PEM Fuel Cell Stack - G-20

Summary

  • High-performance, liquid-cooled PEM fuel cell stack incorporating Siltrax’s proprietary Silicon Bipolar Plate Technology
  • Rated Power 20kW @ 0.65V
  • Core volumetric power density of 6.69kW/L and gravimetric power density of 4.8kW/kg
  • Designed for medium-power applications including long-range, high-uptime unmanned aerial vehicles (UAVs), and light mobility applications such as forklifts

Add to compare

Product Overview

  • The G-20 Hydrogen Fuel Cell is a compact, lightweight, high-performance solution engineered for medium-power aerospace and mobility applications.
  • Delivering a rated power output of 20 kW at 0.65 V per cell, the G-20 achieves exceptional volumetric (6.69 kW·L⁻¹) and gravimetric (4.8 kW·kg⁻¹) power densities.

Key Specifications

  • Rated Power: 20.2 kW @ 0.65 V
  • Number of Cells: 100
  • Dimensions (L × W × H): 156 × 156 × 124 mm
  • Volumetric Power Density: 6.69 kW/L
  • Gravimetric Power Density: 4.8 kW/kg

Operating Conditions

  • Operating Temperature: 75–85 °C
  • Fuel: Hydrogen (ISO 14687-2:2012)
  • Oxidizer: Air
  • Coolant: Deionized Water or 50/50 Ethylene Glycol
  • Hydrogen Pressure: 1.2 bar
  • Oxygen Pressure: 1.0 bar
  • Anode Relative Humidity: 80%
  • Cathode Relative Humidity: 0–5%

Applications

  • Hydrogen UAVs, for long-range, high-time drone operations including:
    • Long-range logistics
    • Renewable energy infrastructure inspection (solar/wind farms)
    • Infrastructure monitoring
  • Material Handling:
    • High operating efficiency for forklifts and other logistics equipment
  • Distributed Energy
    • Stationary power generation for commercial and industrial customers

Key Features & Benefits

  • Compact & Lightweight – Integration into space and weight constrained systems without performance compromise
  • High Efficiency – Deliver superior energy conversion per unit mass and volume
  • Durable & Reliable – Silicon bipolar plates provide excellent corrosion resistance and mechanical stability, extending lifetime under continuous operation
  • Operational Resilience – Maintains stable performance across varying humidity, pressure, and temperature conditions

Contact us

  • Interested? Please contact Siltrax by filling in the "Contact Vendor" section or completing an RFQ form
Siltrax Pty Limited

Leveraging 40 years of silicon experience to reshape the future of the hydrogen industry.

At Siltrax, we believe in hydrogen’s pivotal role in global decarbonization efforts. Our innovative silicon technology combines the studiness and reliability of silicon with industry leading MEAs to create an economical, high-performance solution. Siltrax was built on the vision of lowering the cost of hydrogen to make it accessible to all. Our low-cost hydrogen solutions will further decarbonization strategies and help to lead the charge towards a greener future.

Latest products