Can lithium iron phosphate batteries 'counterattack'?

A few days ago, the Ministry of Industry and Information Technology released the 'Catalog of Recommended Models for the Promotion and Application of New Energy Vehicles' (the second batch of 2020). Among them, BYD Han EV/DM models equipped with 'blade batteries' are on the list. According to data, the 'blade battery' on this model uses a lithium iron phosphate system. Although the system energy density is only 140wh/kg, the NEDC cruising range can reach up to 605km. At present, with the breakthrough of domestic BYD blade battery and CTP technology of CATL, the energy density of lithium iron phosphate has been greatly increased. The energy density of lithium iron phosphate batteries using the latest technology has reached 200Wh/kg, which is even close to that of some ternary lithium batteries. So, can lithium iron phosphate batteries achieve a 'counterattack' in the future? The new type of lithium iron phosphate battery is 'coming menacingly' In January 2020, BYD announced that its super lithium iron phosphate battery-the 'blade battery' is about to be mass-produced. This battery has improved energy density to a certain extent and reduced production costs. , And can even compete with ternary lithium batteries. As the first BYD Han EV/DM model equipped with a blade battery, NEDC has a cruising range of more than 600km and will be launched in mid-2020. It is understood that the 'blade battery' introduced by BYD is a kind of lithium iron phosphate battery, the difference is that the battery core is flattened design. According to BYD's patent, the length of the 'blade battery' can reach 2500mm, which is more than 10 times that of the traditional lithium iron phosphate battery. According to data released by the State Intellectual Property Office, BYD’s “blade battery” can increase the volumetric specific energy density of ordinary battery packs from 251Wh/L to 332Wh/L, and because the manufacturing process is simpler, it also reduces production costs. In fact, BYD is not the only one who is watching lithium iron phosphate batteries. Recently, news has pointed out that Tesla will use cobalt-free batteries on the domestic Model 3, and lithium iron phosphate batteries are a kind of cobalt-free batteries, which is even more promising; in addition, Guoxuan, which has been devoted to the development of lithium iron phosphate batteries before Gaoke also recently announced in a high profile that the energy density of its lithium iron phosphate battery using the latest technology can reach 200Wh/kg in the test phase. 'By adding special additives in the preparation process of the cathode material, while optimizing the carbon source and particle size matching, the carbon coating, crystallinity, and compactness of the material are improved, thereby increasing the material capacity and compaction density, and at the same time optimizing the battery chemical system. And through the improvement of the PACK process technology and the optimization of the battery pack design, the energy density of the lithium iron phosphate battery has exceeded 200Wh/kg in the experimental stage.' Guoxuan High-tech said.