Revolutionizing SOFCs: 300°C Operation Achieved, Promising Lower Costs
2025-08-12
Researchers at Kyushu University have developed a solid-oxide fuel cell (SOFC) operating at a groundbreaking 300°C, significantly lower than the typical 700-800°C. This breakthrough involves a redesigned electrolyte, utilizing scandium-doped barium stannate and barium titanate to create a highly conductive 'ScO₆ highway' for protons. This low-temperature operation promises drastically reduced manufacturing costs, paving the way for consumer-level SOFC applications and potentially influencing other low-temperature energy technologies like electrolyzers and CO₂ conversion reactors.