Classification and working principle of battery production e

There are many classifications of battery production equipment. Here are some common classification methods:

1. **Classification by battery type**: According to the different types of batteries produced, the equipment can be divided into lithium battery production equipment, nickel-cadmium battery production equipment, nickel-metal hydride battery production equipment, lead-acid battery production equipment, alkaline battery production equipment, etc.

2. **Classification by production process**: Generally speaking, the battery production process can be divided into four process segments: pole piece production, battery cell assembly, battery cell activation detection and battery packaging. Each process segment requires different equipment. According to the production process, lithium battery equipment can be divided into three sections: front, middle and back:

- **Front section**: It is the pole piece production link, which mainly includes stirring, coating, rolling, slitting, and ear forming processes, among which the coating machine is the most core equipment;

- **Middle section**: It is the battery cell assembly link, which mainly includes winding/stacking, shelling, and electrolyte injection processes, among which the winding/stacking machine is the most core equipment;

- **Back section**: It is the electrochemical link, which mainly includes formation, capacity division, detection, and assembly of battery packs, etc.

3. **Classification by working principle**: According to the working principle of the equipment, it can be divided into ternary, lithium iron phosphate, solid-state batteries, etc.

 

The working principle of battery production equipment is as follows:

 

1. **Preparation of positive and negative electrode materials**: Positive and negative electrode materials are the core part of the battery, and their preparation process includes mixing, pressing, drying and other processes. For example, in the production of positive electrode materials for lithium batteries, various chemical raw materials need to be added to the reaction tank in a certain proportion, and react under heating, stirring and other conditions to finally obtain positive electrode materials.

 

2. **Production of battery cells**: Battery cells are an important part of the battery, including positive electrode sheets, negative electrode sheets and diaphragms. The production process of battery cells includes coating, pressing, drying and other processes.

 

3. **Assembly of battery cells**: Battery cells are the main part of the battery, including the lamination, winding, sealing and other processes of positive and negative electrode sheets.

 

4. **Battery testing**: Battery testing is an important link to ensure battery quality, including battery capacity measurement, charge and discharge performance testing, cycle life testing, etc.

5. **Battery assembly**: Battery assembly is the process of assembling multiple battery cells into a battery pack, including processes such as connecting battery cells and packaging the shell.