What are the advantages and disadvantages of soft-pack lithium batteries?

Advantages of soft-pack lithium batteries 1) Good safety The soft-pack lithium batteries are structured with aluminum-plastic film packaging. In the case of potential safety hazards, the soft-pack lithium batteries are generally vented first, or cracked from the seal to release energy, and Metal shell batteries are more likely to explode due to large internal pressure. 2) The weight of the high specific energy soft pack lithium battery is 40% lighter than the steel shell battery of the same capacity, and 20% lighter than the aluminum shell battery, so it has a higher mass specific energy; the soft pack lithium battery is compared with the steel shell battery of the same size The capacity is 10-15% higher, which is 5-10% higher than that of the aluminum shell battery, and the volume specific energy is also relatively high. 3) Good electrochemical performance and long life The soft-pack lithium battery has a small internal resistance, which can greatly reduce the self-consumption of the battery; in addition, the soft-pack lithium battery has a longer cycle life. The shortcomings of soft-packed lithium batteries 1) Standardization and cost issues. Since soft-packed lithium batteries have a large number of models, the degree of automation in the middle and rear sections is not as good as that of the cylindrical battery processing line, which makes the soft-packed batteries impossible to achieve Large-scale processing results in low processing efficiency and high cost. 2) High-end aluminum-plastic film is heavily dependent on imports. At present, the high-end aluminum-plastic film used in domestic soft-pack power lithium-ion batteries still relies on imports, resulting in the high cost of soft-pack lithium batteries. One of the key factors for large-scale applications in the field of electric vehicles. 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 improve the safety of batteries?