Lithium Battery 3.7V Lithium Polymer Battery 3.2V LifePo4 Battery 1.2V Ni-MH Battery Button Coin Battery
3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-09-24 Hits: Popular:AG11 battery
Briefly describe the basic process of dry single-drawing process for button battery 2032 separators
Dry single-drawing process process for lithium-ion battery separators
Feeding: PE or PP and additives and other raw materials are pre-treated according to the formula and transported to the extrusion system.
Casting: The pre-treated raw materials are melted and plasticized in the extrusion system and then extruded from the die head. The melt is cast to form a base film with a specific crystal structure.
Heat treatment: The base film is heat-treated to obtain a hard elastic film.
Stretching: The hard elastic film is cold-stretched and hot-stretched to form a nanoporous film.
Slitting: The nanoporous film is cut into finished films according to the customer's specifications.
Wet asynchronous stretching process
Feeding: PE, pore-forming agent and other raw materials are pre-treated according to the formula and transported to the extrusion system.
Casting: The pre-treated raw materials are melted and plasticized in the twin-screw extrusion system and then extruded from the die head. The melt is cast to form a cast thick sheet containing a pore-forming agent.
Longitudinal stretching: The cast thick sheet is longitudinally stretched.
Transverse stretching: The thick film after longitudinal stretching is stretched transversely to obtain a base film containing a pore-forming agent.
Extraction: The base film is extracted by solvent to form a base film without a pore-forming agent.
Shaping: The base film without a pore-forming agent is dried and shaped to obtain a nanoporous membrane.
Cutting: The nanoporous membrane is cut into finished membranes according to the customer's specifications.
The performance of the diaphragm product is affected by the base material and the manufacturing process. The stability, consistency and safety of the diaphragm have a decisive influence on the discharge rate, energy density, cycle life and safety of the lithium-ion battery. From the perspective of product strength, the comprehensive performance of the wet diaphragm is stronger than that of the dry diaphragm.
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