18650 battery 1800 mah

　　What is important in the production process of lithium-ion batteries?

　　1. Slurry stirring is an important part of lithium-ion battery equipment. Lithium-ion battery positive electrode slurry is composed of binder, conductive agent, positive electrode material, etc., negative electrode slurry is composed of binder, graphite carbon powder, etc.; positive and negative electrodes The preparation of slurry includes mixing, dissolving and dispersing between liquid and liquid, liquid and solid materials.

　　1. Slurry stirring is an important part of lithium-ion battery equipment. Lithium-ion battery positive electrode slurry is composed of binder, conductive agent, positive electrode material, etc., negative electrode slurry is composed of binder, graphite carbon powder, etc.; positive and negative electrodes The preparation of slurry includes the mutual mixing, dissolution, and dispersion of liquid and liquid, liquid and solid materials, etc.; the quality of slurry dispersion directly affects the quality and performance of lithium-ion batteries.

　　2. Coating determines the consistency and superiority of batteries, and occupies a technical position in battery manufacturing. Regardless of the type of battery being produced (e.g. cylindrical or prismatic), the coating machine used in manufacture is the same; different types of batteries require different types of winding machines.

　　3. In addition to lithium-ion battery winding machines, there are capacitor winding machines, textile winding machines, etc. According to the operation mode of the machine, it can be divided into manual winding machine, semi-automatic winding machine and automatic winding machine.

　　4. The importance of testing items has become increasingly prominent. Lithium-ion batteries are easy to burn or explode due to short circuit, overcharge, etc., and will form a finished battery with a protective plate in the application; in the application field with high energy density, lithium-ion batteries need to be combined in series and parallel to form a lithium-ion battery pack. The battery management system (BMS) manages it.

　　It can be seen that the production process of lithium-ion batteries is relatively long, including more than 50 processes, and correspondingly requires more than 50 types of equipment. The entire manufacturing process can be divided into four process sections: pole piece production, battery assembly, battery activation detection and battery packaging. Among them, the equipment related to pole piece production is called front-end equipment, and the equipment related to battery production is mid-end equipment. Cell activation detection and battery packaging equipment as back-end equipment.

　　In recent years, the production of lithium-ion batteries has developed towards integration, line integration and automation. Lithium-ion battery automated production lines supply standardized products to customers. Traditional development methods cannot meet the rapidly changing needs of customers.

　　The quality of lithium-ion batteries is very important. At present, the main problem in the industrialization of lithium-ion batteries in China is the poor consistency of battery quality. The reason is mostly due to the large system error caused by manual operation and poor equipment precision, and the unsustainable production. To fundamentally solve the problem of poor quality consistency in batch production of lithium-ion batteries, it is necessary to improve the control precision of production equipment and the automation level of production lines.

　　Lithium-ion battery pack production line

　　There are many production processes before the formation of lithium-ion batteries. As far as the largest ones are concerned, they follow such a line: precursor materials→cell components→lithium cells→lithium-ion batteries/lithium-ion battery packs. In the industry, there are many manufacturers engaged in the same production, and there is also a manufacturer engaged in multiple productions.