Early electric vehicles mostly use lithium iron phosphate batteries, but later with the subsidy policy with battery energy density, coupled with users' requirements on pure electric driving distance and the development of three lithium battery skills, now most of the new energy models on the market carry three lithium batteries.

In the era when pure electric range and battery energy density have become the two items that affect the core of subsidies, the blind pursuit of subsidies actually makes many products with immature skills sacrifice safety for higher energy density, and various fires and recalls are paying for these chaos.

However, the development direction of electric shopping mall is good after all. With the decline of subsidy policy and the gradual weakening of policy dividend, the pursuit of pure electric range and battery energy density in the industry is no longer as fanatical as before. Lithium iron phosphate for higher safety, higher economy, better cycle life began to be selected by more car companies.
Although allowance retrograde, but about consumer character, the most crucial still is battery of lithium iron phosphate can obtain allowance? Under the new state subsidy guidelines, the vehicle must have a range of at least 300km and an energy density of at least 125Wh/kg for the battery system.
In recent years, with the advancement of technology, the energy density of lithium iron phosphate batteries has been improved. Byd, Lichen, Guoxuan and other battery manufacturers discuss the production of lithium iron phosphate battery cell energy density can reach 190Wh/kg, and is expected to reach 220Wh/kg. Byd's blade battery also has an energy density of 140Wh/kg and a range of 605km under NEDC standards.
So in terms of skills, it's not that difficult to achieve both of these goals. So will lithium iron phosphate batteries with long cycle life and lower cost occupy the main market?
First of all, the demand is certain that the performance of the blade battery is excellent. It is not a bad thing to use the lithium iron phosphate battery to make up for the lack of lithium iron phosphate battery, and it has higher safety. But for lithium iron phosphate market, due to the limitations of data, the energy density of the cell is difficult to develop by leaps and bounds. After all, not all car companies have blade batteries such AS CTP battery pack skills.

In general, ternary lithium battery has higher development potential. As a new encapsulation skill, blade battery can make lithium iron phosphate battery reach the level of ternary lithium battery at this stage, and it is safer and cheaper. But in the future terpolymer lithium will still be the mainstream application skills, BYD also admitted that terpolymer lithium battery as the core of the blade battery theoretically will have a stronger battery life, but in the form of blade battery, collision (especially the extrusion aspect) needs more research.

http://http://huyi.tigerwing.net/AdminArticle/AddArticle