色污黄网站在线观看

充電

充(chong)電(dian)(dian)(dian)(dian)是電(dian)(dian)(dian)(dian)池(chi)重復使(shi)用的(de)重要步(bu)(bu)驟，鋰(li)離(li)子(zi)(zi)電(dian)(dian)(dian)(dian)池(chi)的(de)充(chong)電(dian)(dian)(dian)(dian)過(guo)程分為兩(liang)個階段：恒(heng)(heng)(heng)流快(kuai)(kuai)充(chong)階段和恒(heng)(heng)(heng)壓(ya)電(dian)(dian)(dian)(dian)流遞減階段。恒(heng)(heng)(heng)流快(kuai)(kuai)充(chong)階段，電(dian)(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)(dian)壓(ya)逐步(bu)(bu)升(sheng)高到(dao)電(dian)(dian)(dian)(dian)池(chi)的(de)標(biao)準電(dian)(dian)(dian)(dian)壓(ya)，隨后在(zai)控制芯片下轉入恒(heng)(heng)(heng)壓(ya)階段，電(dian)(dian)(dian)(dian)壓(ya)不(bu)(bu)再升(sheng)高以(yi)確保(bao)不(bu)(bu)會(hui)過(guo)充(chong)，電(dian)(dian)(dian)(dian)流則隨著(zhu)電(dian)(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)(dian)量(liang)(liang)的(de)上升(sheng)逐步(bu)(bu)減弱到(dao)設定(ding)的(de)值(zhi)，而最終完成充(chong)電(dian)(dian)(dian)(dian)。電(dian)(dian)(dian)(dian)量(liang)(liang)統計芯片通過(guo)記錄放(fang)電(dian)(dian)(dian)(dian)曲線可(ke)以(yi)抽(chou)樣計算(suan)出電(dian)(dian)(dian)(dian)池(chi)的(de)電(dian)(dian)(dian)(dian)量(liang)(liang)。鋰(li)離(li)子(zi)(zi)電(dian)(dian)(dian)(dian)池(chi)在(zai)多次使(shi)用后，放(fang)電(dian)(dian)(dian)(dian)曲線會(hui)發生改變，鋰(li)離(li)子(zi)(zi)電(dian)(dian)(dian)(dian)池(chi)雖(sui)然不(bu)(bu)存(cun)在(zai)記憶(yi)效應，但是充(chong)、放(fang)電(dian)(dian)(dian)(dian)不(bu)(bu)當會(hui)嚴重影響電(dian)(dian)(dian)(dian)池(chi)性能。

充電注意事項

鋰離子電(dian)(dian)池過度(du)充放(fang)電(dian)(dian)會對正(zheng)負(fu)極造(zao)(zao)成(cheng)永久性損(sun)壞。過度(du)放(fang)電(dian)(dian)導致負(fu)極碳片層結構出現(xian)塌陷，而塌陷會造(zao)(zao)成(cheng)充電(dian)(dian)過程中鋰離子無(wu)法插入；過度(du)充電(dian)(dian)使(shi)過多的鋰離子嵌入負(fu)極碳結構，而造(zao)(zao)成(cheng)其中部分(fen)鋰離子再也(ye)無(wu)法釋放(fang)出來。

充(chong)(chong)(chong)電(dian)(dian)(dian)量(liang)等于充(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)乘(cheng)以充(chong)(chong)(chong)電(dian)(dian)(dian)時(shi)間，在充(chong)(chong)(chong)電(dian)(dian)(dian)控制電(dian)(dian)(dian)壓一定的情況下，充(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)越(yue)大（充(chong)(chong)(chong)電(dian)(dian)(dian)速度越(yue)快），充(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)量(liang)越(yue)小。電(dian)(dian)(dian)池(chi)充(chong)(chong)(chong)電(dian)(dian)(dian)速度過快和終止電(dian)(dian)(dian)壓控制點不(bu)當，同樣會造成電(dian)(dian)(dian)池(chi)容量(liang)不(bu)足，實(shi)際是電(dian)(dian)(dian)池(chi)的部(bu)分電(dian)(dian)(dian)極活性物質(zhi)沒有得到(dao)充(chong)(chong)(chong)分反應就停止充(chong)(chong)(chong)電(dian)(dian)(dian)，這(zhe)種充(chong)(chong)(chong)電(dian)(dian)(dian)不(bu)足的現象隨著循環(huan)次數的增加而(er)加劇。

放(fang)電

第(di)一次充(chong)放(fang)(fang)(fang)電，如果時(shi)(shi)間能(neng)較(jiao)長(一般(ban)3--4小時(shi)(shi)足(zu)夠)，那么(me)可以使(shi)電極盡可能(neng)多的達到(dao)最高氧化(hua)態（充(chong)足(zu)電），放(fang)(fang)(fang)電（或使(shi)用）時(shi)(shi)則強制放(fang)(fang)(fang)到(dao)規定的電壓、或直至自動關機，如此能(neng)激活電池使(shi)用容量。

但在鋰離(li)子(zi)電(dian)池(chi)的(de)平常使用中，不需要(yao)如此操作，可以隨時根(gen)據需要(yao)充電(dian)，充電(dian)時既不必要(yao)一定充滿電(dian)為止(zhi)，也不需要(yao)先放(fang)電(dian)。象首次充放(fang)電(dian)那樣的(de)操作，只需要(yao)每隔3--4個月進(jin)行連續的(de)1--2次即可。