純電(dian)(dian)動(dong)汽車，是指以已充滿電(dian)(dian)的(de)蓄電(dian)(dian)池(chi)供(gong)電(dian)(dian)給電(dian)(dian)動(dong)機(ji)，由電(dian)(dian)動(dong)機(ji)推動(dong)的(de)車輛(liang)(liang)，而電(dian)(dian)池(chi)的(de)電(dian)(dian)量由外部電(dian)(dian)源補充，并且符合道路(lu)交通(tong)、安全法規各項要求的(de)車輛(liang)(liang)。

純(chun)電(dian)動(dong)汽車完全由(you)可充電(dian)電(dian)池提供動(dong)力源的(de)汽車，由(you)于對環境影響相(xiang)對傳統汽車較小，其前(qian)景被廣泛看好(hao)。

電動(dong)汽(qi)(qi)車(che)的(de)(de)(de)組成包括：電力(li)驅(qu)(qu)動(dong)及控(kong)(kong)制系統(tong)(tong)、驅(qu)(qu)動(dong)力(li)傳動(dong)等(deng)機(ji)(ji)械系統(tong)(tong)、完成既(ji)定(ding)任(ren)務(wu)的(de)(de)(de)工作裝(zhuang)置(zhi)等(deng)。電力(li)驅(qu)(qu)動(dong)及控(kong)(kong)制系統(tong)(tong)是電動(dong)汽(qi)(qi)車(che)的(de)(de)(de)核(he)心(xin)，也是區別(bie)于(yu)內(nei)燃(ran)(ran)機(ji)(ji)汽(qi)(qi)車(che)的(de)(de)(de)最大不(bu)同點。電力(li)驅(qu)(qu)動(dong)及控(kong)(kong)制系統(tong)(tong)由驅(qu)(qu)動(dong)電動(dong)機(ji)(ji)、電源和電動(dong)機(ji)(ji)的(de)(de)(de)調(diao)速(su)控(kong)(kong)制裝(zhuang)置(zhi)等(deng)組成。電動(dong)汽(qi)(qi)車(che)的(de)(de)(de)其(qi)他(ta)裝(zhuang)置(zhi)基本(ben)與內(nei)燃(ran)(ran)機(ji)(ji)汽(qi)(qi)車(che)相(xiang)同。