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Battery Cover Plate Laser Sealing Line
- Product description
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- Commodity name: Battery Cover Plate Laser Sealing Line
The Battery Cover Plate Laser Sealing Line is the ultimate defense against moisture intrusion and electrolyte leakage. Engineered for the demanding requirements of maritime 500Ah+ energy storage and Immersion Cooling systems, this continuous seam-welding machine provides 100% verified hermetic boundaries at mass-manufacturing speeds.
1. Equipment Overview
With the industry’s rapid pivot toward liquid and full-immersion cooling, the definition of a “good seal” has fundamentally changed. A micro-fissure that might have passed an IP65 air-cooled test five years ago will result in catastrophic dielectric fluid ingress (or electrolyte egress) in today’s multi-megawatt containers.
The Huiyao Laser Cover Plate Sealing Line utilizes continuous-wave (CW) high-power fiber lasers running along a precisely synchronized CNC gantry. This creates a deeply penetrated, continuous melt-pool around the perimeter of the battery lid or module enclosure. Integrated with real-time plasma plume monitoring and optional Helium (He) leak-detection vacuum chambers, we guarantee a zero-leak failure rate for IP67+ battery architectures.
2. Key Processes and Modules
2.1 Perimeter CNC Gantry Welding
- Function: A 3-axis or multi-link robotic gantry smoothly guides the laser head around the perimeter of the cover plate at constant velocity, preventing heat build-up in corner radii.
- Specifications:
- Laser Output: Continuous Wave (CW) 2,000W - 6,000W
- Tracking Accuracy: ± 0.02 mm
- Gas Shielding: Co-axial Argon/Nitrogen gas nozzle prevents oxidation during the melt phase.
2.2 Real-Time Plume & Keyhole Monitoring
- Function: As the laser melts the casing, a co-axial multi-spectral sensor analyzes the light emitted from the plasma plume. If the keyhole geometry collapses (indicating a blowhole or lack of fusion), the system alarms instantly.
2.3 Helium (He) Vacuum Leak Testing (Optional Module)
- Function: Post-weld, the sealed battery or enclosure is placed in a vacuum chamber. Helium tracer gas is internally introduced (or sniffed). Mass spectrometers measure leak rates to limits far exceeding standard pressure-decay testing.
- Specifications:
- Detectable Leak Rate: Up to 1.0 × 10⁻⁷ mbar·L/s
3. Production Specifications
Parameter
Specification
Applicable Products
Prismatic Cell Headers, Module Lids, Pack IP67 Enclosures
Sealing Standard Target
IP67 / IP68 / Immersion Cooling Ready
Laser Scan Speed
Up to 150 mm/s (thickness dependent)
Weld Depth (Penetration)
0.8 mm – 3.0 mm
First-Pass Hermetic Yield
≥ 99.8%
4. Frequently Asked Questions (FAQ)
Q: How do you prevent lasers from damaging internal components right beneath the cover plate?
A: We utilize high-frequency modulation and perfectly calibrated focal-spot diameters to ensure “shallow but wide” keyhole penetration. This secures the enclosure seal without allowing the laser energy to penetrate deep enough to reach the jellyroll or internal tabs.Q: Is this system ready for immersion cooling enclosures?
A: Yes. Immersion cooling architectures represent the strictest sealing environment (operating under constant hydraulic pressure). The continuous seam profiles generated by this machine are specifically designed to withstand prolonged pressure differentials without weld fatigue.Q: Can the line handle different casing materials?
A: Our sealing laser parameters can be quickly adjusted via the HMI to accommodate 3000-series Aluminum (standard for prismatic cells), 5000/6000-series structural Aluminum (for pack enclosures), and Stainless Steel variations.
Key words:
Series of Products
The Huiyao Laser Cell OCV Testing & Sorting Machine is a critical component for ensuring the quality and consistency of prismatic battery modules. This semi-automatic station is designed to accurately measure the Open Circuit Voltage (OCV), AC Internal Resistance (ACIR), and polarity of individual cells *before* they enter the main assembly line. By sorting cells into precise groups based on these parameters, it guarantees module balancing, safety, and optimal performance.
The Huiyao Laser Pneumatic Stacking & Pressing Machine is a high-precision, semi-automatic station designed for the flexible assembly of prismatic battery modules. It ensures optimal cell compression and alignment during the manual stacking process, which is critical for module durability, performance, and safety. This unit is ideal for R&D, prototyping, and small-batch production environments where process flexibility and precise pressure control are paramount.
Huiyao Laser is a leading battery laser welding machine manufacturer offering professional battery pack and battery module welding solutions for many fields, such as energy storage systems of research and development machines, as well as complete assembly lines for module and battery pack production.
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