鋰電池電動車怎么樣
現在市面上,賣的最多的還是鉛酸電池電動車,但有不(bu)少地區開始引進鋰(li)(li)電(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)動(dong)車(che)了。鋰(li)(li)電(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)動(dong)車(che)顧名(ming)思義(yi),簡單來說就是把(ba)鉛(qian)酸換(huan)成了鋰(li)(li)電(dian)(dian)(dian)池(chi)(chi)而已。那和鉛(qian)酸電(dian)(dian)(dian)池(chi)(chi)相(xiang)比,電(dian)(dian)(dian)動(dong)車(che)鋰(li)(li)電(dian)(dian)(dian)池(chi)(chi)好(hao)不(bu)好(hao)?它真的有企業,經銷(xiao)商說的那么(me)傳神么(me)?如今國家大(da)力提倡節(jie)能、綠色、環保,一說到(dao)電(dian)(dian)(dian)動(dong)車(che)鋰(li)(li)電(dian)(dian)(dian)池(chi)(chi)好(hao)不(bu)好(hao)?大(da)家觀點(dian)都(dou)非常(chang)一致,“鋰(li)(li)電(dian)(dian)(dian)池(chi)(chi)比鉛(qian)酸電(dian)(dian)(dian)池(chi)(chi)要輕,壽命(ming)也長,但是價格非常(chang)貴”,但是到(dao)底好(hao)在哪時(shi)?大(da)家又顯得(de)都(dou)回答不(bu)上話來。
鋰電池電動車有哪些優缺點
鋰電池電動車優點
1、鋰電池壽命長重量輕體積小
鋰電池電動自行車的動力性能和(he)鉛酸電(dian)池(chi)(簡(jian)易款電(dian)動自行車(che)(che))差不多(duo),充電(dian)6~8小時(shi),根(gen)據電(dian)池(chi)容量(liang)不同可跑30~45公里,重(zhong)量(liang)只有鉛酸電(dian)池(chi)的1/5左右(you),鋰電(dian)池(chi)電(dian)動自行車(che)(che)最大(da)優點是壽命長(chang)。
聲明:說鋰電(dian)(dian)(dian)池(chi)價格(ge)貴的只(zhi)是看到(dao)表面,其實仔(zi)細(xi)算算費用和鉛酸(suan)蓄(xu)電(dian)(dian)(dian)池(chi)是差不(bu)多的,目前一般(ban)鋰電(dian)(dian)(dian)池(chi)保2年,鉛酸(suan)蓄(xu)電(dian)(dian)(dian)池(chi)保1年。
2、鋰電池具有免激活特性
在使用(yong)鋰(li)電池中應(ying)注意的(de)(de)是,電池放(fang)(fang)置一段(duan)時間后則進入(ru)休眠狀態,此(ci)時容(rong)量低于(yu)(yu)正常(chang)值,使用(yong)時間亦隨之縮短(duan)。但鋰(li)電池很容(rong)易激(ji)活,只(zhi)要經過3—5次正常(chang)的(de)(de)充放(fang)(fang)電循環就可(ke)激(ji)活電池,恢(hui)復正常(chang)容(rong)量。由(you)于(yu)(yu)鋰(li)電池本身的(de)(de)特性,決(jue)定(ding)了它幾乎(hu)沒有記憶效應(ying) 。因(yin)此(ci)用(yong)戶新鋰(li)電池在激(ji)活過程(cheng)中,是不需要特別的(de)(de)方法和設備(bei)的(de)(de)。
3、無記憶效應
消費(fei)者在給鉛酸蓄(xu)電池(chi)(chi),鎳電池(chi)(chi)充電時,一(yi)直都(dou)擔心(xin)電池(chi)(chi)發(fa)生記(ji)憶效應(ying),等用了鋰(li)電池(chi)(chi),大(da)家(jia)都(dou)可以松下(xia)一(yi)口氣,鋰(li)電池(chi)(chi)不(bu)帶記(ji)憶效應(ying)。要是(shi)還有(you)消費(fei)者不(bu)知道如何給鋰(li)電池(chi)(chi)充電,那不(bu)妨看看下(xia)面的內容。
鋰電池電動車的缺點
1、鋰電池電動車價格過高皆因鋰電池
目前鋰電池電動自行車的(de)(de)價(jia)格普遍比鉛酸電(dian)池電(dian)動車(che)高出幾百元到(dao)一千元,因此在市(shi)面上很難得到(dao)消費者(zhe)顧客的(de)(de)認可。鋰電(dian)池輕巧、環保,廢棄后不(bu)會產生環境污(wu)染,一旦應用技術成熟,市(shi)場銷量加大,鋰電(dian)池電(dian)動自行(xing)車(che)的(de)(de)價(jia)格才會有所降(jiang)下來。
2、鋰電池充電時間過長適得其反
鋰電(dian)(dian)(dian)(dian)池(chi)或充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器在(zai)(zai)電(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)(chong)滿后都(dou)(dou)會自動停充(chong)(chong)(chong),并不存在(zai)(zai)鎳(nie)電(dian)(dian)(dian)(dian)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器所(suo)謂的(de)(de)持(chi)續(xu)10幾小時的(de)(de)“涓流”充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)。也(ye)就是(shi)說,如(ru)果(guo)你的(de)(de)鋰電(dian)(dian)(dian)(dian)池(chi)在(zai)(zai)充(chong)(chong)(chong)滿后,放在(zai)(zai)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器上也(ye)是(shi)白充(chong)(chong)(chong)。而我們(men)(men)誰(shui)都(dou)(dou)無法保證電(dian)(dian)(dian)(dian)池(chi)的(de)(de)充(chong)(chong)(chong)放電(dian)(dian)(dian)(dian)保護電(dian)(dian)(dian)(dian)路的(de)(de)特(te)性(xing)永不變化和質量的(de)(de)萬無一(yi)失(shi),所(suo)以你的(de)(de)電(dian)(dian)(dian)(dian)池(chi)將長期處在(zai)(zai)危險的(de)(de)邊緣徘徊。這也(ye)是(shi)我們(men)(men)反對長充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)的(de)(de)另(ling)一(yi)個(ge)理(li)由。
此外在某(mou)些電(dian)動(dong)車上,充(chong)電(dian)超過一定的(de)(de)時間后,如果(guo)不去(qu)取下充(chong)電(dian)器,這(zhe)時系統(tong)不僅(jin)不停(ting)止(zhi)充(chong)電(dian),還將開(kai)始(shi)放電(dian)-充(chong)電(dian)循環。也許這(zhe)種做法的(de)(de)廠(chang)商自有(you)其目的(de)(de),但顯(xian)然(ran)對(dui)電(dian)池的(de)(de)壽命(ming)而言是不利的(de)(de)。所以(yi)在購買鋰(li)(li)電(dian)池電(dian)動(dong)車后,要咨詢企業或者(zhe)經銷商,做好鋰(li)(li)電(dian)池維護工作。
3、鋰電池動力性有待提高
鋰電(dian)池(chi)比起鉛(qian)酸蓄(xu)電(dian)池(chi)在充(chong)放電(dian)方面耐(nai)波動的能力差得(de)多,對于(yu)目前大功率車來(lai)說不能有效采用鋰電(dian)的一大癥狀也(ye)就在此,導致(zhi)耐(nai)用性下降。
4、鋰離子電池安全性問題突出
鋰電池的(de)安全性仍有待提高(gao)。鋰電池起(qi)火(huo)(huo)、燃燒甚至爆(bao)炸(zha)的(de)隱患目前(qian)仍無法完全消(xiao)除。車輛發生(sheng)(sheng)碰撞(zhuang)可能(neng)導致電池正負極(ji)材(cai)料沖破(po)隔膜,剎車時(shi)能(neng)量快速回充至電池時(shi)瞬間的(de)超(chao)高(gao)電流等(deng)原因都會(hui)導致電池發生(sheng)(sheng)短(duan)路(lu)、溫度(du)升高(gao),引(yin)起(qi)燃燒甚至爆(bao)炸(zha)。起(qi)火(huo)(huo)的(de)原因是碰撞(zhuang)、短(duan)路(lu)導致鋰離子析出,與空氣接觸會(hui)發生(sheng)(sheng)起(qi)火(huo)(huo)、燃燒。另外,鋰離子電池的(de)電解液(ye)是有機(ji)電解液(ye),這些物質(zhi)與空氣接觸后更容易起(qi)火(huo)(huo)燃燒。