鉅(ju)大(da)LARGE | 選擇量:189次(ci) | 2028年04月27日
充電鋰離子電池的容量檢測方法是什么?
1500mAh的充電電池,充滿電(dian)(dian)(dian)。放電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)1500mA能達到1小(xiao)時(shi)就說(shuo)明容量已夠。還(huan)是用750mA放電(dian)(dian)(dian)2小(xiao)時(shi)來檢測。但是電(dian)(dian)(dian)壓在0.9V時(shi)(1.2V充電(dian)(dian)(dian)電(dian)(dian)(dian)池)仍有標稱電(dian)(dian)(dian)流(liu)放出,怎(zen)么理(li)解?
測量電池容量一般就是測量電池電壓。充電器在充電時檢測電池電壓,當電壓達到規定電壓值時就認為充滿。如鋰電池的(de)(de)電(dian)(dian)(dian)壓(ya)充到(dao)4.2V時(shi)就(jiu)認為充滿。檢測電(dian)(dian)(dian)壓(ya)的(de)(de)電(dian)(dian)(dian)壓(ya)表精度要達(da)到(dao)正負1%的(de)(de)精度。因鋰電(dian)(dian)(dian)池過(guo)充電(dian)(dian)(dian)要損(sun)壞。如(ru)果(guo)想監視電(dian)(dian)(dian)池充放(fang)電(dian)(dian)(dian)的(de)(de)話(hua),書上(shang)有很(hen)成(cheng)熟的(de)(de)電(dian)(dian)(dian)路(lu)可以參(can)考,如(ru)果(guo)只是測量一(yi)下(xia)的(de)(de)話(hua)那就(jiu)好辦了,根據容量計算一(yi)下(xia)負載電(dian)(dian)(dian)阻,用標準放(fang)電(dian)(dian)(dian)電(dian)(dian)(dian)流放(fang)電(dian)(dian)(dian),這(zhe)時(shi)再檢測電(dian)(dian)(dian)壓(ya),只要能達(da)到(dao)或(huo)接近標稱(cheng)的(de)(de)放(fang)電(dian)(dian)(dian)時(shi)間就(jiu)行。
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