一、電動車鉛酸電池改鋰電池可以嗎
鉛酸電池電動車可以改鋰電池,但是(shi)不建議更換。具(ju)體原因如下:
1、新國標(biao)出臺(tai)后(hou),對電動(dong)車(che)的各項標(biao)準有(you)了嚴格規定,這意味著(zhu)對電動(dong)車(che)檢測將更(geng)加嚴格。如果自(zi)己將鉛酸電池更(geng)換(huan)為(wei)鋰電池,很(hen)有(you)可能面(mian)臨(lin)無法上(shang)牌的風(feng)險。
2、如果將鉛酸電(dian)池更(geng)換為鋰(li)電(dian)池,還必須(xu)將電(dian)壓(ya)保持與原(yuan)鉛酸電(dian)池相同。此外,充電(dian)器也得更(geng)換為專用的鋰(li)電(dian)充電(dian)器。
3、將鉛酸電(dian)(dian)(dian)池(chi)更換為鋰(li)電(dian)(dian)(dian)池(chi),需要考慮電(dian)(dian)(dian)池(chi)倉的大(da)小。一般情況下鉛酸電(dian)(dian)(dian)池(chi)倉都相對較(jiao)(jiao)大(da),而鋰(li)電(dian)(dian)(dian)池(chi)的體積(ji)都相對較(jiao)(jiao)小。
4、鋰電(dian)池與鉛酸(suan)電(dian)池相比(bi),其穩定性更加差(cha),如果遇水或(huo)者操作不當,很容易發生(sheng)爆炸的風險。
二、電動車鉛酸電池怎么更換鋰電池
電(dian)動車的鉛(qian)酸電(dian)池(chi)更換成鋰(li)電(dian)池(chi)應該注意如(ru)下幾(ji)個(ge)方面:
1、了解自己當下電(dian)動車使用的電(dian)池(chi)(chi)是(shi)什么電(dian)池(chi)(chi),電(dian)池(chi)(chi)的放電(dian)容量、倍率(最大放電(dian)是(shi)多少)。建議更換的鋰(li)電(dian)池(chi)(chi)在放電(dian)方面與電(dian)動車原裝電(dian)池(chi)(chi)一樣。
2、了(le)解(jie)電(dian)(dian)動車(che)電(dian)(dian)機最(zui)大(da)允許(xu)(xu)功(gong)率是(shi)多(duo)少,建議鋰電(dian)(dian)池放電(dian)(dian)功(gong)率最(zui)大(da)應該低(di)于電(dian)(dian)動車(che)電(dian)(dian)機最(zui)大(da)允許(xu)(xu)功(gong)率,防止(zhi)電(dian)(dian)機燒壞。
3、了解電(dian)動車接線(xian)電(dian)線(xian)規格(ge),查看(kan)電(dian)線(xian)允許通過(guo)的最大電(dian)流(liu),防止電(dian)流(liu)過(guo)大燒(shao)毀電(dian)線(xian)。
4、了解電(dian)動(dong)車其他電(dian)子(zi)元器件電(dian)流允(yun)許(xu)(xu)限值(zhi),建議電(dian)流應(ying)小于允(yun)許(xu)(xu)的限流值(zhi)。
5、鋰(li)電(dian)池外觀尺寸大小,一般來說,一樣容量和(he)放電(dian)的鋰(li)電(dian)池要比鉛酸電(dian)池小很多,因此電(dian)動(dong)車放置電(dian)池的地方(fang)會(hui)(hui)有空(kong)隙(xi),可以用絕緣物質填(tian)充(chong),防(fang)止(zhi)電(dian)池松動(dong),震(zhen)動(dong)頻(pin)繁或過(guo)多,會(hui)(hui)發生安全事故(gu)。
6、鋰電(dian)(dian)(dian)池容量的選(xuan)擇(ze),一(yi)般建議(yi)選(xuan)擇(ze)容量與電(dian)(dian)(dian)動(dong)車原裝電(dian)(dian)(dian)池一(yi)樣的,一(yi)般建議(yi)選(xuan)擇(ze)兩倍容量以內,容量過大容易發生安全事故(gu)。
7、鋰(li)(li)電(dian)(dian)(dian)池種(zhong)類(lei)(lei)的選擇(ze),目前電(dian)(dian)(dian)動車鋰(li)(li)電(dian)(dian)(dian)池可(ke)供考慮(lv)的種(zhong)類(lei)(lei)有幾種(zhong)。18650鋰(li)(li)離子(zi)電(dian)(dian)(dian)池、磷酸(suan)鐵(tie)鋰(li)(li)電(dian)(dian)(dian)池和聚合(he)物(wu)鋰(li)(li)電(dian)(dian)(dian)池。一般來說(shuo)價格(ge)方面(mian)如(ru)果鋰(li)(li)電(dian)(dian)(dian)池電(dian)(dian)(dian)芯都是(shi)新的情(qing)況(kuang)下(xia),聚合(he)物(wu)鋰(li)(li)電(dian)(dian)(dian)池價格(ge)最高(gao),磷酸(suan)鐵(tie)鋰(li)(li)電(dian)(dian)(dian)池次(ci)(ci)之(zhi)(zhi),18650鋰(li)(li)電(dian)(dian)(dian)池最低,因(yin)為聚合(he)物(wu)鋰(li)(li)電(dian)(dian)(dian)池在密度能(neng)量比(bi)(bi)上要(yao)大,同等容量規格(ge)下(xia),重(zhong)量要(yao)輕很多。在安全性能(neng)方面(mian),磷酸(suan)鐵(tie)鋰(li)(li)電(dian)(dian)(dian)池比(bi)(bi)較好(hao),18650鋰(li)(li)電(dian)(dian)(dian)池次(ci)(ci)之(zhi)(zhi)。因(yin)此要(yao)看(kan)自己的經濟(ji)允許做選擇(ze)。
8、在電(dian)(dian)池電(dian)(dian)壓方面,要注意的(de)是原鉛酸(suan)電(dian)(dian)池在更(geng)換鋰電(dian)(dian)池時,需要要求與原車電(dian)(dian)池電(dian)(dian)壓相(xiang)符(fu),容量(liang)可(ke)(ke)以加大(da),續航(hang)時間更(geng)長。即使是相(xiang)同容量(liang),鋰電(dian)(dian)池續航(hang)里(li)程(cheng)和壽(shou)命也(ye)會更(geng)長。其次,要注意的(de)是原充電(dian)(dian)器不可(ke)(ke)充鋰電(dian)(dian),需要單獨購買或(huo)定做(zuo)專用充電(dian)(dian)器。
9、電動(dong)車鉛酸(suan)電池換成鋰(li)電池,電池壽(shou)命會(hui)更長嗎(ma)?正(zheng)常使用情(qing)況下,鋰(li)電本身的大電流放電特性雖(sui)然是(shi)短(duan)板,在(zai)擁堵道路的頻繁啟動(dong),會(hui)影響電池壽(shou)命,但是(shi)購買(mai)的鋰(li)電池如果是(shi)正(zheng)規廠家生(sheng)產(chan)的且帶有bms管理系統的,壽(shou)命要比鉛酸(suan)電池長得多。
從國家綠色可持續發展方向來看,鉛酸電池對環境污染危害比較大,而鋰電池對環(huan)境比較友好,因此鋰電(dian)池代替鉛酸電(dian)池可能性是比較大的。