Development review of electric vehicle power battery

Electric energy has replaced oil and other fossil fuels as the driving force of electric vehicle, and also it is the only long-term solution for the future transportation. Power battery technology is the development core of electric vehicles. Lead-acid batteries, nickel hydrogen batteries and lithium ion batteries for electric vehicles were analyzed,and the prospect of vehicle power battery market was discussed. It is pointed out that lithium-ion battery is the preferred technology for vehicle batteries.