What are the key characteristics of power lithium battery cathode materials

Different material systems have their own characteristics, and have their own application areas and market needs. 1. Lithium cobalt oxide has a higher share in the commercial power lithium-ion battery category because of its higher energy density and smaller battery volume. However, its high price and safety issues that are not resistant to high temperatures have been criticized. 2. The important factor of lithium iron phosphate is the current safety and cycle life of lithium iron phosphate. The important determining factor comes from the olivine structure of lithium iron phosphate. On the one hand, it leads to the lower ion diffusion ability of lithium iron phosphate, and on the other hand, it also has It has better high temperature stability and good cycle performance. 3. Lithium manganate battery has the characteristics of power performance, discharge rate performance, good low temperature performance, and high voltage frequency. Lithium manganate battery has the highest proportion of new energy buses in the recommended catalog, especially lithium manganate battery in logistics vehicles. The use of lithium has promoted the processing of domestic lithium manganate. 4. The ternary lithium cathode material combines the advantages of LiCoO2, LiNiO2 and LiMnO2, forming a synergistic effect inside the same cell, taking into account the three requirements of stability, activity and lower cost of the material structure. It is three types The one with the highest energy density in the positive electrode material. Its low temperature effect is also clearly better than lithium iron phosphate batteries. Power lithium battery cathode material is a key factor in determining the performance of electric vehicles. Electric vehicles require batteries with high specific energy, high specific power, low self-discharge, low price, long service life and good safety. The corresponding cathode materials should also meet the same requirements. The cathode material is the source of lithium ions in the battery, and its performance is directly related to the battery performance. It is the basis of the energy density of lithium batteries and the most critical functional material in lithium batteries. New energy has the ability to subvert traditional energy sources only if it has the advantages of compaction in energy density. It sets clear goals and requirements for the energy density and cost of power lithium batteries, and realizes the energy density of power lithium ion batteries under the premise of ensuring safety performance. Improvement and shorter charging time are the objective needs of consumers. Therefore, the optimization of the positive electrode material of power lithium batteries and the improvement of technology are critical and urgent. The safety issues of power lithium batteries have caused industry concerns, which have put forward higher requirements on the standards of cathode material research and development, technology, and processing. On the one hand, it is necessary to comprehensively improve the level of processing and intelligent manufacturing, improve product qualification rate and consistency, and control self-discharge problems caused by material magnetic substances, etc.; on the other hand, Ru0026D technology information and intelligence need to be further improved to improve Ru0026D effectiveness. Beware of detours. As a positive electrode material for power lithium batteries, it is difficult to be widely used in new energy vehicles and other fields. If it can deal with the problems of high temperature cycling and poor storage performance of lithium manganate, with its advantages of low cost and high rate performance, power lithium The use of batteries will have huge potential. 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: Product features and working principle analysis of lithium battery special winding machine