What types of batteries for new energy vehicles?

As a relatively mature technology, lead-acid batteries are still the only batteries for electric vehicles that can be processed in large quantities because of their lower cost and ability to discharge at a high rate. During the Beijing Olympics, there were 20 electric vehicles using lead-acid batteries to provide transportation services for the Olympics. However, the specific energy, specific power, and energy density of lead-acid batteries are very low, and an electric vehicle using this as a power source cannot have a good speed and cruising range. 2. Although nickel-cadmium storage batteries and nickel-hydrogen storage batteries have better performance than lead-acid batteries, they contain heavy metals, which will cause environmental pollution after being used and abandoned. Ni-MH power lithium-ion battery has just entered a mature stage, and it is the only battery system that has been practically verified, commercialized, and large-scale in the battery system used in hybrid electric vehicles. The current 99% of the market share of the current hybrid lithium-ion battery is nickel-metal hydride. Power lithium-ion battery, the representative of commercialization is Toyota's Prius. At present, the world’s important automotive power lithium-ion battery manufacturers include Japan’s PEVE and Sanyo. PEVE occupies 85% of the global market share of nickel-hydrogen batteries for hybrid power vehicles. At present, important commercial hybrid vehicles such as Toyota’s Prius, Alphard and Estima, Honda's Civic, Insight, etc. all use PEVE's Ni-MH power lithium-ion battery pack. In my country, Changan Jiexun, Chery A5, FAW Besturn, GM Grand Hyatt and other brand cars have been in demonstration operation. They also use nickel-metal hydride batteries. However, the batteries are mainly purchased from abroad. The use of domestic nickel-metal hydride batteries in automobiles It is still in the Ru0026D matching stage. 3. Lithium storage batteries Traditional lead-acid batteries, nickel-cadmium storage batteries and nickel-hydrogen storage batteries have relatively mature technologies, but their use in automobiles as power lithium-ion storage batteries poses greater problems. At present, more and more automobile manufacturers choose to use lithium batteries as the power lithium-ion batteries for new energy vehicles. Because the lithium-ion power lithium-ion battery has the following advantages: high working voltage (3 times that of nickel-cadmium battery hydrogen-nickel battery); large specific energy (up to 165WH/㎏, which is 3 times that of nickel hydrogen battery); small size; Light weight; long cycle life; low self-discharge rate; no memory effect; no pollution, etc. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What is the structure of a carbon storage battery?