Analysis of the advantages and disadvantages of the square, cylindrical and soft packs of lithium iron batteries

Advantages and disadvantages of square, cylindrical and soft packs of iron-lithium batteries ●Advantages of cylindrical iron-lithium batteries: cylindrical iron-lithium batteries are the earliest mature industrialized lithium battery products. After more than 20 years of development, cylindrical lithium batteries are now processed The technology is mature, the processing efficiency is high, and the cost is relatively low, so the cost of PACK is relatively low. The yield of lithium batteries is higher than that of square lithium batteries and soft-pack lithium batteries, and its consistency and safety are also relatively good. Disadvantages: Because the cylindrical iron-lithium battery is generally packaged in a steel shell, although the safety is relatively high, the weight will also be heavier, which will also make the specific energy of the lithium battery pack relatively low. ●Advantages of prismatic lithium iron batteries: the packaging shells of prismatic lithium iron batteries are mostly made of aluminum alloy and stainless steel. The inside of the battery adopts a winding or laminated process, and the protection of the battery core is better than that of the soft pack lithium battery. Compared with the cylindrical lithium battery, the safety of the battery cell is also greatly improved. Disadvantages: Since the prismatic lithium iron battery pack can be customized according to the size of the product, it will also cause many different types of prismatic lithium batteries on the market. Too many different types of lithium batteries will make it difficult to unify the process, making the automation level not high, the monomers are quite different, and there may also be groups of square lithium battery packs that are far less than the life of a single lithium battery. ●Advantages of soft-pack lithium iron batteries: The soft-pack lithium iron batteries use polymer electrolytes and soft packaging materials, which are the most critical and technically difficult materials in soft-pack lithium batteries. The soft packaging material means that the soft pack lithium battery can also be customized according to the requirements of customers. Soft pack lithium batteries are not explosive like square lithium batteries and cylindrical lithium batteries, and they are lighter than other batteries. Disadvantages: Although the shape of the soft-packed iron-lithium battery can be customized according to the needs of customers, the existing soft-packed batteries have fewer models, which cannot meet the needs of the market, and the cost of developing new models is relatively high. In addition to the high development cost, the material cost of soft-pack lithium batteries is higher than that of cylindrical and square. The cost issue is the focus of soft-pack lithium battery companies to break through in the future. 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. Previous article: Why does the maximum capacity of the lithium battery decrease with the increase in the number of uses?