What are the processing techniques for lithium batteries? -Lithium - Ion Battery Equipment
Stirring, coating, winding, and testing are important processing techniques for lithium batteries.
1. Slurry stirring is an important part of lithium battery equipment. Lithium battery positive electrode slurry is composed of binder, conductive agent, positive electrode material, etc., negative electrode slurry is composed of adhesive, graphite carbon powder, etc.; positive and negative electrode slurry The preparation of the slurry includes the mutual mixing, dissolution, and dispersion of liquid and liquid, liquid and solid materials, etc.; the quality of the dispersion of the slurry directly affects the quality and performance of the lithium battery.(Lithium - Ion Battery Equipment)
2. Coating determines the consistency and superiority of batteries, and occupies a technical position in battery manufacturing. Regardless of the type of battery being processed (eg cylindrical or square), the coating machine used in manufacture is the same; different types of batteries require different types of winding machines.
3. In addition to lithium battery winding machines, there are also 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 batteries are easy to burn or explode due to short circuit, overcharge and other reasons. In the application, they will form a finished battery with a protective plate; in applications with high energy density, lithium batteries need to be combined in series and parallel to form a lithium battery pack. Through the battery management system (BMS) for management.
It can be seen that the processing technology of lithium batteries is relatively long, including more than 50 processes, and correspondingly requires more than 50 kinds of equipment. The entire manufacturing process can be divided into four process sections: pole piece production, battery cell 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 cell production is mid-end equipment. Cell activation detection And battery packaging equipment is the back-end equipment.
In recent years, lithium battery processing has developed towards integration, line integration and automation. Lithium battery automatic processing lines provide customers with standardized products. Traditional development methods cannot meet the rapidly changing needs of customers.
The quality of lithium batteries is very important. At present, the main problem in the industrialization of lithium batteries in China is that the quality consistency of batteries is not good. The reason is mostly due to the large system error caused by manual operation and poor equipment precision, which cannot be continuously processed. To fundamentally solve the problem of poor quality consistency in batch production of lithium batteries, it is necessary to improve the control accuracy of processing equipment and the automation level of processing lines.
1. Slurry stirring is an important part of lithium battery equipment. Lithium battery positive electrode slurry is composed of binder, conductive agent, positive electrode material, etc., negative electrode slurry is composed of adhesive, graphite carbon powder, etc.; positive and negative electrode slurry The preparation of the slurry includes the mutual mixing, dissolution, and dispersion of liquid and liquid, liquid and solid materials, etc.; the quality of the dispersion of the slurry directly affects the quality and performance of the lithium battery.(Lithium - Ion Battery Equipment)
2. Coating determines the consistency and superiority of batteries, and occupies a technical position in battery manufacturing. Regardless of the type of battery being processed (eg cylindrical or square), the coating machine used in manufacture is the same; different types of batteries require different types of winding machines.
3. In addition to lithium battery winding machines, there are also 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 batteries are easy to burn or explode due to short circuit, overcharge and other reasons. In the application, they will form a finished battery with a protective plate; in applications with high energy density, lithium batteries need to be combined in series and parallel to form a lithium battery pack. Through the battery management system (BMS) for management.
It can be seen that the processing technology of lithium batteries is relatively long, including more than 50 processes, and correspondingly requires more than 50 kinds of equipment. The entire manufacturing process can be divided into four process sections: pole piece production, battery cell 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 cell production is mid-end equipment. Cell activation detection And battery packaging equipment is the back-end equipment.
In recent years, lithium battery processing has developed towards integration, line integration and automation. Lithium battery automatic processing lines provide customers with standardized products. Traditional development methods cannot meet the rapidly changing needs of customers.
The quality of lithium batteries is very important. At present, the main problem in the industrialization of lithium batteries in China is that the quality consistency of batteries is not good. The reason is mostly due to the large system error caused by manual operation and poor equipment precision, which cannot be continuously processed. To fundamentally solve the problem of poor quality consistency in batch production of lithium batteries, it is necessary to improve the control accuracy of processing equipment and the automation level of processing lines.
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