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Current Collecting Plate Of Cylindrical Cells Laser Welding Machine By Hanwei AMB

Current Collecting Plate Of Cylindrical Cells Laser Welding Machine By Hanwei AMB

Brand Name:	HanWei Laser
Model Number:	HW-DH
MOQ:	1
Price:	USD
Payment Terms:	T/T
Supply Ability:	600 Set Per Year

Detail Information

Product Description

Detail Information

Place of Origin:

China

Certification:

Packaging Details:

Paper Packing or Wooden Case

Supply Ability:

600 Set Per Year

Highlight:

aluminium laser welding machine for cylindrical cells

current collecting plate laser welding machine

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Product Description

Current Collecting Plate Of Cylindrical Cells Laser Welding Machine

Current Collecting Plate of Cylindrical Cells Laser Welding Solution

The current collector disc in cylindrical batteries (e.g., 4680 specification) is a critical conductive component connecting the core tabs to the battery casing/cap. It must simultaneously fulfill:

Low-resistance conduction: Ensure efficient current transfer from core tabs to battery terminals, minimizing electrical losses.
Structural support: Resist deformation during assembly and maintain welding zone planarity.
Thermal management: Reduce heat transfer to the separator during welding to prevent burn-through-induced short circuits.
Electrolyte infiltration: Accelerate electrolyte filling via through-holes or flow guide channels, enhancing electrode wetting efficiency.

Principles, Characteristics, and Advantages of Cylindrical Current Collector Laser Welding Technology

Basic Principles

Laser welding for cylindrical battery current collectors (e.g., 4680 cells) uses high-energy laser beams to melt and fuse the current collector disc with electrode tabs (foils). The core process involves:

Oscillating Welding Path: The laser beam moves along a preset path while oscillating laterally at 120-300 Hz to increase welding area and reduce heat concentration.
Dynamic Power Compensation: Laser power adjusts in real time based on distance from the central path, decreasing by up to 45% at oscillation extremes.
Shielding Gas Protection: Inert gases form a vortex barrier around the weld zone via tangential inlets, preventing oxidation and spatter.

Key Technical Features

Thermal Management

Reduced Heat-Affected Zone (HAZ): Short-wavelength lasers minimize heat diffusion. For copper collectors, single-mode annular beam lasers achieve 65% absorption, lowering power requirements by 84%.

Insulating Layers: Some designs integrate thermally conductive silicone beneath the collector to dissipate heat and isolate the separator.

High-Speed Welding

Turret Flying Welding: Rotating turrets with galvanometers enable dynamic welding at speeds >300mm/s with ±0.05mm accuracy.
Multi-Track Processing: Oscillation patterns increase weld seam density, cutting total welding time to 1.02s per collector.

Beam Control Innovations

Single-Mode Annular Beams: Feature independently adjustable core/ring beams for deep penetration and surface treatment.
Power-Speed Synchronization: Algorithms synchronize laser power with velocity variations, eliminating voids at corners.

Structural Optimization

Louvered Collector Design: Through-holes allow electrode tabs to pass through, reducing laser penetration depth by 60%.
Reinforced Ribs: Radial or circular ribs resist deformation during casing insertion, maintaining weld-zone flatness.

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products details

Current Collecting Plate Of Cylindrical Cells Laser Welding Machine By Hanwei AMB

Current Collecting Plate Of Cylindrical Cells Laser Welding Machine By Hanwei AMB

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