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:2024-01-10 Hits: Popular:AG11 battery
Soft-packed lithium iron phosphate battery assembly process and method. Whether in the digital or power application markets, soft-packed lithium iron phosphate battery packs are becoming a very important technical route. Soft-packed batteries are actually batteries that use aluminum-plastic packaging film as packaging material. The reason why soft-packed batteries can be thermally sealed is that they use aluminum-plastic packaging film.
Soft-packed lithium iron phosphate batteries are batteries in which a liquid lithium-ion battery is covered with a polymer shell. The structure is packaged with aluminum-plastic film. In the event of a safety hazard, the soft-packed battery will only bulge and crack at most, so The overall safety performance is high, but with the continuous development of the economy, people have also put forward higher requirements for soft-pack lithium battery packs. The existing lithium battery packs are complex to install and the process is cumbersome, and improvements need to be made.
Soft-packed lithium iron phosphate battery assembly process and method
Aluminum plastic film forming process
Soft-packed lithium iron phosphate batteries can be designed into different sizes according to customer needs. After the outer dimensions are designed, corresponding molds need to be opened to form the aluminum plastic film. Generally, single pit punching is chosen when the battery core is thin, and double pit punching is chosen when the battery core is thick, because too much deformation on one side will break through the deformation limit of the aluminum-plastic film and cause rupture.
Top and side sealing process
The top and side sealing process is the first packaging process of soft-packed lithium iron phosphate batteries. Top and side sealing actually includes two processes, top sealing and side sealing. First, place the wound core into the punched pit, and then fold the packaging film in half along the dotted line. The top seal is to seal the tabs, which are metal. After formation, some cells, especially thick cells, may undergo certain deformation due to large internal stress. Therefore, some factories will set up a fixture shaping process after formation, also called fixture baking.
After cutting the second seal of the air bag, you need to trim and fold the edges. This means cutting the first and second seal edges to the appropriate width, and then folding them to ensure that the width of the battery core does not exceed the standard. After folding, the battery cells can be put into the capacity classification cabinet for capacity classification. In fact, it is a capacity test to see if the capacity of the battery core has reached the specified minimum value. In principle, all batteries need to be tested for capacity before leaving the factory to ensure that batteries with unqualified capacity will not be sent to customers. However, when the battery cell production volume is large, some companies will perform partial capacity classification and use statistical probability to determine the qualification rate of the batch of battery cells.
In the process of resting, forming, and clamp shaping, after the liquid injection and sealing are completed, the battery core needs to be rested first. Depending on the process, it can be divided into high-temperature resting and room-temperature resting. The purpose of resting is to let the injected The electrolyte fully wets the pole piece. Then the battery core can be used to make chemical products.
After the capacity is divided, the cells with qualified capacity will enter the post-processing process, including appearance inspection, yellow glue application, edge voltage detection, tab transfer welding, etc. Several processes can be added or deleted according to customer needs. The last step is OQC inspection, and then packaging and shipping.
Note that this is still just the battery cell. The batteries will be sent to the Pack factory for further processing, including soldering circuit boards, packaging, etc. Downstream of the Pack factory are various user manufacturers, such as Apple, Lenovo, and Huawei. They will take the battery Pack and install it into the terminal, and then it will be in the hands of our consumers.
Soft package lithium iron phosphate battery process flow
Since the casing is made of aluminum-plastic film, its production process is different from the other two types of commercial batteries in some aspects. For example, the packaging process of aluminum plastic film, such as the shaping process during the formation process, etc.
For soft-packed lithium iron phosphate batteries, the aluminum-plastic film has a large deformation space, and unlike steel-cased aluminum-cased batteries, which will explode when thermal runaway occurs; the shell is a layer of aluminum-plastic film, which is light in weight and has a small proportion of inactive parts. , Soft-pack batteries are 40% lighter than steel-cased lithium batteries of the same capacity, and 20% lighter than aluminum-cased batteries.
Read recommendations:
18650 battery 3.7v 2000mah.Classification of 18650 lithium batteries
3.2v 230ah lifepo4 battery.The difference between ternary materials and lithium iron phosphate
Last article:18650 1800mah battery.UPS lithium battery production workshop requirements and production process pr
Next article:LR1130 battery.Lithium battery recycling technology and recycling status
Popular recommendation
601848 battery sales
2023-03-22Nickel Hydride Batteries direct sales
2023-03-22601248 lipo battery
2023-03-22lithium battery for energy storage manufacture
2023-05-1014250 battery direct sales
2023-03-22Colorful cup humidifier
2022-07-22Lithium-ion battery GN200 60000mAh
2022-08-19903242 2500MAH 3.7V
2023-06-10Coin Battery LR 1121
2022-10-15LR6
2022-08-19Coin Battery CR 2032
2022-09-27802540 800MAH 3.7V
2023-06-10Ni-MH AA1200mAh 1.2Va
2022-07-01802540 800mAh 3.7V
2022-08-1914500 850mAh 3.7V
2022-08-193.7 volt 18650 lithium battery
2023-06-25cr2032 3v lithium battery
2023-06-25AA Carbon battery
2023-06-25CR2354 battery
2023-06-25CR1616 battery
2023-06-25The correct charging method for lithium batteries
2024-08-14Mobile lithium battery.902030 polymer battery
2023-05-19What are the development prospects and trends of lithium batteries
2024-09-04Advantages and disadvantages of lithium battery
2022-11-16How to extend the service life of battery packs
2024-01-15Definition of cylindrical lithium battery
2022-12-12Lithium iron phosphate battery has these characteristics.solar energy storage battery 10kwh 48v 100a
2023-03-15Which is safer, ternary lithium battery or lithium iron phosphate battery?
2022-11-25Understanding the causes of inflation in soft pack lithium batteries
2023-09-08Phosphoric acid fuel cell.LR936 battery
2023-07-04