What is the difference between aluminum shell lithium battery and soft pack lithium battery?

Aluminum shell lithium battery: The battery is packaged in aluminum shell, using laser sealing technology, fully sealed, aluminum shell technology has been very mature, and the material technology, such as inflation rate, expansion rate and other indicators, do not require high. Lithium battery aluminum shell is a battery shell made of aluminum alloy material, which is mainly used in square lithium battery. The reason why lithium battery is packaged in aluminum shell is its light weight and safer than steel shell. The aluminum shell of lithium battery is designed with square and rounded corners. The material of the aluminum shell is generally aluminum-manganese alloy. The important alloy components it contains are Mn, Cu, Mg, Si, Fe, etc. These five alloys are used in the aluminum shell of lithium battery. For example, Cu and Mg can improve strength and hardness, Mn can improve corrosion resistance, Si can enhance the heat treatment effect of magnesium-containing aluminum alloys, and Fe can improve high-temperature strength. What are the differences between aluminum shell lithium battery and soft pack lithium battery? In areas with higher consumption levels, such as European and American countries, the use of soft-packed lithium battery packs has advantages. In most developing countries, such as India and the Middle East, aluminum shell batteries have obvious advantages. The overlap of application areas is reflected in the high-end smartphone market with the largest application volume. The soft-pack lithium battery represented by Apple and the aluminum shell battery represented by Samsung are used as examples. The usage of the two is basically half. Among them, Samsung mobile phones generally use a large size of 4.8 inches, with an average battery capacity of about 2700mAh, while the average battery capacity of Apple mobile phones is about 1700mAh. There are no technical barriers in the industry, and soft-pack lithium battery packs currently have many technical problems to be solved, especially in terms of battery cycle expansion indicators, which most battery cell factories have not yet solved. The manufacturing automation of aluminum shell batteries is higher than that of soft-pack lithium batteries. Therefore, the impact of human factors on product consistency is reduced to a certain extent, and labor costs are saved at the same time. In terms of manufacturing costs, aluminum shell lithium battery materials have been fully localized, while aluminum plastic film materials for soft pack lithium batteries still need to be imported, and aluminum shell batteries have lower battery material technical requirements than soft pack lithium batteries. Therefore, under the same capacity, the overall material cost is about 10% lower than that of soft-pack lithium batteries. In addition, the finished product is simple, reliable, and has obvious cost advantages. The mass and energy density of soft-packed lithium batteries is higher than that of aluminum-shell batteries. For batteries of the same size, soft-packed lithium batteries are about 10%-20% lighter than aluminum-shell batteries. On the one hand, mid-to-high-end electronic consumer products are becoming thinner, thinner, and more integrated and portable, which in turn increases the demand for battery energy density and product appearance. With the gradual increase in technology maturity, soft-pack lithium batteries have the potential to replace aluminum shell batteries. The advantages will be further highlighted. 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: Why do smart phones use lithium batteries? What are its advantages?