Detailed explanation of lithium battery pack classification, application field and production process

　　With the rapid development of lithium-ion battery packs driven by the new energy automobile industry, lithium-ion battery packs have gradually become the mainstream, and people's attention to lithium-ion battery packs has improved to a higher level. Today, I will talk about the classification and application of lithium-ion battery packs.

　　Lithium ion battery is a kind of battery with lithium metal or lithium alloy as cathode material and non-aqueous electrolyte solution. Lithium ion battery pack has been gradually adopted and accepted by many companies due to its advantages of safety, environmental protection, small size, light weight, large capacity, long service life, fast charging, etc. The lithium-ion battery pack has the above advantages. The lithium-ion battery pack produced is safe and reliable, and is loved by users.

　　1、 Classification of Li ion battery packs

　　According to the internal materials, lithium ion batteries are divided into two categories: lithium metal batteries and lithium ion batteries;

　　According to the appearance of the lithium-ion battery pack, it can be divided into square lithium-ion battery and cylindrical lithium-ion battery;

　　According to the material of lithium-ion battery package, it can be divided into aluminum shell lithium-ion battery, steel shell lithium-ion battery and soft package battery;

　　Lithium ion batteries are also divided into two categories: non rechargeable and rechargeable.

　　According to the positive and negative electrode materials of the lithium-ion battery pack, it can be divided into: lithium guptate (LiCoO2) battery or lithium manganate (LiMn2O4), lithium iron phosphate battery, and disposable manganese dioxide lithium ion battery;

　　The lithium-ion battery packs are classified according to different performance and uses: disposable lithium-ion batteries -- lithium manganese batteries -- button type 3V batteries, high-capacity lithium-ion batteries -- used in mobile phone digital products, high rate lithium-ion batteries -- used in electric vehicles and electric tools and aircraft models, high temperature lithium-ion batteries -- miner's lamps, indoor lighting, built-in backup power supply for machines, and warm lithium-ion batteries--- Outdoor environment.

　　2、 Analysis of the Application Field of Lithium Ion Battery Pack

　　At present, lithium-ion battery packs are widely used in consumer electronics, new energy vehicle power and energy storage. The demand for battery capacity of new energy vehicles and energy storage systems is much larger than that of lithium batteries, and their proportion in lithium ion batteries will continue to increase with the development of the industry.

　　According to the field of transportation power supply, it mainly includes: electric bicycles, electric motorcycles, electric vehicles (hybrid and pure power), electric special vehicles (electric golf cars, electric sightseeing vehicles, electric engineering vehicles, electric balance vehicles, etc.).

　　According to the importance of the field of electric energy storage power, it includes: large-scale solar/wind energy power storage system, grid peak shaving power supply, power dedicated uninterruptible power supply system, integrated power supply system, photovoltaic off grid energy storage power station system.

　　According to the importance of mobile communication power supply, it includes: outdoor integrated base station lithium ion battery power supply, edge network base station lithium ion battery pack power supply, non physical site lithium ion battery backup power supply, communication building 336V HVDC data center backup power supply, renewable energy base station power supply, etc.

　　The new energy storage power supply mainly includes: solar street lamps, starting power supply, electric tools, electric toys, electric models, aircraft models, and electric robots.

　　According to the important application fields of aerospace and military power supply, they are: power supply for large ships, power supply for aircraft, power supply system for aerospace vehicles, power supply for military armor, and power supply for large civil mining equipment.

　　Detailed explanation of the production process of lithium-ion battery pack:

　　As we all know, the production process of lithium-ion battery packs is quite complex. After all, the safety performance of lithium-ion battery products is directly related to the life and health of consumers. In the production and manufacture of natural lithium-ion battery packs, there are high requirements for the performance, accuracy, stability and automation level of equipment.

　　Specifically, it is as follows: material preparation -- homogenate -- coating -- rolling -- slitting -- baking -- winding -- entering the shell -- laser welding -- baking -- liquid injection -- pre filling -- sealing -- cleaning -- aging -- full inspection -- warehousing -- shipping. The production process of lithium-ion battery pack is not very consistent for each manufacturer, but most of them are inseparable from these links.

　　Objectively speaking, the production process of lithium-ion battery pack is divided into three sections: first, pole piece production, second, cell production, and third, battery assembly. In the production process of lithium-ion battery pack, the fabrication of electrode piece is the basis, the fabrication of battery cell is the core, and the battery assembly is related to the quality of finished lithium-ion battery. The specific links in the production process of lithium ion battery pack include positive paste drawing, negative paste drawing, positive sheet, negative sheet, steel shell assembly, liquid injection, detection and packaging.

　　It can be seen that each production link in the production process of lithium-ion battery pack is closely related to product quality and safety, and each link in the production process of lithium-ion battery pack should be strictly and carefully managed, so as to improve the safety performance of lithium-ion battery pack products.

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