Advantages of lithium iron phosphate batteries and material decomposition

Advantages of lithium iron phosphate batteries 1. Longer service life. At present, most of the lithium ion batteries used in mobile power sources on the market have a cycle life of about 500-800 times, while lithium iron phosphate batteries have at least The service life is more than 2000 times, and its capacity can be maintained above 80%. 2. Wide operating temperature range Compared with other lithium-ion batteries, lithium iron phosphate batteries have a larger operating temperature range. They can work normally from -20°C to +75°C, and some have high temperature resistance characteristics. Lithium iron phosphate batteries can also work normally in the range of 350°C to 500°C. 3. The use of safe lithium iron phosphate completely solves the safety hazards of lithium cobalt oxide and lithium manganese oxide. Lithium cobalt oxide and lithium manganese oxide will explode in a strong collision and pose a threat to the life and safety of consumers, while lithium iron phosphate The most characteristic lithium-ion battery is that it will not explode even in the worst traffic accidents after rigorous safety testing. Analysis of Lithium Iron Phosphate Battery Materials Lithium iron phosphate is an important cathode material for lithium-ion batteries. Although the thermal stability and structural stability of lithium iron phosphate materials are the highest among all current cathode materials in terms of thermodynamics, And it has also been verified in the actual safety performance test, but in terms of the possibility and probability of the material and the internal short circuit of the battery, it may be the most unsafe. In terms of the preparation of lithium iron phosphate batteries, due to the small size of lithium iron phosphate nanoparticles, the specific surface area is relatively high, and due to the carbon coating process, the activated carbon with high specific surface area is very strong against gases such as moisture in the air. The adsorption use of the electrode leads to poor electrode processing performance and poor adhesion of the binder to its nanoparticles. No matter in the battery preparation process or in the battery charging and discharging cycle and storage, the nanoparticles are easy to detach from the electrode, causing the internal micro short circuit of the battery. 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: Analysis of the working principle of vanadium batteries