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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

li ion 18650 battery pack

Model: 18650

Capacity: 2500mAh

Discharge rate: Continuous 8C, Instantaneous 30A

Pole ear: Bipolar ear

Internal resistance: <18mΩ

Minimum capacity: 2450mAh

Discharge cut-off voltage: 2.5V

Cell weight: 45g

Application:

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

Product parameter

Product description

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　　18650 lithium-ion battery sealing technology precautions

　　The 18650 lithium battery is used as a round battery, and the sealing technology generally needs to pay attention to the following issues! First of all, the rolling groove is the key, because the consistent R position and size of each battery in the rolling groove will affect the consistency of the entire shape. Then when sealing, it should be sealed in place at one time, and the R position of the battery case rolling groove should be consistent with the lower mold when sealing, and the height of the sealing neck should be

　　The 18650 lithium battery is used as a round battery, and the sealing technology generally needs to pay attention to the following issues!

　　First of all, the rolling groove is the key, because the consistent R position and size of each battery in the rolling groove will affect the consistency of the entire shape.

　　Then, it should be sealed in place at one time when sealing, and the R position of the battery case rolling groove should be consistent with the lower mold when sealing, and the height of the sealing neck should be kept within 0.1mm. For the second time, the outer diameter of the seal should be reduced by 0.1mm.

　　Furthermore, special materials should be selected for the sealing mold and the mold should not be changed frequently. Both the seal and the roll groove must cooperate very well.

　　Low temperature lithium iron phosphate battery 3.2V 20A -20℃ charge, -40℃ 3C discharge capacity ≥70%

　　Charging temperature: -20~45℃ -Discharging temperature: -40~+55℃ -40℃ supports maximum discharge rate: 3C -40℃ 3C discharge capacity retention rate≥70%