What is the difference between soft pack lithium battery and hard pack lithium battery

Generally, a soft-coated lithium battery is a polymer shell on a liquid lithium battery. In the structure, the aluminum-plastic film packaging is used, and the flexible packaging battery will only crack at most when a safety risk occurs. Advantages of soft-pack batteries 1. Safe and light-weight soft-pack batteries, instead of exploding like steel shell and aluminum shell core. The weight of the soft-packaged battery is 40% lighter than the steel shell lithium battery of the same capacity, and 20% lighter than the aluminum shell battery. 2. The capacity of a large-capacity soft pack battery is 10% to 15% higher than that of a steel shell battery of the same size, and 5% to 10% higher than that of an aluminum shell battery. 3. Small internal resistance The internal resistance of soft-packaged batteries is less than that of lithium batteries. At present, the internal resistance of domestic soft-packaged batteries can be less than 35m, which greatly reduces the power consumption of the battery. 4. The design is flexible, and the shape of the flexible packaging battery can be customized according to the customer's needs, and a new type of core battery can be developed. Disadvantages of soft-pack batteries The existing soft-pack batteries have fewer core molds and cannot meet market demand; it is expensive to develop new models. During the charging and discharging of the lithium battery, the lithium ions are in a state of movement from the positive electrode to the negative electrode to the positive electrode. If we compare the lithium battery with the rocking chair, the two ends of the rocking chair are the two poles of the battery, and the lithium ion is like an excellent athlete running back and forth on both ends of the rocking chair. Therefore, experts gave lithium batteries a lovely name, rocking chair batteries. Likewise, when the battery is discharged (ie, the process of using the battery), the lithium ions embedded in the carbon layer of the negative electrode are released and move back to the positive electrode. The more lithium ions return to the cathode, the greater the discharge capacity. The battery capacity we usually call refers to the discharge capacity. The soft-coated lithium battery is the polymer casing on the liquid lithium battery. The aluminum-plastic film packaging is used in the structure, and the flexible packaging battery will only crack at most when a safety risk occurs. 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: What are the uses of lithium batteries?