The current mainstream lithium battery assembly method

At present, there are three main types of mainstream lithium battery assembly methods: cylindrical, square and soft bags. Different packaging structures mean different characteristics, each with its own advantages and disadvantages. Cycle refers to cylindrical lithium batteries. The earliest cylindrical lithium batteries of lithium batteries were made by Sony Corporation of Japan in 1992. 18650 lithium batteries. Because of the long cylindrical lithium batteries before the 18650s, the market penetration rate is very high. Cylindrical lithium batteries are selected Appropriate relevant and experienced tortuous process, high degree of automation, stable product quality, and relatively low capital. There are many types of cylindrical lithium batteries, such as 14650, 17490, 18650, 21700, 26650, etc. Cylindrical lithium batteries are very popular among lithium battery companies in Japan and South Korea, and there are also companies of a certain scale in my country that process cylindrical lithium batteries. Note: Lilang mainly uses 26650 cylindrical lithium batteries. Square lithium batteries generally refer to aluminum or steel square battery shells. The penetration of square cells is very high in my country. In recent years, the capacity of automobile power lithium-ion batteries and automobile life journey batteries has become increasingly prominent. Domestic power lithium-ion battery manufacturers Choose aluminum square batteries with high battery energy density, because the square cell structure is relatively short, unlike cylindrical batteries that use high-strength stainless steel as the shell and have accessories such as explosion-proof safety valves, so all accessory components must be light and energy density Relatively high. There are two different technologies for prismatic batteries: winding and delamination. Polymer lithium batteries use colloidal or solid polymer electrolyte prismatic batteries. Their production processes are highly similar. Nowadays, soft pack batteries, polymer batteries, lithium polymer batteries, mobile phones, tablets and other high-end 3c products are on the market. , Because all depends on the synthetic polymer electrolyte, the capital is relatively high, and it is now used for power lithium-ion batteries without capital advantages. However, since the soft pack battery has no hard case maintenance and is vulnerable to attacks, adequate measures must be taken when using it. Circular lithium battery cycle refers to cylindrical lithium battery. The earliest cylindrical lithium battery of lithium battery was made by Sony Corporation of Japan in 1992. 18650 lithium battery. Because of the long cylindrical lithium battery before the 18650s, the market penetration rate is very high. Cylindrical lithium battery chooses appropriate relevant experience tortuous process, high degree of automation, stable product quality, and relatively low capital. There are many types of cylindrical lithium batteries, such as 14650, 17490, 18650, 21700, 26650, etc. Cylindrical lithium batteries are very popular among lithium battery companies in Japan and South Korea, and there are also companies of a certain scale in my country that process cylindrical lithium batteries. With the further expansion of the electric vehicle market and the continuous improvement of battery life requirements, automobile companies have put forward higher requirements for power lithium-ion batteries in terms of energy density, processing costs, cycle life, and product additional attributes. In the case of no major breakthrough in the field of raw data, appropriately increasing the volume of the cylindrical battery to obtain a larger battery capacity has become an exploration direction. At present, Tesla has begun large-scale processing of 21,700 batteries, and plans to use them in the Model 3 of Tesla cars. If they pass the tests of other Tesla models, they will completely replace the 18650 batteries previously used, which may lead the 21700 trend in the world. Square lithium battery Square lithium battery generally refers to aluminum or steel square battery shell. The penetration of square cells is very high in our country. In recent years, the capacity of automobile power lithium ion battery and automobile life journey battery has become increasingly prominent. Domestic power lithium ion Battery manufacturers choose aluminum square batteries with high energy density. Because the square cell structure is relatively short, unlike cylindrical batteries, which use high-strength stainless steel as the shell and have accessories such as explosion-proof safety valves, all accessory components must be light. , The energy density is relatively high. There are two different technologies for prismatic batteries: winding and delamination. 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: Knowledge of lithium battery maintenance circuit