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A research team at Kyushu University has achieved a significant milestone with the development of a novel solid oxide fuel cell (SOFC) capable of operating efficiently at an intermediate temperature of 300℃. This innovative battery utilizes BaSnO₃ and BaTiO₃ electrolytes enriched with scandium, creating a "scandium superhighway" that facilitates efficient proton transport even at lower temperatures. This advancement is poised to substantially reduce material costs and operational expenses, catalyzing the development of cost-effective, low-temperature SOFCs and accelerating their path to commercialization. While this technology addresses the technical hurdles associated with high-temperature operations, the future still presents challenges in addressing the scarcity and high cost of scandium.
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