Three packaging forms of customized lithium batteries

Customization of the three packaging forms of lithium batteries The customization of lithium batteries is not only reflected in the specifications and dimensions, but also in the shape of the packaging. The shape of the package refers to the material and state of the lithium battery assembly. At present, the important packaging forms of lithium batteries on the market are square, cylindrical and flexible packaging. Both the square and the cylinder are encapsulated by hard metal material steel shell raw materials, and the raw material for soft package outsourcing is mainly aluminum plastic film. Regarding customized lithium battery assembly shapes, different packaging shapes have different advantages and disadvantages. Square lithium batteries, equipped with a hard steel and metal casing, have high hardness, which means they are completely safe. The disadvantage is that prismatic lithium batteries can be customized according to their own needs, and the manufacturing process structure is simple. There are many types and varieties of products on the market, and it is difficult to unify the process. Cylindrical lithium battery, compared with the other two shapes, the cylindrical process is the most complex, lowest cost, highest yield, and suitable for all aspects of the combination. The disadvantage is that the weight is large, and the energy density of the lithium battery in the outsourcing state is relatively low. Due to the flexibility of the outer casing, the flexible lithium battery has high flexibility in appearance, light weight, and large capacity. The disadvantage is that the cost is high, and the cost of custom lithium batteries is not high. Lithium iron phosphate batteries are one step ahead of lithium ternary batteries, and the energy density of lithium ternary batteries is lower than that of lithium ternary batteries. But in terms of safety, lithium iron phosphate batteries are much higher than ternary lithium batteries. From the data on the positive and negative electrodes they used, it can be seen that the decomposition temperature of lithium iron phosphate batteries is around 700°C, while the decomposition temperature of ternary lithium batteries is only around 200°C. Higher heat resistance also means higher safety, and the application of AGV power lithium-ion batteries requires very high safety performance. There are not only differences in safety and energy density, but also differences in temperature adaptability and charge and discharge frequency. At high temperatures, the two lithium batteries are not much different, but the ternary lithium battery is better at low temperatures. Charging and discharging power is also an important part of power lithium battery. As a high-tech product, ternary lithium battery is better than lithium iron phosphate battery. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.