鎳氫電池簡單知識
鎳氫電(dian)(dian)池規(gui)范叫法(fa):金屬(shu)氫化(hua)物鎳電(dian)(dian)池
標稱電(dian)(dian)壓(ya)(表示電(dian)(dian)池電(dian)(dian)壓(ya)的近似值):nX1.2V。(以3508氫電(dian)(dian)為例,n=3)
終止電壓(規定放電終止時):nX1.0V。
充電(dian)(dian)(dian)制式:(恒流(liu),在以(yi)0.2C放電(dian)(dian)(dian)至終止(zhi)電(dian)(dian)(dian)壓后開始(shi)恒流(liu)充電(dian)(dian)(dian))
1、0.4C充電(dian):以(yi)0.4C充電(dian)3.5h
2、完(wan)全充(chong)電(dian)(dian):以0.1C充(chong)電(dian)(dian)16h
放(fang)電性能:(只(zhi)說其(qi)一,與大家關系密切的)
0.2C放電(dian):以(yi)0.2C放電(dian)至終止(zhi)電(dian)壓,放電(dian)時間應(ying)不小于5h。
國(guo)家技術(shu)監督部門(men)鑒定氫電(dian)容量,是(shi)按照0.4C的(de)充電(dian)制式充電(dian),并按照0.2C的(de)放(fang)電(dian)制式放(fang)電(dian)的(de)。完全(quan)充電(dian)是(shi)用(yong)于(yu)(yu)鑒定電(dian)池的(de)儲存性能的(de),在儲存12個月后,經完全(quan)充電(dian)后,以0.2C放(fang)電(dian),時間不(bu)應低于(yu)(yu)4h。過充電(dian)性能:0.4C充電(dian)結束后,繼續以0.1C充電(dian)48h,應不(bu)變形、不(bu)漏(lou)夜(ye)、不(bu)冒煙(yan)、等等。
以(yi)上(shang)是對氫電國家標(biao)準(zhun)GB/T18288-2000的簡單描述,由此我們可以(yi)看出幾個問(wen)題:
1、對(dui)于氫電(dian),完全充(chong)電(dian)有好(hao)處,可以(yi)充(chong)的更(geng)飽,好(hao)象就(jiu)是大(da)家的激活概念。
2、但是,完全充電是有條件的,那就是0.1C,但市場上的充電器不會設計這么小的充電電流(以3508氫電計,應是50mA),如果用普通的充電器16小(xiao)時(shi),要(yao)么充電器充滿(man)后(hou)已經截止,剩下是浪費時(shi)間,要(yao)么充滿(man)后(hou)的(de)涓流(liu)過(guo)大造成過(guo)充。但氫電抗(kang)過(guo)充的(de)能力比鋰電強的(de)多。即使(shi)這樣我們也不應該去考驗它呀。
3、10幾個(ge)小(xiao)時(shi)(shi)的(de)(de)(de)(de)充(chong)電(dian)(dian)(dian)(dian)時(shi)(shi)間(jian)概(gai)念是從氫(qing)電(dian)(dian)(dian)(dian)時(shi)(shi)延續來的(de)(de)(de)(de),但對(dui)于鋰(li)電(dian)(dian)(dian)(dian)已經不(bu)(bu)(bu)(bu)適用了。氫(qing)電(dian)(dian)(dian)(dian)的(de)(de)(de)(de)規范有(you)一(yi)(yi)個(ge)完全充(chong)電(dian)(dian)(dian)(dian)的(de)(de)(de)(de)條(tiao)(tiao)款(kuan),但是有(you)條(tiao)(tiao)件的(de)(de)(de)(de)。而鋰(li)電(dian)(dian)(dian)(dian)根本(ben)沒有(you)相應的(de)(de)(de)(de)條(tiao)(tiao)款(kuan),只不(bu)(bu)(bu)(bu)過(guo)在檢測前給一(yi)(yi)個(ge)預循(xun)環,而預循(xun)環充(chong)電(dian)(dian)(dian)(dian)恒流(liu)到4.2V即(ji)結束,根本(ben)沒有(you)后(hou)面的(de)(de)(de)(de)橫壓補電(dian)(dian)(dian)(dian)過(guo)程(cheng)。鋰(li)電(dian)(dian)(dian)(dian)不(bu)(bu)(bu)(bu)用所(suo)謂的(de)(de)(de)(de)“激(ji)(ji)活”。電(dian)(dian)(dian)(dian)池生產(chan)廠(chang)根本(ben)沒有(you)什么(me)激(ji)(ji)活不(bu)(bu)(bu)(bu)激(ji)(ji)活的(de)(de)(de)(de)過(guo)程(cheng),生產(chan)出的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)池都(dou)是活的(de)(de)(de)(de),只是氫(qing)電(dian)(dian)(dian)(dian)不(bu)(bu)(bu)(bu)適宜長(chang)時(shi)(shi)間(jian)儲存(cun),時(shi)(shi)間(jian)長(chang)了會“死”,建(jian)議大家(jia)氫(qing)電(dian)(dian)(dian)(dian)不(bu)(bu)(bu)(bu)用時(shi)(shi),每(mei)三個(ge)月(yue)進行一(yi)(yi)個(ge)充(chong)放循(xun)環,并充(chong)滿保存(cun)。保存(cun)溫度(du)不(bu)(bu)(bu)(bu)能(neng)過(guo)高。(柜臺內被射(she)燈照射(she)很(hen)長(chang)時(shi)(shi)間(jian)的(de)(de)(de)(de)不(bu)(bu)(bu)(bu)要買(mai),儲存(cun)很(hen)長(chang)時(shi)(shi)間(jian)的(de)(de)(de)(de)不(bu)(bu)(bu)(bu)要買(mai))
4、氫電(dian)充(chong)(chong)(chong)飽(bao)(bao)后電(dian)壓是nX1.45V,以3508氫電(dian)為例是4.35V,市場上的(de)(de)品(pin)牌(pai)座(zuo)充(chong)(chong)(chong),如果充(chong)(chong)(chong)氫電(dian)滿意,則絕對不(bu)能充(chong)(chong)(chong)鋰(li)電(dian),如果充(chong)(chong)(chong)鋰(li)電(dian)滿意則充(chong)(chong)(chong)氫電(dian)不(bu)飽(bao)(bao),但不(bu)會(hui)損壞。因為這種座(zuo)充(chong)(chong)(chong)沒(mei)有判(pan)斷電(dian)池類型的(de)(de)能力,只是固定好了(le)一(yi)個截止電(dian)壓。
5、所(suo)以,我們在市場上看到(dao)的(de)旅(lv)行充側(ce)面有一個氫電(dian)的(de)選(xuan)擇開關,實(shi)際上就是切換(huan)截(jie)止(zhi)電(dian)壓的(de)。
