// Alkali metal-oxygen batteries promise high gravimetric energy densities but suffer from low rate capability, poor cycle life and safety hazards associated with metal anodes. A safe, high-rate and long-life oxygen battery that exploits a potassium biphenyl complex anode instead of the problematic potassium metal anode has recently been developed by Prof. Yi-Chun Lu, Associate Professor of the Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong (CUHK) and her research team. This technology provides a safe and efficient solution for the storage of renewable energy sources such as solar and wind. The breakthrough was recently published in the world-leading scientific journal, Nature Materials, a sister journal of Nature. //

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