Analyze the difference between soft pack lithium battery and aluminum shell lithium battery

Soft pack lithium battery: The soft pack lithium battery pack is just a liquid lithium battery encapsulated in a polymer shell. The structure is filled with aluminum plastic film, and the mechanical strength of the soft lithium battery is not high. In the event of a safety accident such as an internal short circuit, the battery is easily charged and exhausted, reducing the risk of explosion. Once there is a safety hazard, the soft pack battery will explode at best. Aluminum-plated lithium battery: The aluminum shell of lithium battery is a battery shell made of aluminum alloy material. The aluminum shell is composed of the outer battery, hard shell, and soft shell. It is mainly used for square lithium batteries, which are packaged in aluminum because they are lighter and safer than steel. Aluminum-packed lithium batteries are the mainstream of liquid lithium batteries, and their applications involve almost all areas of lithium batteries. The difference between soft-packed lithium batteries and aluminum-packed lithium batteries ●The technology is mature, the aluminum shell technology is very mature, and the material technology (such as gas expansion rate, expansion rate, etc. indicators) is not high, and there is no technical barrier in the industry; currently There are still many technical problems to be solved in soft-pack lithium batteries, especially in terms of battery cycle expansion index. The manufacturing automation of aluminum batteries is higher than that of soft batteries of lithium batteries, so the impact of human factors on product consistency is reduced to a certain extent, and labor costs are saved at the same time. ●From the perspective of processing costs, aluminum-lithium battery materials are completely domestic, while aluminum plastic film materials for soft lithium battery assembly still have to be imported, and the technical requirements for aluminum shell battery materials are lower than soft lithium batteries. Therefore, under the same capacity, the total material cost is about 10% lower than that of soft lithium batteries. In addition, the finished product is simple and reliable, and the cost advantage is obvious. In addition, the finished product of the aluminum shell lithium battery is simple to produce, the lithium battery pack is reliable, and the cost advantage is obvious. ●Soft-packaged lithium batteries are mainly targeted at the mid-to-high-end market, and the profit rate per unit product is relatively high. Under the same capacity, the relative profit of aluminum-packed lithium batteries is higher than that of aluminum-packed lithium batteries, and the capital recovery cycle is short. Because aluminum shell batteries are prone to scale effects, product qualification rates and costs are easy to control, and they currently have considerable profits in their respective market areas. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete it.