Researchers at Chalmers University of Technology in Sweden have developed a groundbreaking method to study the degradation processes within hydrogen fuel cells using advanced electron microscopes. By tracking specific particles in fuel cells and disassembling them at regular intervals, the team can pinpoint exactly when and where degradation occurs, offering valuable insights for enhancing fuel cell durability. This research aims to address the relatively short lifespan of hydrogen fuel-cell-powered vehicles due to component degradation over time, such as electrodes and membranes. The study of an entire fuel cell, as opposed to half-cells used in previous research, using scanning and transmission electron microscopes has revealed how electrodes degrade during use, providing a deeper understanding of degradation processes. Lead researcher Björn Wickman emphasized the importance of this research for developing new materials and improving fuel cell performance. The findings have implications for the future of hydrogen fuel cell technology, as advancements in durability are essential for the commercial success of hydrogen-powered vehicles, such as trucks that need to withstand tens of thousands of hours of driving. By gaining insights into the processes affecting fuel cell lifespan, the research sets the stage for the design of more robust fuel cells that can contribute to a sustainable transportation future.