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New Energy Battery Manufacturing Laser Cleaning Solutions
Laser cleaning has become a key surface treatment technology in battery manufacturing, widely used across three main production stages: electrode foil production, cell assembly, and battery pack assembly. By integrating lasers, cleaning heads, and control software through computerized systems, the application of laser cleaning in these processes significantly enhances battery manufacturing quality.
- Laser Cleaning Before Electrode Coating
The positive and negative electrodes of lithium batteries are made by coating active materials onto metal foils (typically aluminum for the positive electrode and copper for the negative electrode). Before coating, these foils must be cleaned. Traditional wet cleaning using ethanol can easily damage other battery components. Dry laser cleaning effectively eliminates this issue.
- Laser Cleaning Before Battery Welding
High-frequency short-pulse lasers are used in this application. The high-energy beam at a specific wavelength is absorbed by rust, paint, or contaminant layers, generating rapidly expanding plasma and shock waves that fragment and remove the contaminants. This process effectively cleans dirt and dust from the terminal faces of battery cells, preparing them for welding and reducing welding defects.
- Laser Cleaning During Battery Assembly
To prevent safety incidents, lithium battery cells are typically wrapped with insulating tape to provide electrical insulation, prevent short circuits, protect circuits, and avoid scratches. Laser cleaning of insulation plates and end plates removes surface contaminants, roughens the cell surface, and improves the adhesion of tape or adhesive coatings. This process produces no hazardous pollutants, making it an environmentally friendly green cleaning method.
Beyond these examples, laser cleaning also offers significant advantages in over a dozen other battery manufacturing processes, including electrophoretic paint removal from battery covers and foil label cleaning.
For many years, Shengtong Intelligent Laser Equipment Group has been committed to delivering high-quality, high-tech products and services. Driven by excellence in service and integrity, the company is dedicated to providing customers with professional technical support, comprehensive laser cleaning solutions, and related auxiliary equipment.
