規(gui)(gui)放(fang)電(dian)(dian)(dian)(dian)(dian),如果進行大電(dian)(dian)(dian)(dian)(dian)流(liu)放(fang)電(dian)(dian)(dian)(dian)(dian)的話,很容易(yi)對(dui)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)造(zao)成傷害(hai),壽(shou)命(ming)自然(ran)變短;高(gao)倍率(lv)鎳氫(qing)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)是(shi)大電(dian)(dian)(dian)(dian)(dian)流(liu)放(fang)電(dian)(dian)(dian)(dian)(dian)專用(yong)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi),因此(ci)可以實現規(gui)(gui)定(ding)內的倍率(lv)型放(fang)電(dian)(dian)(dian)(dian)(dian),當然(ran)也可以常規(gui)(gui)放(fang)電(dian)(dian)(dian)(dian)(dian)。一般來(lai)說高(gao)倍率(lv)放(fang)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)要比常規(gui)(gui)放(fang)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)壽(shou)命(ming)要短,主要是(shi)高(gao)倍率(lv)放(fang)電(dian)(dian)(dian)(dian)(dian)對(dui)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)材料傷害(hai)比較大。
3、過(guo)(guo)放過(guo)(guo)充對鎳氫電池(chi)壽命的影響
鎳氫(qing)電池(chi)是(shi)有一定的(de)記憶效應的(de),同時在耐過(guo)(guo)充和(he)耐過(guo)(guo)放(fang)方面(mian)也(ye)不是(shi)很好,所(suo)以經常對鎳氫(qing)電池(chi)進行過(guo)(guo)放(fang)或過(guo)(guo)充的(de)話(hua),記憶效應會加速變得嚴重,嚴重影響鎳氫(qing)電池(chi)壽(shou)命的(de)長短。
4、保存(cun)不當對(dui)鎳氫(qing)電池壽(shou)命的影響(xiang)
在(zai)鎳(nie)氫電(dian)(dian)池不使用(yong)的情況下(xia),沒有按(an)照使用(yong)或保存規范操作(zuo),如(ru)電(dian)(dian)池隨(sui)意安放或受到(dao)碰撞(zhuang)變形等,這(zhe)些都會對鎳(nie)氫電(dian)(dian)池壽命長短造成影響。
當(dang)然鎳氫電池(chi)壽命受(shou)到其他方(fang)面的(de)影響還有很多,這里就不一(yi)(yi)一(yi)(yi)列舉了,只要按照使用(yong)要求去(qu)操作,鎳氫電池(chi)使用(yong)壽命一(yi)(yi)般會與(yu)理論壽命相接近的(de)。
二、鋰電池使(shi)用壽命是多(duo)久
鋰電池壽(shou)命(ming)會因(yin)為(wei)種(zhong)類(lei)的不同(tong)會有所差別,理論上說鋰電(dian)池(chi)平均壽(shou)命(ming)為(wei)500次以(yi)上,我們(men)按3天充電(dian)一次,理論鋰電(dian)池(chi)壽(shou)命(ming)兩到三年這樣;不同(tong)種(zhong)類(lei)配方的鋰電(dian)池(chi)壽(shou)命(ming)分別如下:

1、軟包鋰電池壽命
(1)軟包(bao)聚合物(wu)鋰電池理論使(shi)用(yong)壽命500次循(xun)環(huan)以上,使(shi)用(yong)于(yu)3C產品,壽命為3到5年;
(2)軟包磷酸鐵鋰電(dian)池(chi)理論使用壽(shou)命(ming)1500次循環左右(you),小電(dian)流充放電(dian),電(dian)池(chi)壽(shou)命(ming)10年(nian)以上,大電(dian)流放電(dian),壽(shou)命(ming)5年(nian)左右(you);
2、鋼殼鋰電池壽命
(1)鋼殼鋰離子電池理論使(shi)用(yong)壽命300到500次(ci)循環,小電流放電,2到3年;
(2)鋼(gang)殼磷酸(suan)鐵鋰電(dian)(dian)池理(li)論使用壽命1000次循環(huan)左右(you)(you),小電(dian)(dian)流(liu)放電(dian)(dian),3年(nian)左右(you)(you);
實(shi)際上用(yong)(yong)(yong)戶使(shi)用(yong)(yong)(yong)鋰(li)電(dian)(dian)池(chi)的(de)方式是千變(bian)萬化的(de),因為(wei)使(shi)用(yong)(yong)(yong)條(tiao)件的(de)不(bu)同(tong),鋰(li)電(dian)(dian)池(chi)最終的(de)實(shi)際使(shi)用(yong)(yong)(yong)壽命就會不(bu)同(tong)。事實(shi)上鋰(li)電(dian)(dian)池(chi)的(de)循環使(shi)用(yong)(yong)(yong)次數,除了用(yong)(yong)(yong)戶使(shi)用(yong)(yong)(yong)方式不(bu)同(tong)受影響之外,還與生(sheng)(sheng)產(chan)鋰(li)電(dian)(dian)池(chi)廠家的(de)生(sheng)(sheng)產(chan)技術(shu)水平和材料配(pei)方有關的(de)。
實際上,不(bu)同的循(xun)(xun)(xun)環(huan)制度得到(dao)的循(xun)(xun)(xun)環(huan)次數(shu)是截(jie)然(ran)不(bu)同的,比(bi)如以上其(qi)它的條件不(bu)變,僅(jin)僅(jin)把4.2V的恒壓(ya)電壓(ya)改為4.1V的恒壓(ya)電壓(ya)對同一個型號(hao)的電池(chi)進行(xing)循(xun)(xun)(xun)環(huan)壽(shou)命(ming)(ming)測試(shi),這(zhe)樣這(zhe)個電池(chi)就已(yi)經不(bu)是深充(chong)方式了,最后測試(shi)得到(dao)循(xun)(xun)(xun)環(huan)壽(shou)命(ming)(ming)次數(shu)可(ke)以提高近60%.那么如果把截(jie)止電壓(ya)提高到(dao)3.9V進行(xing)測試(shi),其(qi)循(xun)(xun)(xun)環(huan)次數(shu)應該可(ke)以增(zeng)加(jia)數(shu)倍。
拋(pao)開規則談論循環(huan)次數(shu)是沒有任何意義的,因(yin)為循環(huan)次數(shu)是檢測(ce)電(dian)池壽(shou)命的手段,而不是目(mu)的!
誤區:許多人喜歡把手機鋰離子電池用到自動關機再(zai)充電。這個完全沒有必(bi)要。
實際上,用戶不可(ke)能按(an)照(zhao)國標(biao)測試模式(shi)對電(dian)池進(jin)行使(shi)用,沒有一個(ge)手機(ji)會在2.75V才(cai)關機(ji),而其放電(dian)模式(shi)也不是大電(dian)流(liu)(liu)恒流(liu)(liu)放電(dian),而是GSM的脈沖(chong)放電(dian)和平時的小電(dian)流(liu)(liu)放電(dian)混合(he)的方式(shi)。
有另外一種關于循環壽(shou)命(ming)的(de)(de)(de)衡量方法,就是(shi)(shi)時(shi)(shi)間。有專家提出一般(ban)民用(yong)的(de)(de)(de)鋰(li)離子電池的(de)(de)(de)壽(shou)命(ming)是(shi)(shi)2~3年,結合(he)實(shi)際的(de)(de)(de)情況,比如以(yi)60%的(de)(de)(de)容(rong)量為(wei)(wei)壽(shou)命(ming)的(de)(de)(de)終(zhong)止,加上鋰(li)離子電池的(de)(de)(de)時(shi)(shi)效(xiao)作用(yong),用(yong)時(shi)(shi)間來表述循環壽(shou)命(ming)為(wei)(wei)更為(wei)(wei)合(he)理。
經過上(shang)面分別(bie)對鎳(nie)氫(qing)電池(chi)使用壽命和鋰(li)電池(chi)使用壽命的(de)詳細(xi)解答,相信大家(jia)對鎳(nie)氫(qing)電池(chi)和鋰(li)電池(chi)壽命是(shi)(shi)多(duo)(duo)少應該(gai)有了大致的(de)了解,當(dang)(dang)然電池(chi)的(de)使用壽命受影響的(de)因素(su)是(shi)(shi)很復雜的(de),上(shang)面只(zhi)是(shi)(shi)列舉了主(zhu)要因素(su),其他次要因素(su)還(huan)有很多(duo)(duo),比如機械碰撞(zhuang)損害(hai)、存儲不當(dang)(dang)損害(hai)等等。
