Why does Tesla use cobalt-free batteries?

Lithium cobalt oxide is the industry's first lithium-ion battery to test the water, and was first used in Tesla's Roadster. However, it was later proved that the cycle life and safety of lithium cobalt oxide batteries were low, and they were not suitable for power lithium batteries. To make up for this shortcoming, Tesla had to adopt its best battery management system to ensure battery stability. In addition, another major disadvantage of lithium cobalt oxide batteries is that cobalt metal is expensive and resources are scarce, which will lead to higher overall battery costs. At present, the batteries used in all Tesla models are ternary lithium-ion batteries (NCA or NCM) produced by Panasonic. Similar to lithium cobalt oxide (LCO) batteries, ternary lithium-ion batteries contain cobalt and their production costs are also higher. After entering the Chinese market, if domestic Tesla continues to use ternary lithium-ion batteries, the price will be very low. If Tesla uses the lithium iron phosphate battery produced in the Ningde era, it will reduce the price of the domestic Model3. In fact, CATL has always produced lithium iron phosphate batteries. This type of battery is related to batteries containing cobalt. The most obvious advantage is that the production cost is relatively low. Compared with other cobalt-free batteries, lithium iron phosphate batteries are more likely to win Tesla's flop. The reasons include: 1. Lithium iron phosphate battery has the inherent advantages of high safety, long cycle life, low cost, and stable supply of upstream basic materials; 2. In terms of defects, its volume and weight energy density is relatively low, but with With blade/strip battery technology and CTP technology application, the energy density of iron-lithium batteries will be significantly improved. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the characteristics of a good quality lithium-ion battery charger?