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:2023-10-13 Hits: Popular:AG11 battery
(1)Baking
Bake for 12 hours at a constant temperature and vacuum of -0.09MPa. The main purpose is to dry out the moisture in the battery core.
(2)Injection
Low temperature lithium iron phosphate battery 3.2V 20A -20℃ charging, -40℃ 3C discharge capacity ≥70%
Charging temperature: -20~45℃ -Discharge temperature: -40~+55℃ -40℃ Support maximum discharge rate: 3C -40℃ 3C discharge capacity retention rate ≥70%
Inject electrolyte into the vacuum-baked battery core in a glove box filled with Ar gas. The amount of liquid injected varies according to the design of the lithium-ion battery pack. The battery must be weighed before and after injection. The weight difference is the amount of liquid injected. Use this to determine whether the injection volume is appropriate.
(3) Welding electrode tabs Weld the positive electrode tab (aluminum bar) and the negative electrode tab (nickel bar) to the scraper positions of the positive and negative electrode sheets using an ultrasonic welding machine. Pay attention to prevent welding deviation, welding misalignment, and false welding.
(4) Bottom welding. First put the insulating gasket into the steel case, then put the wound battery core into the steel case, and use a spot welder to weld the negative electrode lug to the bottom of the steel case. Check the outer surface of the bottom of the steel shell to find out the 18650 lithium-ion battery packs with weak spot welding such as yellow spots, black spots, defects, and fire.
(5)Sealing
First use a spot welder to spot weld the steel shell and cap of the 18650 lithium-ion battery pack, and then use a laser welder to continue laser welding. Laser welding should ensure accurate positioning and clean parts to be welded. It is strictly forbidden to cause deformation or damage to the battery. Post-welding inspections should be carried out to repair welding of defective batteries with welding holes, explosions, etc.
Low temperature and high energy density 18650 3350mAh-40℃ 0.5C discharge capacity ≥60%
Charging temperature: 0~45℃ Discharge temperature: -40~+55℃ Specific energy: 240Wh/kg -40℃ Discharge capacity retention rate: 0.5C Discharge capacity ≥ 60%
Click for details
(6) Winding
Place the ion exchange membrane flushly on the winding needle, and the front end extends out of the winding needle 2-5mm. There should be no wrinkles in the four corners of the pole piece. The pole piece should not fall off, the tape should be applied at an angle, the single-sided tape is too long, and the double-sided tape should not be Defects such as the left and right misalignment of the tape, the tape not covering the solder joints, etc. The positive electrode material must hug the negative electrode material, the pole piece cannot be rolled sideways, and the front end of the pole piece must be inserted to the top.
Read recommendations:
Power battery manufacturer explanation of the working principle of battery charger.801620 polymer ba
What are the factors that affect the low-temperature performance of lithium-ion batteries
Last article:18650 lithium ion battery 3.7v.Introduction to the production process of 18650 lithium battery pack
Next article:18650 li ion rechargeable battery.18650 lithium-ion battery pack production process
Popular recommendation
residential energy storage battery wholesale
2023-05-1018650 battery 3.7v 6000mah
2023-03-22Nickel Hydride No. 5 batteries
2023-03-22602248 battery manufacturer
2023-03-22AAA NiMH batteries manufacture
2023-03-22Plastic pet muzzle
2022-09-22Oval bangs sticker
2022-09-22Home energy storage battery FBC-HS03
2022-11-04801752 720mAh 3.7V
2022-06-27Lithium Battery LQ12-06
2022-08-1918650 2400mAh 3.7V
2022-08-19Rack-mounted energy storage battery GN-5120
2022-09-27Coin Battery CR 2025
2022-09-27601248 300mAh 3.7V
2022-08-19Lithium Battery GN4830
2022-08-1918650 2200mah battery
2023-06-2518650 battery 2600mah
2023-06-2518650 battery pack wholesaler
2023-06-25Ni-MH batteries
2023-06-25button battery 2032
2023-06-25Can lithium ion battery pack be used in high/low temperature environment.solar energy storage lifepo
2023-03-24AG7 battery.What is the difference between soft pack lithium-ion batteries and hard pack lithium-ion
2023-11-09How to store lithium batteries when not in use for a long time
2024-05-08Polymer lithium battery and lithium battery difference
2024-03-15batteries aaa.Technical characteristics of lithium titanate batteries
2024-01-09How to understand the safety issues of polymer batteries?48v lithium golf cart battery
2023-09-09How to set the ratio of positive and negative electrodes for lithium batteries?AG10 battery
2023-08-24What are the differences between power lithium battery and ordinary lithium battery?
2022-11-18What is the difference between energy storage battery and power battery
2022-11-09What are the power batteries?connector for energy storage battery Vendor
2023-05-11