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Battery Manufacturing Terminology
The process of puncturing the gas pouch of a pouch cell after the formation process, extracting the gas generated inside the pouch during the formation process, and then sealing it.
The process of venting the gas generated inside the cell during the formation process to evacuate it from the cell.
The process of detecting whether there is a leakage in the battery using a vacuum test method or a helium leak detection method.
The process of controlling the amount and injection time of liquid electrolyte to inject it into the battery through the injection port. The main purpose is to create ion channels, ensuring that there are enough lithium ions for reversible cycling between the positive and negative electrode sheets during the charge and discharge process. The injection process can be divided into hard shell injection and soft pack injection.
The process of initially charging the battery to activate the active materials in lithium-ion batteries and form a stable solid electrolyte interface (SEI) membrane.
The process of deactivating certain active components within the positive and negative electrode active materials through specific methods to enhance the overall stability of the battery's performance.
The process of grouping batteries based on their overall performance characteristics such as capacity, voltage, internal resistance, etc., in order to ensure consistency among the batteries.
Allowing the injected core to stand in a high-temperature environment.Note: Typically, temperatures between 40°C to 60°C are used.
Components or batteries are successively placed into the assembly fixture, and through tightening bolts or gradually applying pressure, the batteries and components are assembled together to form the initial framework of the module.
