What are the requirements for lithium battery separators?

Requirements for lithium battery separator 1. It has electronic insulation to ensure the mechanical separation of the positive and negative electrodes. 2. It has a certain pore size and porosity to ensure low resistance and high ionic conductivity, and has good permeability to lithium ions. 3. Since the solvent of the electrolyte is a strong polar organic compound, the diaphragm must be resistant to corrosion by the electrolyte and have sufficient chemical and electrochemical stability. Fourth, it has good wettability to the electrolyte and has sufficient liquid absorption and moisturizing ability. 5. It has sufficient mechanical properties, including puncture strength, tensile strength, etc., but the thickness is as small as possible. 6. Good spatial stability and smoothness. 7. Good thermal stability and automatic shutdown protection performance. Power lithium batteries have higher requirements for separators, and composite membranes are usually used. Development Trend of Lithium Iron Phosphate Battery Separator Industry ●The future direction of the lithium iron phosphate battery separator industry is broad and the development potential is huge. At present, the low-end products of the industry have entered a competitive stage, the company's profits are becoming more and more equal, and industry integration and market segmentation are about to be completed . In the future, the overall product price of the lithium iron phosphate battery separator industry will further decline, and more product innovations will meet the different needs of downstream industries. ●With the advancement of technology and the development of society, safety issues will inevitably receive more and more attention from the society. In the process of charging and discharging, the high temperature resistant composite diaphragm that can maintain the integrity of the diaphragm after a large area of u200bu200bpositive and negative Favor of the market. In order to improve the safety of lithium iron phosphate batteries, coating nanomaterials such as ceramics on polyolefin separators or adopting new matrix materials has become a future technology development trend. 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 article: What is a lithium polymer battery? What are its characteristics?