Researchers at Chalmers University of Technology in Sweden have made a significant breakthrough in improving fuel cells essential for hydrogen-powered heavy-duty vehicles. The team developed a new method to study how fuel cell components degrade over time, aiming for more efficient and durable fuel cells. Hydrogen fuel cells are gaining attention as a clean alternative for heavy-duty vehicles due to their zero carbon dioxide emissions. The research focused on understanding the degradation process of fuel cell components like electrodes and membranes. By tracking specific particles within the fuel cell during operation, the team observed how the cathode electrode degrades over time. This detailed analysis at nano and micro levels provided crucial insights into enhancing fuel cell longevity. The study's findings are a significant step towards designing new materials and improving fuel cell technology for longer-lasting and commercially viable hydrogen-powered vehicles. The research, supported by several organizations, utilized advanced microscopy techniques at the Chalmers Materials Analysis Laboratory.