Direct Air-Cooled Metal Fuel Cell Stack Module 2026/09/29

Introductions

To meet long-endurance requirements for UAVs, this technology focuses on stack lightweighting and module optimization. Through component thinning and innovative sealing, the design effectively reduces system weight to maximize fuel capacity, significantly extending flight and operational time. The stack delivers a rated power of 1,450 W with a power density exceeding 785 W/kg, achieving high-efficiency power output.

Technical Advantages and Features

• Non-humidified Membrane Electrode Assembly (MEA): Combines electrode pore design with hydrophobic and hydrophilic control to achieve autonomous water management, eliminates external humidification components to significantly simplify system architecture, and maintains stable power output at ambient temperatures up to 40 °C.
• Lightweight Stack Fastening Structure: Utilizes dual sealing materials with different elastic modulus to ensure superior airtightness and integrates a uniform-fuel-distribution porous flow channel structure to optimize reaction efficiency.
• Composite Power Unit Design: Integrates cooling and reaction functions into a single metal plate design and reduces stack weight by 50% compared to graphite stacks through structural simulation and optimization.

Industrial Applications and Business Opportunities

• Industry Applications
  • Power source for UAVs, mobile robotics, and portable power systems.
• Application Examples
  • The lightweight air-cooled system has been integrated into UAVs for field validations with industry partners, including a Tainan-to-Penghu cross-sea flight and high-altitude emergency deliveries.
  • Applications extend to remote inspection such as solar and offshore wind farms, as well as emergency rescue including search and rescue, communication, and logistics, offering a significant competitive edge.