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
18650 lithium battery pack design process skills 1. Adopt the principle of giving priority to easy operation, that is, easy operation by employees. 2. Adopt the principle of giving priority to operational safety, that is, employees are not prone to short circuits or have better preventive measures when operating. 3. Adopt the equipment principle, that is, use assistance
18650 lithium-ion battery pack design process skills
1. Adopt the principle of giving priority to easy operation, that is, easy operation by employees.
2. Adopt the principle of giving priority to operational safety, that is, employees are not prone to short circuits or have better preventive measures when operating.
3. Adopt the equipment principle, that is, use auxiliary equipment to complete the work without manual labor as much as possible, at least semi-automatically.
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%
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4. The packaging design must be reasonable, easy to take and put away, and the product should not be left out for a long time after the product is delivered to the customer.
18650 lithium-ion battery pack process quality characteristics
1. Use lithium-ion batteries with acceptable quality. Qualified and stable suppliers must supply single cells with good performance. The single cells must undergo a series of safety inspections and performance inspections and be used after passing the standards.
2. The battery is required to have low internal resistance and good consistency. Whether it is a 14.8V lithium-ion battery pack or other energy storage battery pack, low internal resistance must be ensured to ensure the capacity, platform, and heat dissipation of large current discharge.
3. The battery structure adopts a ventilation design, and a spacing of no less than 2mm should be maintained between two adjacent batteries. This structure requires the battery to be fixed with a plastic bracket.
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%
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4. The PACK battery factory uses slotted nickel sheets for spot welding. The size of the nickel sheets meets the requirements for large current discharge. The nickel sheet material ensures low internal resistance. The spot welding machine ensures stable operation. The welding needles ensure quality. The operator has been trained and assessed and qualified. After starting the operation, test whether the solder joints are firm after spot welding. In addition, each batch of products undergoes a vibration test to verify the anti-vibration performance.
5. Different batches of batteries are made into typical finished products and life tests are conducted. When the experience related to the lithium-ion battery PACK design specifications is summarized, the actual cycle life of the battery products is obtained through cycle detection.
6. Verify the high and low temperature performance of the battery. The cells of different PACK lithium-ion battery manufacturers are made into finished products and discharged at different rates under high and low temperatures to detect the actual discharge curve.
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