纯电动车，又称电瓶车、电池电动车（英语：Battery Electric Vehicle，缩写：BEV），是指以事前已充满电的蓄电池（大容量电瓶）供电给电动机，由电动机推动的车辆，而电池的电量由外部电源补充，媒体常简称作电动车，故常与其他以电力推动的车辆（如无轨电车）混淆。由于不会在路面排放废气，因此不会污染路面的空气，但这不代表电动车必定不会产生污染或排碳，在产生电力给纯电用车的过程中，视发电方式而会有不同程度的污染及碳排放；在制造过程，纯电动车产生的碳排放量也较多。

A battery electric vehicle (BEV), battery-only electric vehicle (BOEV) or all-electric vehicle is a type of electric vehicle (EV) that uses chemical energy stored in rechargeable battery packs. BEVs use electric motors and motor controllers instead of internal combustion engines (ICEs) for propulsion. They derive all power from battery packs and thus have no internal combustion engine, fuel cell, or fuel tank. BEVs include bicycles, scooters, skateboards, rail cars, watercraft, forklifts, buses, trucks and cars. Since the introduction of the all-electric Nissan Leaf in December 2010, about 1 million highway legal plug-in electric vehicles have been sold worldwide by mid-September 2015, of which about 620,000 are all-electric passenger cars and light-duty trucks. The best-selling all-electric car in history is the Nissan Leaf, with sales of 200,000 units worldwide by early December 2015, followed by the Tesla Model S, with global sales of 100,000 units also by early December 2015.