The electric vehicle market is developing rapidly due to the declining cost, the gradual improvement of supporting facilities, and the promotion of environmental protection policies. Among them, the lithium iron phosphate battery route, which was not optimistic before, has surpassed the ternary lithium battery route.

　　This is because lithium iron phosphate batteries have stronger advantages and are more suitable for use in electric vehicles.

　　The market is the best touchstone. The data shows that compared with the ternary lithium battery, the cycle life of the lithium iron phosphate battery can reach more than 2000 times, which is better than the ternary lithium battery. In terms of thermal stability, its maximum decomposition temperature can reach about 500°C, while the decomposition temperature of ternary lithium batteries is only 200-300°C, which is not as good as lithium iron phosphate batteries.

　　Coupled with technological progress, the energy density of lithium iron phosphate batteries has also been significantly improved. At present, the lithium iron phosphate battery can make the whole vehicle reach a driving range of 400 to 600 kilometers, which can meet the needs of most passenger cars.

　　Speaking of the technological progress of lithium iron phosphate batteries, BYD's self-developed blade batteries are also worth mentioning. Each blade battery has a length of 96 cm, a width of 9 cm, and a height of 1.35 cm. The module-free design enables the battery pack space utilization rate to reach 60%, thereby increasing the volumetric energy density by 50%. And in the strict acupuncture test, it did not leak, smoke, fire, or explode.

　　Another factor is that materials such as cobalt and nickel required for ternary lithium batteries are scarce resources, difficult to obtain and expensive. Lithium iron phosphate is just on the opposite.

　　Technological progress has brought about an increase in the loading volume, and has gradually turned lithium iron phosphate batteries from being left out of the cold to becoming hot.