What kinds of batteries are commonly used in electric vehicles?

Lead-acid batteries are widely used and studied by all kinds of electric vehicles in various countries because of their low price, rich material sources, high specific power, mature technology and manufacturing process and high resource recovery rate. But lead pollution is high and energy density is low, which means it is too heavy.

2. Lithium-ion battery

Lithium-ion batteries are generally considered to have the following advantages: large specific energy; High specific power; Small self-discharge; No memory effect; Good cycle characteristics; Can be discharged quickly with high efficiency;

However, there is still a lot of hard work to be done to use lithium-ion batteries on a large scale in commercial electric vehicles. The main reasons are: pure electric vehicles, electric buses and hybrid electric vehicles use a large number of batteries, the system is complex, the safety is more difficult, the requirements for reliability and consistency are higher, and the price is too high.

3. Ni-MH battery

It has all the excellent characteristics of nickel-cadmium battery, and its energy density is higher than that of nickel-cadmium battery. There is no pollution to the environment, and it can be recycled, which conforms to the concept of sustainable development. However, the cost of Ni-MH battery is too high, too expensive.

Extended data:

All electric cars are driven by batteries, but there are many kinds of batteries. The battery quality will directly affect the cruising range and battery life of electric vehicles. At present, the common electric vehicle batteries on the market include lead-acid batteries, lithium batteries, nickel-cadmium batteries and nickel-hydrogen batteries.

After the film was banned, some electric vehicle enterprises in Guangdong have begun to transform and devote themselves to the production and research and development of lithium electric vehicles. In addition, graphene batteries have begun to fully enter people's field of vision.

Baidu encyclopedia-electric vehicle battery