What are the important uses of lithium battery separators?

Research and development of lithium battery separators. Lithium batteries have the advantages of high specific energy, long cycle life, no memory effect, safety and reliability, and fast charge and discharge. They have become a new hot spot in power technology research in recent years and can be widely used in portable electronic products such Rechargeable batteries for mobile phones, laptops, cameras, and other electric vehicles and hybrid vehicles can also use the required power supply. Lithium batteries are mainly composed of positive and negative electrode materials, electrolytes and separators. There are membrane materials between the positive and negative electrodes of lithium batteries, which are usually called As a separator, it is an important component of the important purpose of the lithium battery separator: (1) Isolate the positive electrode and the negative electrode, so that the electrons in the battery cannot pass freely; analyze the research and development progress of lithium battery separator materials, and focus on the analysis The pore structure, porosity and self-sealing properties of olefin lithium battery separator materials are prepared. 1 Lithium battery separator material polyethylene and polypropylene microporous membranes have high porosity, low resistance, high tensile strength, acid and alkali resistance, good elasticity and aprotic solvent performance. Therefore, early lithium battery development and use it As a separator material until now, the commercialization of lithium battery separator materials is still more important than polyethylene polypropylene microporous membrane. Polyethylene polypropylene membrane, however, has the disadvantage of poor electrolyte affinity. In this regard, many scholars have done a lot of modification work, such as grafting hydrophilic monomers on the surface of polyethylene and polypropylene microporous membranes or changing others. Organic solvent electrolyte lithium battery separator and other materials, such as: IKubayashi and so on. Studies have found that the cellulose composite membrane material has the conductivity and mechanical strength of lithium ions, and has good performance, which can be used as a lithium battery separator material. 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: Lithium battery characteristics and technology introduction