About the energy density comparison of lithium iron phosphate batteries and ternary lithium batteries

The energy density of lithium iron phosphate batteries is far less than that of ternary lithium batteries, but its safety is generally considered to be better than that of ternary lithium batteries. Let me talk about energy density first. At present, the subsidy standard for new energy vehicles depends on the energy density of the battery system. The detailed policy is that when the energy density of the battery system exceeds 120Wh/kg, you can enjoy 1.1 times the subsidy, which is between 90Wh/ Only 1 times subsidy can be enjoyed between kg and 120Wh/kg. It is known that it is not difficult for the current lithium iron phosphate batteries on the market to achieve 90Wh/kg after improvement, but there are very few companies that can achieve 120Wh/kg. BYD has always been focusing on lithium iron phosphate batteries, and this technology is at the leading level in China. Previously, there were rumors that BYD had developed high-energy density lithium iron phosphate batteries with a capacity density of 150Wh/kg, which is comparable to ternary lithium The battery is almost equivalent. In addition, it can be seen from the production plans of several power lithium-ion batteries in 2017 that the production expansion of ternary lithium batteries is particularly clear. Even BYD, a company that loved lithium iron phosphate batteries in the past, maintained it in 2017. The output of lithium iron phosphate remained unchanged, and the ternary lithium battery was expanded. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete it. Previous: What are the signs of battery problems before they occur?