EV battery

Briefly describe the development direction of lithium battery cathode material technology

by：Vglory 2021-03-27

Lithium battery cathode materials should exert the best performance in the whole battery. Under the premise of optimizing the material composition, the crystal structure, particle structure and morphology of the material, particle surface chemistry, material packing density and compaction density should be further optimized. Chemical properties, while also strictly preventing the introduction of trace metal impurities in the process. The research and development focus of lithium battery cathode materials: high safety, low cost and high performance cathode materials. 1) Research and development progress of high energy density and safety of high nickel cathode (NCM or NCA) materials: high nickel and low cobalt are the development trend. Tesla power lithium-ion batteries currently use less than 3% of cobalt and will drop to 0% in the future. At the beginning of June 2018, Panasonic announced that it was developing cobalt-free electric vehicle batteries; 2) Research and application research on olivine structure LMnPO4, LMFP or hybrid materials; 3) Long-term stability research on lithium-rich lithium-rich manganese-based materials; 4) Now There are internal disclosures of the self-ignition phenomenon of the safety performance evaluation study of positive electrode materials after cycling; 5) Research on composite or mixed positive electrode materials that improve safety, reduce costs and maintain high comprehensive performance. 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 lithium battery fast charging circuit

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