Important different contests for cylindrical, square and soft-pack lithium-ion batteries

1. Battery shape: The square lithium-ion battery can be any size, so it cannot be compared with a cylindrical battery. 2. Rate characteristics: Cylindrical lithium-ion battery welding multi-electrode is limited by the process, so the rate characteristics are slightly worse than square multi-electrode. 3. Discharge platform: The positive electrode material, negative electrode material and electrolyte are recovered and communicated, so theoretically discharge platform It is the same, but the internal resistance of the square battery is slightly dominant, so the discharge platform is slightly higher. 4. Product quality: Cylindrical lithium-ion battery technology is very mature, the probability of common secondary slitting defects of pole piece is low, and the winding process is higher than the maturity and automation level of the lamination process. The lamination process is still being recycled and semi-manual. Method, so there is an unlucky influence on the quality of the battery. 5. Tab welding: The tabs of cylindrical lithium-ion batteries are easier to weld than square lithium-ion batteries, and square batteries are prone to false welding that affects battery quality. 6. PACK into groups: round batteries are relatively easier to use, so the PACK method is simple, and the heat dissipation results are good. The heat dissipation problem must be handled when the square batteries are PACK. 7. Layout features: The chemical activity of the square battery is poor, and the performance of the battery is obviously decreased when used for a long time. In short, whether cylindrical, square or soft pack batteries, the reason why they are able to grow rapidly today is because they have been well used in their respective application scales. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Comparing lithium-ion batteries and lead-acid batteries, which is more secure and not easy to explode?