What are the advantages of ceramic separators for lithium batteries?

Lithium battery ceramic diaphragm Lithium battery ceramic diaphragm performance requirements for alumina: 1. Average particle size, can be well bonded to the diaphragm, and will not block the diaphragm pore size. 2. Alumina has high purity and no impurities can be introduced, which will affect the internal environment of the battery. 3. The requirement of alumina crystal structure to ensure the compatibility and wettability of alumina to electrolyte. Advantages of coated high-purity oxide saw (VK-L30G) diaphragm: 1. High temperature resistance: Alumina coating has excellent high temperature resistance and can maintain the shape of the diaphragm above 180 degrees Celsius. 2. High safety: Alumina coating can neutralize free fields in the electrolyte, improve battery acid resistance and improve safety. 3. High rate performance: Nano alumina can form a solid solution in the bond cell to improve rate and cycle performance. 4. Good wettability: Nano alumina powder has good liquid absorption and liquid retention capabilities. 5. Magical self-shut-off characteristics: Keep the closed-cell characteristics of the polyolefin diaphragm, and guard against thermal runaway causing safety concerns. 6. Low self-discharge rate: Alumina coating has a new micropore tortuosity, and the self-discharge is lower than that of ordinary diaphragms. 7. Long cycle life: reduce the mechanical micro short circuit during the cycle, effectively improve the cycle life. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.