Applies reinforced thermal sealing for large-format power cells where seal strength and dimensional stability are critical.
Why this machine: Large-format EV pouch cells experience higher internal stress and thicker package layers. Reinforced sealing force and optimized thermal profiles ensure mechanical seal strength and durability under automotive safety requirements.
Ideal User: EV pouch cell manufacturers and automotive battery pilot lines.
When to choose: When automotive-grade reliability and mechanical seal strength are the top priorities.
Related Equipment: EV welding machine · EV electrolyte filling machine · Vacuum sealing machine
These features control large-format pouch sealing behavior under reinforced thermal and mechanical conditions.
Core Advantages Over Consumer-Grade Sealing Systems
EV battery cells impose fundamentally different mechanical and safety demands compared with consumer electronics cells. Larger formats, thicker electrode stacks, and long-term vibration exposure require sealing systems designed for structural durability rather than compact manufacturing speed.
This equipment integrates reinforced thermal sealing profiles, high-stability pressure control, and mechanically strengthened assemblies to maintain uniform seal integrity across large sealing areas. The design ensures consistent seal strength, resistance to mechanical fatigue, and long-term leakage prevention under demanding automotive operating conditions.
This machine is designed for sealing large-format pouch battery cells for EV applications.
Its core functions include:
| Cell spec. (L) | 160-300mm |
| Cell spec. (W) | 100-250mm |
| Cell spec. (T) | 5-15mm |
| Production efficiency | 6-8ppm |
| Sealing thickness accuracy | ±0.015mm |
| Width of Unsealed area | 0.5-1.5mm |
| First-pass yield (FPY) | ≥99.5% |
| Equipment utilization rate | ≥95% |
| Power | 25KW |
| Weight | 7T |
| Equipment dimension (reference) | 10000×3000×2400mm (LxWxH) |
This section explains where large-format sealing occurs in power-cell manufacturing.
The process closes aluminum-laminated housings after filling to prepare cells for downstream conditioning.
Packaging focuses on heavy-duty sealing modules and frame stability.
Large-format cell handling is supported by the patented pouch power battery cell loading manipulator, designed to position and transfer cells reliably during the sealing preparation stage.
The controlled mechanical placement improves alignment and handling stability for heavy, large-size pouch cells prior to subsequent sealing and finishing processes.
Tell us about your project requirements, equipment needs, or technical questions. Our team will get back to you as soon as possible.