Technology introduction of lithium ion battery separator production line

Lithium-ion battery diaphragm production line technology Dry unidirectional stretching production line uses PP or PE as an important raw material, mixes various grades of auxiliary materials, fully stirs, extrudes through the casting method, and is multi-layered by a laminating machine and then unidirectionally drawn Stretching, and then using a layering machine and a slitting machine to layer and slit the stretched multilayer separator to produce a unidirectionally stretched lithium battery separator. Equipped with high-precision testing instruments, using the production process jointly developed with my country's famous scientific research institutions, it is important to produce lithium-ion battery separators with different specifications from 16μm to 40μm in thickness. The large-scale production of dry uniaxial stretching process lithium ion power lithium battery separators can simultaneously stretch more than multiple base films (total thickness of 250μm or more), which greatly improves production efficiency while greatly reducing production costs. This production line can produce films of different thicknesses and different layers, running smoothly, and all functions and performance indicators meet the technological requirements, which has won wide praise and praise from Cangzhou Pearl. The dry uniaxial stretching process lithium-ion battery separator production line has passed the acceptance. It is important to produce lithium-ion battery separators with a thickness of 12-60 microns and different specifications. The products are widely used in power lithium-ion batteries, energy storage lithium-ion batteries and digital lithium-ion battery. ●The dry biaxial stretching production line uses PP as an important raw material, mixed with various grades of auxiliary materials, fully stirred, extruded by the casting method, biaxially stretched, rewinded, and then slit to produce a biaxially stretched lithium battery separator. Equipped with high-precision testing equipment, using the production process jointly developed with my country's famous scientific research institutions, it is important to produce lithium-ion battery separators with different specifications from 12μm to 40μm in thickness. ●The wet biaxial stretching production line uses PE as an important raw material, mixes various grades of auxiliary materials, fully stirs, extrudes through the casting method, and then biaxially stretches, through the extraction process to form holes, and then undergoes transverse stretching before winding, Slitting to produce a wet biaxially stretched lithium battery separator. Equipped with high-precision testing equipment, using the production process jointly developed with my country's famous scientific research institutions, it is important to produce lithium-ion battery separators with different specifications from 8μm to 25μm in thickness. Wet-process lithium-ion battery separator biaxially stretched production line lithium-ion battery separator materials can be divided into: woven film, non-woven film (non-woven fabric), microporous film, composite film, diaphragm paper, laminated film, etc. Polyolefin materials have excellent mechanical properties, chemical stability and relatively inexpensive characteristics. Therefore, polyolefin microporous membranes such as polyethylene and polypropylene have been used as lithium-ion battery separators in the early stage of lithium-ion battery research and development. The wet synchronous biaxial stretching makes the membrane stretch in the vertical and horizontal directions at the same time, the micropores are close to circular, the resistance is minimal during the battery cycle, the lyophilicity and uniformity are good, and the performance stability of the lithium-ion battery produced by it is good. . We believe that this will be the future development direction of high-end lithium-ion battery separators. 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: Detailed explanation of lithium ion battery formation-aging process