Lanthanum-Doped Material to Boost Supercapacitors

In July 2025, researchers announced a breakthrough in energy storage by engineering a lanthanum-doped silver niobate (AgNbO₃) compound that significantly enhances supercapacitor performance.

Key Points

Enhanced Supercapacitor Performance: The new lanthanum-doped AgNbO₃ material increases energy density while maintaining rapid charge-discharge capabilities and stability.
Material Engineering: Incorporation of lanthanum, a rare-earth element, into silver niobate nanoparticles improves electrical conductivity and reduces particle size, thereby increasing surface area.
Outstanding Efficiency: The material demonstrated 118% energy retention after multiple cycles and 100% coulombic efficiency, indicating no energy loss during charging.
Prototype Success: An asymmetric supercapacitor prototype using this compound successfully powered an LCD display, showcasing potential for practical applications.
Sustainable Energy Impact: The innovation offers a promising eco-friendly solution for energy storage in portable electronics and renewable energy systems.