Cylindrical lithium battery compared to the characteristics of square lithium battery

1. Battery shape: The square lithium battery can be of any size, so it is incomparable to a cylindrical battery. 2. Rate characteristics: Cylindrical lithium battery welding multi-electrode is limited by the process, so the rate characteristics are slightly worse than square multi-electrode methods. 3. Discharge platform: The same cathode material, anode material, and electrolyte are used, so theoretically the discharge platform is The same, but the internal resistance of the square battery has a slight advantage, so the discharge platform is slightly higher. 4. Product quality: Cylindrical lithium battery technology is very mature, the probability of common secondary slitting defects of the pole piece is low, and the winding process is more mature and automated than the lamination process. The lamination process is currently still using semi-manual methods. Therefore, there is an adverse effect on the quality of the battery. 5. Welding of tabs: The tabs of cylindrical lithium batteries are easier to weld than square lithium batteries, and square batteries are prone to false welding that affects battery quality. 6. PACK into groups: Round lithium batteries are relatively easier to use, so the PACK method is simple and the heat dissipation effect is good. The heat dissipation problem of square lithium batteries should be dealt with when PACK. 7. Structural features: The chemical activity at the corners of the square lithium battery is poor, and the performance of the lithium battery is significantly reduced after long-term use. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the differences between lead-acid batteries and iron-lithium batteries