What is a square lithium battery? Why choose square lithium batteries?

What is a square lithium battery? Why choose square lithium batteries?

The outer shell of square hard shell lithium batteries is generally made of aluminum alloy profiles, 304 stainless steel and other raw and auxiliary materials. In the built-in process technology, winding or laminated process technology is selected, which has a much greater protective effect on the battery cells than aluminum-plastic film batteries (i.e. soft pack batteries). The safety performance of the battery cells has also been relatively improved compared to cylindrical lithium batteries. Square lithium iron phosphate battery pack generally refers to aluminum or steel shell square batteries. In China, the coverage of square batteries is very high. With the widespread use of automotive power lithium batteries in recent years, the difference in range and battery driving power between cars and electric vehicles has gradually expanded. Most Chinese power lithium battery manufacturers choose high-energy density aluminum shell square batteries, which play a dominant role.

The primary structural components include: a laminated or wound structure consisting of a hood, housing, positive and negative plates, and a separator, as well as insulation and safety components. The primary choice for square lithium batteries is aluminum shell, with high stainless steel plate as the cover, and equipped with explosion-proof valves and other accessories, so the overall accessories are light, safe and reliable, and have higher energy compared to others. Square lithium battery packs can be customized for production, processing, and manufacturing according to the specifications of the product, so there are multiple specifications in the sales market. However, due to the large size of the model, it is impossible to standardize the processing technology; The level of production and manufacturing automation technology is not high, and there is a significant difference in single use. In terms of business scale, the service life of a software system is much shorter than that of a single use.

Square lithium battery packaging has high safety and reliability; The energy efficiency of the system is high; Compared to its weight, it is relatively light and has a higher power density; Simple and easy to expand, it is a crucial choice for increasing specific energy based on a single volume.