Surprise! A breakthrough has been made in the energy density technology of lithium iron phosphate batteries. The poor energy density of lithium iron phosphate batteries is a shortcoming known to the public. Now the capacity density of lithium iron phosphate batteries is generally around 150Wh/kg. Even if they do better, it is still around 160Wh/kg. Compared with the 200Wh/kg energy density of the ternary battery, there is a big gap.
Breakthrough in energy density technology of lithium iron phosphate battery
Now, some domestic companies have started to develop energy density on the three gradients of 180Wh/kg, 200Wh/kg and 220Wh/kg, and they have obtained very good pictures. Now 180Wh/kg has started two games. . And once it reaches a higher gradient, it means that the lithium iron phosphate battery has the opportunity to enter the passenger car field and be used in passenger cars!
Lithium iron phosphate batteries are applied by means of nanotechnology and lithium-rich technology, and their actual energy density will be greatly improved, and there is no problem with lithium iron phosphate batteries achieving a cost of less than 2 yuan/Wh.Also read:odm 200 ah lithium manufacturer
Anchi Technology's LiFePO4 battery has an energy density of 175Wh/kg
Anchi Technology was established in May 2016 with a registered capital of RMB 499 million. It is an innovative new energy technology company integrating R&D, production and sales of power batteries. Anchi Technology has mass-produced 61.5Ah batteries with an energy density of 175Wh/kg, and the second-generation standard power battery system has an energy density of >140Wh/kg, which is at the leading level in China and can be applied to passenger cars, special vehicles and logistics. Various models such as cars and buses; the research and development of 185wh/kg power high energy density power battery products is expected to be put into mass production next year. At present, the production line can achieve a daily output of 12,000 cells, which has reached the planned production capacity of 200 million Ah in the first phase, and the production line utilization rate has reached more than 90%.
Through continuous technological innovation, the energy density of 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.Also read:48v lithium ion battery 400ah
Guoxuan Hi-Tech lithium iron phosphate battery single energy density has reached 180wh/kg
Guoxuan Hi-Tech stated on the interactive platform that the energy density of the company's 32131 lithium iron phosphate battery has reached 180wh/kg, and the company plans to increase it to more than 200wh/kg in the next two years. In terms of other batteries, Guoxuan Hi-Tech once said in the "2019 Exploring the Future Pattern of Power Batteries" research activity carried out by the Power Battery Application Branch of the China Chemical and Physical Power Industry Association and Battery China. The major scientific and technological projects of energy density are currently progressing smoothly, and the energy density of the pouch cells independently developed by the company has reached 302Wh/kg. The company will continue to focus on this major scientific and technological project, and plans to promote the industrialization of related products this year.
It is reported that Guoxuan Hi-Tech's "190Wh/kg lithium iron phosphate battery research and development and industrialization" project team has made breakthroughs in the energy density of lithium iron phosphate batteries through continuous optimization of the battery chemical system, continuous innovation of battery structure design, and continuous upgrade 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.Also read:eve 280ah lifepo4
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 system. The European and American power battery market basically uses more lithium iron phosphate, while Japan and South Korea mainly use 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 in the phosphate system. However, if the core material content of the entire positive electrode can be increased to more than 30% in the positive electrode 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 cell can reach more than 300Wh/kg, even exceeding the energy density currently achieved by the ternary system.
While improving the specific energy of the positive electrode material, improving the specific energy of the negative electrode material is also a major technological breakthrough direction. In the current lithium iron phosphate battery, if the anode material still uses 370 graphite, it is indeed difficult to achieve high specific energy. Therefore, silicon-based, including selenium-based high specific energy materials, are now valued by the industry. Therefore, under the current system, if the lithium iron phosphate battery can be fully done, the energy density can reach about 120Wh/kg, which is no problem for electric vehicles.