What Type of Battery is Used in New Energy Vehicles?
1 Answers
New energy vehicle batteries can be divided into two main categories: storage batteries and fuel cells. Storage batteries are suitable for pure new energy vehicles, while fuel cells are specifically designed for fuel cell new energy vehicles. Storage batteries can be classified into lead-acid batteries, nickel-based batteries (nickel-metal hydride and nickel-metal hydride batteries, nickel-cadmium and nickel-zinc batteries), sodium-beta batteries (sodium-sulfur and sodium-nickel chloride batteries), secondary lithium batteries, air batteries, and other types. Fuel cells, which are exclusively used in fuel cell new energy vehicles, can be categorized into alkaline fuel cells (AFC), phosphoric acid fuel cells (PAFC), molten carbonate fuel cells (MCFC), solid oxide fuel cells (SOFC), proton exchange membrane fuel cells (PEMFC), and direct methanol fuel cells (DMFC). The role of the battery varies slightly depending on the type of new energy vehicle. In pure new energy vehicles equipped only with storage batteries, the battery serves as the sole power source for the vehicle's drive system. In hybrid vehicles equipped with a traditional engine (or fuel cell) and a storage battery, the battery can act either as the primary power source or as an auxiliary power source for the drive system. Specifically, the battery functions as the primary power source during low-speed operation and startup, as an auxiliary power source during full-throttle acceleration, and as an energy storage device during normal driving, deceleration, or braking.
