-(3)Comparison and decomposition of technical characteristics of cylindrical, square, and soft pack lithium-ion batteries

(3)Comparison and decomposition of technical characteristics of cylindrical, square, and soft pack lithium-ion batteries
author:enerbyte source:本站 click320 Release date: 2023-09-18 08:59:07
abstract:
3. Discharge platform: The same positive electrode material, negative electrode material, and electrolyte are used, so theoretically the discharge platform is consistent. However, the internal resistance of the square battery is slightly higher, so the discharge platform is slightly higher....

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3. Discharge platform: The same positive electrode material, negative electrode material, and electrolyte are used, so theoretically the discharge platform is consistent. However, the internal resistance of the square battery is slightly higher, so the discharge platform is slightly higher.

4. Product quality: The cylindrical lithium-ion battery process is very mature, with a low probability of public secondary slitting defects in the electrode. Moreover, the winding process is more mature and automated than the lamination process, and the lamination process is still using semi manual methods. Therefore, there are adverse effects on the quality of the battery.

5. Pole ear welding: The pole ear of cylindrical lithium-ion batteries is easier to weld than square lithium-ion batteries, and square batteries are prone to false soldering that affects battery quality.

6. PACK in groups: Circular batteries have relatively easier to use characteristics, so the PACK method is simple and has good heat dissipation effect. When packing square batteries, it is necessary to handle the heat dissipation problem well.

7. Structural features: The chemical activity energy at the corners of the square battery is poor, and the performance of the battery decreases significantly after long-term use.

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