Battery Pack Pressure Vent Mesh is used for equalizing internal pressure in sealed battery enclosures and acting as a flame and spark screen at the vent if a cell goes into thermal runaway. IEC 62133 designs is the reference cited for it on drawings, datasheets and purchase orders.
What IEC 62133 designs Means for Battery Pack Pressure Vent Mesh
The dimensions in the table below are supplied to suit IEC 62133 designs. Where the standard sets requirements for the finished appliance, device or system, compliance testing of that assembly stays with its manufacturer; we supply the metal mesh part to the drawing and can provide material certificates and dimensional reports with the shipment.
Battery Pack Pressure Vent Mesh Dimensions
| Part | Length (mm) | Width (mm) | Thickness (mm) | Hole diameter (mm) | Open area (%) | Function |
|---|---|---|---|---|---|---|
| Vent u00d88 | 8 | 8 | 0.10 | 0.10 | 30 | Pressure equalizing |
| Vent u00d812 | 12 | 12 | 0.15 | 0.15 | 30 | Pressure equalizing |
| Rect 20 u00d7 6 | 20 | 6 | 0.20 | 0.20 | 32 | Thermal-event flame screen |
Specifying Battery Pack Pressure Vent Mesh Beyond the Standard
- Hole size: 0.10–0.20 mm etched holes quench sparks while venting gas.
- Membrane stack: Pair the mesh with an ePTFE membrane for IP67 and pressure equalization.
- Adhesive: High-temperature acrylic or silicone adhesive that stays bonded during venting.
When Battery Pack Pressure Vent Mesh Is Not the Right Choice
Not a burst or relief valve; large packs still need a dedicated emergency degassing valve.
