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磷酸鐵鋰電池知識百科 lstldc-bk

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磷酸鐵鋰電池真實壽命是多少?

目前市場上的磷酸鐵鋰電池都標循環壽(shou)(shou)命(ming)(ming)2000次(ci)左右,這個是(shi)指平(ping)穩正(zheng)常(chang)小電流充(chong)放電和常(chang)溫(wen)環境下(xia)應用的(de)理想數(shu)字,但是(shi)實際(ji)上在不(bu)(bu)同使用情況下(xia),磷酸鐵(tie)鋰電池真實壽(shou)(shou)命(ming)(ming)循環數(shu)是(shi)不(bu)(bu)一(yi)樣(yang)(yang)的(de)。這個主(zhu)要說(shuo)一(yi)下(xia)幾個不(bu)(bu)同用途情況下(xia)的(de)使用壽(shou)(shou)命(ming)(ming)怎么樣(yang)(yang)。

軟包高倍率磷酸鐵鋰電池

1、磷酸鐵鋰電(dian)池常溫環境(jing)下使(shi)用

(1)小電流充放電

這個(ge)情況(kuang)下的使(shi)用,基(ji)本都是(shi)用在(zai)(zai)3C類電子產品上(shang),在(zai)(zai)這一領域(yu)應用上(shang)磷(lin)酸鐵鋰電池正常使(shi)用的話(hua),如果是(shi)電池品牌廠商實力比(bi)較強的,質(zhi)量好的,基(ji)本都是(shi)2000次(ci)以(yi)(yi)上(shang)的循環壽命(ming);小(xiao)型(xing)鋰電池廠商,質(zhi)量稍次(ci)一點的也有1000次(ci)以(yi)(yi)上(shang)的循環壽命(ming);

(2)高倍率穩定充放(fang)電使用

高倍率放電(dian)(dian)(dian)(dian)(dian)的(de)應(ying)用(yong),大多數(shu)(shu)是動(dong)力型鋰(li)電(dian)(dian)(dian)(dian)(dian)池,多數(shu)(shu)是應(ying)用(yong)在(zai)(zai)給電(dian)(dian)(dian)(dian)(dian)機提(ti)供動(dong)力的(de)應(ying)用(yong)上,如新能源汽車、電(dian)(dian)(dian)(dian)(dian)動(dong)車、漁船機電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)源等。由于磷(lin)酸鐵(tie)(tie)鋰(li)電(dian)(dian)(dian)(dian)(dian)池多數(shu)(shu)在(zai)(zai)高負荷狀(zhuang)態(tai)下運行,加快了(le)電(dian)(dian)(dian)(dian)(dian)池材料(liao)衰減時(shi)間,循環(huan)壽命(ming)是急劇下降的(de),質量差的(de)電(dian)(dian)(dian)(dian)(dian)芯(xin)(xin),可能也就(jiu)500次(ci)左右的(de)循環(huan);實力強的(de)磷(lin)酸鐵(tie)(tie)鋰(li)電(dian)(dian)(dian)(dian)(dian)池品牌廠家(jia),在(zai)(zai)設備技術和(he)材料(liao)應(ying)用(yong)上會比較好,電(dian)(dian)(dian)(dian)(dian)芯(xin)(xin)質量就(jiu)會好些,但循環(huan)壽命(ming)也就(jiu)在(zai)(zai)800次(ci)左右。

(3)高倍率(lv)不穩定充放電使用(yong)

想這種情況下使用(yong)(yong)的(de)(de)磷酸鐵鋰電(dian)(dian)(dian)池(chi),壽命會更短,300次左右差不(bu)(bu)多(duo)就報(bao)廢了。電(dian)(dian)(dian)池(chi)使用(yong)(yong)的(de)(de)不(bu)(bu)穩定(ding)放電(dian)(dian)(dian),時高(gao)時低,對(dui)電(dian)(dian)(dian)池(chi)衰減促(cu)進作用(yong)(yong)會更大的(de)(de)。

2、磷酸鐵鋰(li)電(dian)池高溫(wen)環境下使用

磷(lin)酸鐵鋰電池高溫性能目(mu)前不(bu)是(shi)很成熟,運行溫度-20℃到125℃,這(zhe)個溫度范(fan)圍為理論值,實際應(ying)用溫度范(fan)圍要小些。

(1)小電流充放電

在這(zhe)一(yi)領域(yu)應(ying)用上(shang)磷(lin)酸鐵鋰電池(chi)正常使用的(de)話,如果(guo)是(shi)電池(chi)品牌(pai)廠(chang)商(shang)實力(li)比較強的(de),質(zhi)量好的(de),基本都是(shi)1000次(ci)以(yi)上(shang)的(de)循環壽命;小型鋰電池(chi)廠(chang)商(shang),質(zhi)量稍(shao)次(ci)一(yi)點的(de)也(ye)有500次(ci)以(yi)上(shang)的(de)循環壽命;因為(wei)高溫下使用,對(dui)電池(chi)損害是(shi)比較大的(de)。

(2)高倍率穩定充放電使用

高(gao)溫環(huan)(huan)境(jing)下電(dian)(dian)(dian)(dian)池(chi)(chi)高(gao)倍率放電(dian)(dian)(dian)(dian)的(de)(de)應用(yong)(yong)(yong),大多(duo)(duo)(duo)數(shu)是動(dong)力(li)(li)型鋰電(dian)(dian)(dian)(dian)池(chi)(chi),多(duo)(duo)(duo)數(shu)是應用(yong)(yong)(yong)在(zai)(zai)給(gei)電(dian)(dian)(dian)(dian)機提供動(dong)力(li)(li)的(de)(de)應用(yong)(yong)(yong)上,國內(nei)實力(li)(li)強(qiang)的(de)(de)鋰電(dian)(dian)(dian)(dian)池(chi)(chi)廠(chang)(chang)家生產(chan)的(de)(de)電(dian)(dian)(dian)(dian)芯多(duo)(duo)(duo)應用(yong)(yong)(yong)在(zai)(zai)新能源(yuan)汽車(che)、電(dian)(dian)(dian)(dian)動(dong)車(che)、漁船機電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)源(yuan)等(deng),實力(li)(li)差的(de)(de)電(dian)(dian)(dian)(dian)池(chi)(chi)廠(chang)(chang)商,多(duo)(duo)(duo)應用(yong)(yong)(yong)于(yu)一些比(bi)較(jiao)小(xiao)眾的(de)(de)領域,如醫療(liao)、鍋爐設備啟動(dong)等(deng)。由于(yu)磷酸鐵鋰電(dian)(dian)(dian)(dian)池(chi)(chi)多(duo)(duo)(duo)數(shu)在(zai)(zai)高(gao)負荷(he)狀態下運(yun)行(xing),加快(kuai)了電(dian)(dian)(dian)(dian)池(chi)(chi)材料衰減時(shi)間(jian),循環(huan)(huan)壽(shou)命是急劇下降的(de)(de),質(zhi)量差的(de)(de)電(dian)(dian)(dian)(dian)芯,可能也就(jiu)(jiu)300次左右(you)的(de)(de)循環(huan)(huan);實力(li)(li)強(qiang)的(de)(de)電(dian)(dian)(dian)(dian)池(chi)(chi)品牌(pai)廠(chang)(chang)家,在(zai)(zai)設備技(ji)術和(he)材料應用(yong)(yong)(yong)上會比(bi)較(jiao)好,電(dian)(dian)(dian)(dian)芯質(zhi)量就(jiu)(jiu)會好些,但循環(huan)(huan)壽(shou)命也就(jiu)(jiu)在(zai)(zai)500次左右(you)。

(3)高倍率不穩定充放電使用(yong)

高溫(wen)加放電(dian)(dian)倍率(lv)不穩(wen)定運行,對(dui)電(dian)(dian)池損害更大,循環使用(yong)壽命比較(jiao)低(di),對(dui)幾家電(dian)(dian)池廠(chang)家電(dian)(dian)芯(xin)做測試發現,250到300次這樣,電(dian)(dian)池基(ji)本使用(yong)不了了。

3、磷酸鐵鋰(li)電池低溫(wen)環境下使(shi)用

低溫(wen)(wen)環(huan)境下(xia)對磷酸(suan)鐵(tie)鋰(li)電(dian)池性能影響要比高還要大,就目前市場(chang)情(qing)況(kuang)來看,磷酸(suan)鐵(tie)鋰(li)電(dian)池在(zai)(zai)低于-20℃以下(xia)到-40℃工(gong)作,壽命(ming)明(ming)顯下(xia)降,放(fang)電(dian)電(dian)流范(fan)圍0.2C到1C,放(fang)電(dian)容(rong)量50%到60%,溫(wen)(wen)度(du)(du)也低,放(fang)電(dian)能力越差。因此現在(zai)(zai)市場(chang)上,成熟應用的低溫(wen)(wen)磷酸(suan)鐵(tie)鋰(li)電(dian)池不多(duo),溫(wen)(wen)度(du)(du)范(fan)圍-20℃到55℃,循(xun)環(huan)使用壽命(ming)300次(ci)左右。

以上數據僅做參考,如有(you)不足,敬請見(jian)諒(liang)!

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