<p>➀ Researchers at Helmholtz-Zentrum Dresden-Rossendorf developed innovative flotation and liquid-liquid extraction methods to recycle critical metals (e.g., platinum, iridium, rare earths) from electrolyzers, achieving up to 90% recovery rates;</p><p>➁ The recycled materials are essential for sustainable hydrogen production, supporting Germany’s national hydrogen strategy targeting 95–135 TWh of hydrogen demand by 2030;</p><p>➂ The project, part of the BMBF-funded H2Giga initiative, aims to enhance the economic and environmental viability of hydrogen electrolysis through scalable recycling processes and lifecycle assessments.</p>