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充電(dian)(dian)(dian)(dian)(dian)是(shi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)重(zhong)復使用的重(zhong)要(yao)步(bu)驟，鋰離(li)子(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的充電(dian)(dian)(dian)(dian)(dian)過程分(fen)為兩個階(jie)段(duan)：恒(heng)流快充階(jie)段(duan)和(he)恒(heng)壓(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)流遞減階(jie)段(duan)。恒(heng)流快充階(jie)段(duan)，電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)逐(zhu)步(bu)升高(gao)到電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的標準(zhun)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，隨(sui)后在控制(zhi)芯片下轉入恒(heng)壓(ya)(ya)(ya)階(jie)段(duan)，電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)不(bu)再(zai)升高(gao)以確保不(bu)會過充，電(dian)(dian)(dian)(dian)(dian)流則隨(sui)著電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)(dian)(dian)量(liang)的上(shang)升逐(zhu)步(bu)減弱(ruo)到設定的值，而最終完成充電(dian)(dian)(dian)(dian)(dian)。電(dian)(dian)(dian)(dian)(dian)量(liang)統(tong)計芯片通過記錄(lu)放電(dian)(dian)(dian)(dian)(dian)曲(qu)線可以抽(chou)樣計算出電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的電(dian)(dian)(dian)(dian)(dian)量(liang)。鋰離(li)子(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)在多次使用后，放電(dian)(dian)(dian)(dian)(dian)曲(qu)線會發生改變(bian)，鋰離(li)子(zi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)雖然不(bu)存(cun)在記憶(yi)效(xiao)應(ying)，但(dan)是(shi)充、放電(dian)(dian)(dian)(dian)(dian)不(bu)當會嚴重(zhong)影響電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)性能。

鋰(li)離(li)子電池過度(du)(du)充放電會(hui)對正負(fu)極(ji)造(zao)成永久性損壞。過度(du)(du)放電導致負(fu)極(ji)碳片層結(jie)構出現塌陷，而塌陷會(hui)造(zao)成充電過程中鋰(li)離(li)子無法插(cha)入(ru)；過度(du)(du)充電使過多的鋰(li)離(li)子嵌入(ru)負(fu)極(ji)碳結(jie)構，而造(zao)成其中部分鋰(li)離(li)子再也無法釋放出來。

充(chong)(chong)(chong)電(dian)(dian)(dian)量等于(yu)充(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流乘(cheng)以充(chong)(chong)(chong)電(dian)(dian)(dian)時間，在充(chong)(chong)(chong)電(dian)(dian)(dian)控制電(dian)(dian)(dian)壓一定(ding)的(de)(de)情況下，充(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流越(yue)大（充(chong)(chong)(chong)電(dian)(dian)(dian)速度(du)越(yue)快(kuai)），充(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)量越(yue)小。電(dian)(dian)(dian)池充(chong)(chong)(chong)電(dian)(dian)(dian)速度(du)過(guo)快(kuai)和終止電(dian)(dian)(dian)壓控制點不當，同樣會造成電(dian)(dian)(dian)池容量不足(zu)，實(shi)際(ji)是電(dian)(dian)(dian)池的(de)(de)部分電(dian)(dian)(dian)極活性物質沒有得到充(chong)(chong)(chong)分反應就停止充(chong)(chong)(chong)電(dian)(dian)(dian)，這種充(chong)(chong)(chong)電(dian)(dian)(dian)不足(zu)的(de)(de)現象隨著循環(huan)次(ci)數的(de)(de)增加而加劇。

第一次充放電，如果時間能較長(一般3--4小時足夠)，那么可以使電極盡可能多的達到最高氧化態（充足電），放電（或使用）時則強制放到規定的電壓、或直至自動關機，如此能激活電池使用容量。但在鋰離子電(dian)池的平(ping)常(chang)使(shi)用中，不(bu)需要如此(ci)操(cao)作(zuo)，可(ke)(ke)以隨(sui)時(shi)根據需要充(chong)(chong)電(dian)，充(chong)(chong)電(dian)時(shi)既不(bu)必要一(yi)定充(chong)(chong)滿電(dian)為止，也不(bu)需要先放電(dian)。象首次充(chong)(chong)放電(dian)那樣的操(cao)作(zuo)，只需要每隔3--4個月進行(xing)連續的1--2次即可(ke)(ke)。

江門市朗達鋰電(dian)池(chi)(chi)有(you)限公(gong)司是一家在華南(nan)地區獲得ISO9001認證的電(dian)池(chi)(chi)設計，開(kai)發和(he)制造(zao)的公(gong)司，專門生產磷(lin)酸鋰離子(zi)（LiFePO4）,鋰離子(zi)電(dian)池(chi)(chi)。無論您的開(kai)發預算和(he)時(shi)間表如何，朗達都(dou)可以提供電(dian)源解決方案，使您的設備具(ju)有(you)競爭(zheng)優(you)勢。期待與您的合作！

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