A single cell cannot be used, but only by combining many cells together with a protective circuit and a protective shell can it be used directly. This is called a battery module.
A battery module is made up of a number of cells. It is necessary to pass strict screening and assemble the cell with good consistency into a modular battery module according to precise design, and install a single battery monitoring and management device. CATL's module fully automated production line, the whole process is completed by more than a dozen precision manipulator cooperation. In addition, each module has its own fixed identification code, the whole process can be traced when there is a problem.
The production process from a simple cell to a battery pack is also quite complex, requiring multiple processes, not at all as simple as the manufacturing process of a cell.
Feeding
The cell is transferred to the designated position, and the manipulator automatically grabs and sends the module assembly line.
Give the cell a bath - plasma cleaning procedure
The surface of each cell is cleaned (CATL uses plasma treatment to ensure cleanliness). Ionic cleaning is used here to ensure that contaminants in the process do not adhere to the bottom of the cell.
Why plasma cleaning? The reason is that plasma cleaning technology is the most thorough peeling cleaning method, its biggest advantage is that there is no waste liquid after cleaning, the biggest characteristic is that the metal, semiconductor, oxide and most polymer materials can be well treated, can realize the overall and local and complex structure cleaning.
