Electric vehicle battery
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An electric vehicle battery is a rechargeable battery used to power the electric motors of a battery electric vehicle (BEV) or hybrid electric vehicle (HEV).
Nissan Leaf cutaway showing part of the battery in 2009
GM Ovonic NiMH battery module
Prototypes of 50 W·h/kg lithium-ion-polymer battery. Newer Li-ion cells can provide up to 265 W·h/kg and last through thousands of charging cycles.
Battery pack on the roof of a battery electric bus
Hybrid electric vehicle
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A hybrid electric vehicle (HEV) is a type of hybrid vehicle that combines a conventional internal combustion engine (ICE) system with an electric propulsion system. The presence of the electric powertrain is intended to achieve either better fuel economy than a conventional vehicle or better performance. There is a variety of HEV types and the degree to which each functions as an electric vehicle (EV) also varies. The most common form of HEV is the hybrid electric car, although hybrid electric trucks, buses, boats, and aircraft also exist.
The Toyota Prius is the world's best-selling hybrid car, with cumulative global sales of 5 million units up until September 2022
A New Flyer XDE60 Xcelsior articulated hybrid-electric bus operated by MBTA
The Toyota Highlander Hybrid has a series-parallel drivetrain.
The Saturn Vue Green Line is a mild hybrid.