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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:2024-04-23 Hits: Popular:AG11 battery
The main uses of 18650 battery lithium ion 2200mah separators:
The diaphragm is a key component of the 18650 battery lithium ion 2200mah and is located at the positive and negative centers of the rechargeable battery. The characteristics of the diaphragm constitute the structure, internal resistance, etc. of the battery, affecting the size, circulation and safety of the battery.
The requirements for separators for lithium batteries include:
(1) It has the dielectric strength of electronic devices to ensure the protection of positive and negative mechanical equipment;
(2) It has a certain diameter and pores to ensure the low resistance and high positive ion conductivity of the lithium-ion battery, which has sufficient organic chemical performance and photocatalytic reliability for the corrosion resistance of the lithium-ion battery electrolyte.
(4) The 18650 battery lithium ion 2200mah electrolyte has good wettability, strong moisture retention and water return performance;
(5) The reliability of structural mechanics is high, including compressive strength and tensile strength, but the thickness of the thin layer is as small as possible;
(6) Reliability and smoothness of indoor space;
(7) Good heat resistance and automatic shutdown maintenance;
(8) If the shrinkage rate is small, it will cause short circuit failure and the battery charging heat cannot be controlled. In addition, power lithium batteries generally use composite bags with higher separator adjustment.
Classification of lithium-ion battery diaphragms:
According to the different physical and chemical properties of lithium batteries, 18650 battery lithium ion 2200mah separators can be divided into: textile membranes, non-woven fabrics (non-woven fabrics), microporous membranes, composite bags, separator paper, rolled membranes, etc. Although there are various types, commercial lithium-ion battery separator materials are currently the key choices for high-voltage polyethylene and polypropylene microporous membranes.
18650 battery lithium ion 2200mah separator process
At this stage, the key production methods for 18650 battery lithium ion 2200mah diaphragms are wet and dry. Use wet separated phase chromatography or thermally induced phase chromatography to mix liquid hydrocarbons or small molecule water chemicals with polyolefin epoxy resin. After melting, a homogeneous compound is produced, which separates the pulse damper, suppresses the pulse damper, and links the molecular structure Heated to a temperature close to . In the dry process, polyolefin epoxy resin, extrusion and blown films are melted into a crystalline polymer plastic film, which is then crystallized into a solution and quenched to obtain a high-width ratio double-layer structure.
Wet and dry processing technology has advantages and disadvantages. Among them, the plastic film has small diameter, uniformity, thin film, large engineering investment, complex processing technology, large air pollution, dry processing technology is simple, high added value, green and environmentally friendly, but the diameter and porosity It is not easy to operate and the product cannot be made thin.
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