Automatic production equipment for laser welding of positive and negative electrode connection tabs
Automated production equipment for laser welding of positive and negative electrode connection tabs in lithium battery packs is an essential tool in modern lithium battery production. By leveraging high-precision laser welding technology, automated production processes, and stringent quality control, it ensures the high-quality production of lithium battery modules. This equipment is suitable for various types of lithium batteries and can meet the requirements of different application scenarios. It is an ideal choice for lithium battery manufacturers to improve production efficiency and product quality.
Detailed Introduction to Automated Production Equipment for Laser Welding of Positive and Negative Electrode Connection Tabs in Lithium Battery Packs
I. Equipment Overview
Automated production equipment for laser welding of positive and negative electrode connection tabs in lithium battery packs is specifically designed for the assembly process of lithium battery modules, where the connection tabs are welded to the battery cells. This equipment utilizes high-precision laser welding technology to achieve efficient, stable, and high-quality welding results. It is widely used in the production of lithium battery modules for electric vehicles, energy storage systems, and other applications.
II. Technical Highlights
- High-Precision Laser Welding System
- Laser Type: Fiber lasers or semiconductor lasers are used, known for their high energy density, stability, and long service life, enabling precise welding results.
- Laser Wavelength: Typically 1064 nanometers or 940 nanometers, suitable for welding various metal materials.
- Welding Power: Adjustable range from 500W to 6000W, depending on welding requirements.
- Welding Spot Diameter: Adjustable range of 0.5 mm to 5 mm to accommodate different sizes of connection tabs.
- Welding Speed: Up to 500 mm/s to ensure production efficiency.
- Automated Loading and Unloading System
- Automatic Loading: Equipped with robotic arms or vibratory feeders to automatically deliver battery cells and connection tabs to the welding station.
- Automatic Unloading: After welding, the robotic arm moves the finished module to the next process or finished goods area.
- Vision Positioning System: High-precision vision recognition technology is used to quickly and accurately identify the positions of battery cells and connection tabs, ensuring welding accuracy.
- Welding Quality Control System
- Real-Time Monitoring: Equipped with a laser welding monitoring system to monitor the molten pool state, welding power, welding speed, and other parameters during the welding process in real-time.
- Quality Inspection: After welding, a vision inspection system checks the appearance of the weld seam to ensure it is defect-free.
- Data Recording: All welding parameters and inspection results are recorded and stored for subsequent quality traceability.
- Safety and Environmental Protection System
- Laser Protection: The equipment is equipped with laser protection shields to ensure the safety of operators.
- Smoke Treatment: An efficient smoke purification system is installed to effectively remove smoke and harmful gases generated during the welding process.
III. Applicable Lithium Battery Types
The equipment is suitable for various types of lithium batteries, including but not limited to the following:
- Prismatic Lithium Batteries
- Characteristics: Typically housed in aluminum or stainless steel casings, offering high mechanical strength and good thermal conductivity.
- Applications: Widely used in electric vehicles, energy storage systems, and other fields.
- Cylindrical Lithium Batteries
- Characteristics: Common 18650 and 21700 models, known for their standardized sizes and high energy density.
- Applications: Suitable for notebook computers, power tools, electric vehicles, and other applications.
- Pouch Lithium Batteries
- Characteristics: Encased in aluminum-plastic film, providing good flexibility and safety.
- Applications: Used in smartphones, tablets, electric vehicles, and other applications.
IV. Equipment Parameter Table
| Parameter Name | Parameter Value |
|---|---|
| Laser Type | Fiber laser, Semiconductor laser |
| Laser Wavelength | 1064 nm, 940 nm |
| Laser Power | 500W, 1000W, 2000W, 3000W, 4000W, 6000W |
| Welding Spot Diameter | 0.5 mm to 5 mm |
| Welding Speed | Up to 500 mm/s |
| Positioning Accuracy | ±0.02 mm |
| Repeatability Accuracy | ±0.01 mm |
| Operating Voltage | AC 220V/50Hz |
| Cooling Method | Water-cooled |
| Applicable Battery Types | Prismatic, Cylindrical, Pouch |
| Equipment Dimensions | 2000 mm × 1500 mm × 1800 mm (customizable) |
| Equipment Weight | Approximately 2000 kg |
V. Equipment Advantages
- High Efficiency: The automated production process significantly increases production efficiency and reduces manual intervention.
- High Quality: High-precision laser welding technology ensures stable and reliable welding quality, with aesthetically pleasing and defect-free weld seams.
- High Flexibility: The equipment can be quickly adjusted to accommodate different battery models and welding requirements, offering strong adaptability.
- High Safety: Equipped with comprehensive laser protection and smoke treatment systems to safeguard the health and safety of operators.
VI. Application Scenarios
- Electric Vehicles: Used for the assembly of power battery modules to ensure the stability and safety of the battery modules.
- Energy Storage Systems: Used for the production of energy storage battery modules to enhance the reliability and lifespan of the energy storage systems.
- Consumer Electronics: Used for the assembly of battery modules in notebook computers, smartphones, and other products to improve product quality and consistency.