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Secondary Battery

Prismatic

Prismatic batteries offer superior energy density and spatial efficiency, making them highly advantageous for module design. Their exceptional structural integrity ensures robust stability against vibrations and external impacts.

INLASER’s welding systems are optimized for a wide range of metal joining processes for prismatic batteries, including tab welding, cap plate joining, case sealing, and busbar connections.

By leveraging low-spatter and low-deformation laser technology, we achieve high-strength, airtight bonding for maximum reliability.
Prismatic

INLaser Systems for Prismatic Battery Lines

On-The-Fly System

On-The-Fly System

Continuous laser welding of caps, lead tabs, and injection holes even during high-speed transfer to reduce cycle time.

Vision Inspection (AOI) System

Vision Inspection (AOI) System

Automatically inspect product surfaces after key manufacturing processes via optical imaging, enabling early detection of defects.

Unified Traceability & Connectivity

Unified Traceability & Connectivity

Integration with MES and other systems for cell-level traceability of equipment and quality data.

Key Processes: Prismatic Battery Lines

Can Welding

Precision laser welding of the case and cap ensures superior airtightness and stable connectivity.

  • Minimal Heat Distortion: Localized heating prevents internal damage
  • Reliable Sealing: Uniform welding prevents electrolyte leakage
  • Optimized Resistance: Improved bonding boosts power efficiency

Vent Welding

Precision laser welding of the cap vent ensures stable pressure control and perfect airtightness.

  • Ultra-Precise Control: Fine energy adjustment prevents damage to thin vent foils
  • Minimal Distortion: Localized heating maintains component precision
  • Zero Gas Leakage: Consistent penetration ensures maximum safety and sealing

Terminal Welding

Precision welding of terminals and caps ensures an optimal, loss-free current path.

  • Minimized HAZ: Reduced Heat Affected Zone prevents damage to nearby parts
  • Structural Stability: Consistent penetration depth without cap deformation
  • Maximized Conductivity: Optimized bonding area minimizes electrical resistance

Tab Welding

Precision laser welding of electrode tabs and foils creates a stable, loss-free current path.

  • Seamless Layering: Flawless multi-foil bonding without lifting
  • Low-Heat Precision: Zero deformation via short-pulse thermal control
  • Stable Reliability: Consistent penetration for high strength and safety

Process Map: Prismatic Battery Lines

Welding

  • Can & Cap
  • Vent
  • (+), (-) C/C
  • (+), (-) Tab & Foil

Cleaning

  • Cap Assembly
  • (+), (-) Tab
  • Injection Hole

Marking

  • Cap Assembly
  • Can