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SINO TECHNOLOGY

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 .

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SUNBEAM

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

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GREEN POWER

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

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DATAPOWER

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.

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SEONG-HEE

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

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STD

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.

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Sino Technology Manufacturer Group co.,ltd

18650 lithium ion battery 3.7v

Model: 18650

Capacity: 2600mAh

Discharge rate: Continuous 3C, Instantaneous 5C

Pole ear: Monopole ear with PTC

Internal resistance: <60mΩ

Minimum capacity: 2550mAh

Discharge cut-off voltage: 3.6V

Cell weight: 45g

Application:

Ebike, scooters, solar panel, power storage, flashlight, power tools, medical equipment, motorcycle, digital products etc.

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　　8650 lithium battery production process two: assembly

　　The sorted positive and negative electrodes will be fully automatic packaged here, and the white material is the diaphragm. The 18650 lithium battery can't work normally. It needs to add electrolyte as a medium to allow the positive and negative electrodes to undergo a chemical reaction, so that lithium ions can migrate between the positive and negative electrodes, and the lithium battery can be charged and discharged by generating charged ions and outputting energy. After the automatic roll is wrapped, it rolls directly on the assembly line, and enters the next assembly step to be loaded into the steel shell.

　　The steel shell is stamped and formed in one piece, and the thickness is less than 1mm. Therefore, the requirements for the strength and quality of steel are very high. This 18650 lithium battery factory uses imported Korean steel materials.

　　18650 lithium battery production process three: the first charge and test

　　After the electrolyte is injected into the 18650 lithium battery, it is not actually charged, and the state of the surface of the positive and negative electrodes is not stable at this time. It must be charged for the first time before it can be used normally. This first charge is called formation. When charging for the first time, additional electricity needs to be charged to form a protective film on the electrode surface. This protective film is the secret of the low self-discharge of lithium-ion batteries. At the same time, the properties of the protective film also affect the performance and life of the battery. Therefore, the chemical formation process is very important. Formation is done using subcontainers.