LR6 battery.Lithium iron phosphate battery energy density technology breaks through

　　Lithium iron phosphate batteries are applied through nanotechnology and lithium-rich technology. Their actual energy density will be greatly improved, and there is no problem in achieving a cost of less than 2 yuan/watt-hour for lithium iron phosphate batteries.

　　Through continuous technological innovation, the energy density of the lithium iron phosphate batteries produced by the company can reach 175Wh/kg, and the system energy density can reach more than 140Wh/kg, and mass production has been achieved.

　　It is reported that Guoxuan Hi-Tech's "190Wh/kg lithium iron phosphate battery research and development and industrialization" project team has achieved a breakthrough in the energy density of lithium iron phosphate batteries through continuous optimization of the battery chemical system, continuous innovation of battery structural design, and continuous upgrading of battery safety protection. 190Wh/kg, pushing the development of lithium iron phosphate batteries to a new height, making Guoxuan Hi-Tech lithium iron phosphate batteries an industry benchmark.

　　There is a lot of room for improving the energy density of lithium iron phosphate batteries

　　At present, from the perspective of positive and negative electrodes, domestic and foreign manufacturers mainly use lithium iron phosphate cathode material systems. The European and American power battery markets basically use more lithium iron phosphate, while Japan and South Korea mainly use the ternary system. , it can be said that the current lithium iron phosphate system power battery is still the most mature and safest lithium-ion power battery.

　　Although, lithium iron phosphate has almost the lowest energy density among the phosphate systems. But if the core material content of the entire cathode can be increased to more than 30% in the cathode system, then its actual energy density will be greatly improved. For example, if a lithium-rich system is made into a battery, the energy density of a single battery can reach more than 300Wh/kg, even exceeding the energy density currently achieved by the ternary system.

　　While improving the specific energy of positive electrode materials, improving the specific energy of negative electrode materials is also a major technological breakthrough direction. In current lithium iron phosphate batteries, if the negative electrode material is still 370 graphite, it will indeed be difficult to achieve high specific energy. Therefore, the industry now attaches great importance to silicon-based, including selenium-based high specific energy materials. Therefore, under the current system, if the lithium iron phosphate battery can be fully developed, the energy density can reach about 120Wh/kg, which will not cause any problems for electric vehicles.

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