Explain the development trend of lithium battery separators

Digital lithium battery separators are getting thinner and thinner; power lithium-ion battery separators have a thickness of 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. The rise of the domestic lithium battery separator market has promoted the rapid rise in sales of lithium battery separator equipment. The lithium battery diaphragm equipment manufacturing industry is a non-standardized high-end equipment industry, and the performance of the equipment should be continuously improved and perfected according to the changes in customer processing technology and the progress of new materials and new technologies. With the improvement of the technical level of domestic lithium battery diaphragm equipment, the gap in product quality with imported equipment will be further narrowed. The cost-effective advantage of domestic equipment and the substitution effect of imported equipment will become more and more obvious. 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 post: Introduction to the precautions for charging lithium batteries and lead-acid batteries