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:2024-04-02 Hits: Popular:AG11 battery
What is the production process of CR2032 battery separators? What are the process flows of CR2032 battery separators?
Lithium iron battery separator production process
The production process of lithium iron battery separators is mainly divided into dry stretching and wet stretching. The many characteristics that CR2032 battery separators need to possess put forward special requirements for its production process, which includes raw material formula and rapid formula adjustment, micropore preparation technology, and independent design of complete sets of equipment.
The dry uniaxial stretching process is a method of producing hard elastic fibers to prepare highly oriented polypropylene or polyethylene films with low crystallinity. During the high-temperature annealing process, a film with high crystallinity is obtained. This film is first stretched at low temperatures to form micro-defects, and then at high temperatures the defects are pulled apart to form micropores. At present, more than one-third of China's production capacity uses the dry double drawing process, and its products occupy a large proportion of the mid- to low-end market.
Wet production process, also known as phase separation method or thermal phase separation method, wet process mixes liquid hydrocarbons or some small molecular substances with polyolefin resin. After heating and melting, a uniform mixture is formed, and then the temperature is cooled for phase separation and pressing. The membrane is obtained, and then the membrane is heated to a temperature close to the melting point, biaxially stretched to orient the molecular chains, and finally kept warm for a certain period of time. The residual solvent is eluted with volatile substances to prepare interconnected microporous membrane materials.
CR2032 battery separator dry single drawing process flow
Feeding: After preprocessing raw materials such as PE or PP and additives according to the formula, they are transported to the extrusion system.
Casting: The pretreated raw materials are melted and plasticized in the extrusion system and then the melt is extruded from the die. The melt forms a base film with a specific crystal structure after casting.
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 nano-porous film.
Slitting: Cut the nano-microporous membrane into finished membranes according to customer specifications.
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