Magnesium Batteries: Magnesium Storage Performance and Mechanism of 2D‐Ultrathin Nanosheet‐Assembled Spinel MgIn₂S₄ Cathode for High‐Temperature Mg Batteries (Small 36/2019)

Mg batteries have the potential to be the next generation battery with large capability and high safety, owing to the high abundance, great volumetric energy density and reversible dendrite free of Mg anodes. In article number 1902236, Kiyoshi Kanamura and co-workers use spinel MgIn2S4 microflower-like material assembled by 2D-ultrathin nanosheets as cathode material for high-temperature Mg batteries with an ionic liquid electrolyte. As prepared MgIn2S4 exhibits wide-temperature-range adaptability, ultrahigh capacity, fast Mg2+ diffusibility and excellent cyclability. The excellent performance and superior security make it promising as high-temperature batteries for practical applications.