What are the development directions of lithium battery separators?

The development trend of lithium battery separators ●The film thickness of digital lithium battery separators is getting thinner and thinner; the thickness of power lithium ion battery separators reaches 40μm. ●Battery structure The polymer electrolyte solid-state battery has the dual purpose of electrolyte and diaphragm, and will be used as a key use in mobile devices in the future; the diaphragm material is polyvinylidene fluoride-hexafluoropropylene. ●Multilayer film combines the characteristics of high melting temperature of dry film and low closed cell temperature of wet film; PP/PE double layer and PP/PE/PP3 layer diaphragm. ●Improve the grafting of hydrophilic monomers on the surface of the membrane or change the organic solvent in the electrolyte to improve the affinity of the PE and PP separators to the electrolyte; carry out PVDF coating surface treatment to increase the strength of the membrane and reduce the thickness of the membrane. High-porosity nanofiber membrane, spray nanowires on the electrospun fabric; Separion membrane, composite Al2O3 or other inorganic substances on the cellulose non-woven fabric to improve thermal stability. 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 maintenance methods for UPS batteries?