What are the safety solutions for lithium batteries?

Lithium battery safety solutions address the many hidden safety hazards of lithium batteries in the material, manufacturing and use process. How to improve the parts that are prone to safety problems is a problem for lithium battery manufacturers to solve. 1. Improve the safety of the electrolyte. There is a high reaction activity between the electrolyte and the positive and negative electrodes, especially at high temperatures. In order to improve the safety of the battery, improving the safety of the electrolyte is one of the more effective methods . The potential safety hazards of electrolyte can be effectively solved by adding functional additives, using new lithium salts and using new solvents. 2. Improve the safety of electrode materials. Lithium iron phosphate and ternary composite materials are considered to be low-cost and high-safety cathode materials, which may be popularized in the electric vehicle industry. Regarding the positive electrode material, the common method to improve its safety is coating modification. For example, the surface coating of the positive electrode material with a metal oxide can prevent the direct contact between the positive electrode material and the electrolyte, inhibit the phase change of the positive electrode material, and improve Its structural stability reduces the disorder of cations in the crystal lattice to reduce heat generation by side reactions. 3. Improve battery safety protection design. In addition to improving the safety of battery materials, commercial lithium batteries adopt many safety protection measures, such as setting battery safety valves, thermal fuses, connecting components with positive temperature coefficients in series, using thermally sealed diaphragms, and loading Dedicated protection circuits, dedicated battery management systems, etc. are also means to enhance safety. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.