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:2024-09-24 Hits: Popular:AG11 battery
How to control the porosity of materials to balance compaction density and battery performance
1. Choosing appropriate raw materials and formulations: selecting positive electrode materials with appropriate true density and chemical composition, as well as appropriate amounts of conductive and bonding agents, all of which can affect porosity.
2. Optimizing particle size distribution: By adjusting the particle size distribution of the positive electrode material, particle stacking can be optimized to reduce the gaps between large particles, while retaining enough small particles to fill the gaps, thereby controlling porosity.
3. Adjusting compaction process: By changing the compaction pressure, speed, and temperature, the deformation and arrangement of material particles can be affected, thereby controlling the porosity of the polarizer.
4. Thickness and uniformity control of polarizer: During the coating and compaction process, maintain the uniformity of polarizer to avoid uneven porosity caused by inconsistent thickness.
5. Use appropriate adhesive: The type and amount of adhesive will affect the structure and porosity of the polarizer. Choosing the appropriate adhesive can improve the structural stability of the polarizer while reducing porosity.
6. Drying process of polarizer: Ensure that the polarizer is thoroughly removed of solvents and moisture during the drying process to avoid residual liquid in the pores affecting battery performance.
7. Post treatment of electrode plates, such as heat treatment or chemical treatment, can improve the structure of electrode plates, reduce porosity, and enhance the electrochemical performance of materials.
8. Avoid excessive compaction: Excessive compaction can cause particle breakage, increase internal resistance, and reduce battery performance. It is necessary to find a suitable compaction density to maintain the charging and discharging performance and cycling stability of the battery.
9. Use porosity testing methods such as mercury intrusion porosimetry, nitrogen adsorption, and liquid absorption to regularly measure the porosity of electrode plates to ensure they meet design requirements.
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