Fraunhofer Institute for Physical Measurement Techniques IPM
Fraunhofer Institute for Physical Measurement Techniques IPM
Miniature hydrogen sensor
© Fraunhofer IPM
This sensor, developed as part of the HySABi project, combines a thermal conductivity detector and a pellistor in a very small space for reliable H2leakage detection.

Reliable hydrogen
leakage detection

We develop miniature hydrogen sensor systems to ensure the safe operation of stationary and mobile fuel cells.

© Fraunhofer IPM

Hydrogen sensor technology for fuel cells

Hydrogen-based technologies contribute significantly to the transition toward a more sustainable and lower-emission energy supply. The use of hydrogen, however, carries the risk of ignition or explosion. Thus, reliable sensor technology that can safely detect hydrogen (H₂) leaks and quickly locate them is essential for the widespread use of this technology.

Safe infrastructure and industrial processes

At Fraunhofer IPM, we develop precise hydrogen sensors based on the physical principle of thermal conductivity detection (TCD). This innovative measurement method detects hydrogen concentrations between 0 and 100 % with such accuracy that potential hazards, such as increased release or explosions, can be identified early on.

Examples of applications of H2 sensors include hydrogen storage facilities and filling stations, which require continuous monitoring for leaks and critical gas concentrations in the air. Many industries that use hydrogen employ sensors to control and monitor production processes to ensure safety and efficiency.

Stationary or mobile

TCD hydrogen sensor technology can be used in stationary and mobile fuel cells. For example, they are used in hydrogen-powered commercial vehicles, such as buses and trucks, as well as in fuel cell systems used to generate power where conventional energy sources are unavailable.

Miniaturized sensor system for detecting hydrogen: The sensor compensates for humidity and temperature influences. (Vitesco Technologies GmbH)

Researching high-performance hydrogen sensor technology

Thanks to different research projects, Fraunhofer IPM has made significant progress in hydrogen sensor technology.

H2 sensor system for hydrogen-powered commercial vehicles

In the HySABi project (Miniaturized H2 sensor system to ensure the acceptance of fuel cell drives), we collaborated with industry partners to develop a novel H2 sensor system for hydrogen-powered commercial vehicles. The system combines efficiency with the high safety standards of the automotive industry.

Optimized operation management in fuel cell systems for stationary energy generation

With the EISBaEr project, which focuses on fuel cells for stationary energy generation, we aim to further advance the development and application of hydrogen sensors. Our goal is to achieve real-time data-based operational management of fuel cell systems to significantly optimize their performance, efficiency, reliability, and service life.