Researchers at Chalmers University of Technology in Sweden have made significant progress in improving the efficiency and longevity of fuel cells for heavy-duty hydrogen vehicles. By developing an innovative method to study the degradation of fuel cell components over time, they aim to address the limitations that hinder the widespread adoption of hydrogen-powered vehicles compared to combustion-fueled counterparts. Hydrogen is increasingly recognized as a promising fuel alternative for heavy-duty transportation, offering emissions-free operation when produced from renewable sources. Unlike battery-powered electric vehicles, hydrogen-powered vehicles alleviate the strain on the electricity grid by enabling production and storage of hydrogen during off-peak periods. The research team at Chalmers University has focused on understanding the ageing process of fuel cells by examining specific particles within the cells using advanced electron microscopes. Contrary to previous assumptions, their findings challenge the belief that disassembling fuel cells for study negatively impacts performance, providing valuable insights into degradation mechanisms at play. This newfound understanding at the nano and micro levels of fuel cell degradation paves the way for developing improved materials and enhancing the lifespan of fuel cells, crucial steps towards commercial success in the hydrogen vehicle industry. The research, supported by various Swedish organizations and companies, aligns with the industry's target of achieving longer-lasting fuel cells to meet the demands of heavy-duty applications. The impact of this research extends beyond academic circles, with implications for future advancements in fuel cell technology and sustainable transportation solutions. By shedding light on the intricate processes governing fuel cell degradation, the Chalmers University team contributes to the ongoing efforts to enhance the performance and durability of fuel cells for a greener automotive landscape.