What are the reasons why electric vehicles do not use polymer lithium batteries

The reason why it is best to use lithium batteries in electric vehicles instead of polymer batteries 1. Electric vehicles use high current, so there is no problem of swelling when lithium batteries are used in aluminum cans. Polymer lithium batteries use aluminum foil packages. Swelling problem 2. The product quality and stability of lithium battery processing and manufacturing is better than polymer lithium battery, so so far, polymer lithium battery is suitable for small current and does not need to be used in series and parallel 3. Polymer lithium battery is also made of batteries , But the plate formula, isolation membrane, electrolyte formula are not the same as the lithium battery cell. Polymer battery Disadvantages: 1. The battery cost is relatively high, and the electrolyte system construction and purification are difficult. 2. To protect the circuit control, overcharging or overcharging will cause serious damage to the interweaving of chemical substances inside the battery, which will seriously affect the life of the battery. 3. Low energy density: The general polymer battery capacity can reach about 2940mAh, so the energy density is about 500 Wh/L, while the energy density of polymer batteries is close to 600 Wh/L so far. . 4. The heat dissipation is relatively poor: the heat dissipation of the carbon layer is not too good than that of aluminum foil, so the belt speed and baking temperature need to be adjusted appropriately when coating. With the continuous progress of science and technology, the continuous development of polymer lithium batteries Development, progress and upgrading. The continuous advancement of polymer lithium battery technology and its use in emerging key markets (electric vehicles) have created a momentum for product research and development all over the world. Polymer lithium batteries are bound to be fully utilized in the field of electric vehicles and new energy. . So far, the lithium battery widely used in electric vehicles is lithium iron phosphate battery, which has excellent thermal stability and safety, and the price is relatively low. These factors make lithium iron phosphate batteries the preferred choice for small and medium-sized electric vehicles and plug-in hybrid lithium-ion batteries. 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 article: How to pack and how to distinguish between good and bad 18650 lithium battery packs?