LAUSR

AbstractThe combination of high-capacity and long-term cyclability has always been regarded as the first priority for next-generation anode material for lithium-ion batteries (LIBs). To meet these requirements, in this work, the Ag-decorated pomegranate seed-like Fe3O4 anode was synthesized through a facile one-pot solvothermal method, without intervening of inert gas or any additional surfactants. The Ag nanocrystals uniformly decorated on the pomegranate seed-like Fe3O4 nanograins could significantly improve the rate capability and contribute to long-term cyclability. When used as anode for LIBs, the Ag-decorated Fe3O4 anode exhibited excellent cycling stability after 150 cycles with a high capacity of 550 mA h gcomposite−1 calculated on the composite at a current density of 0.5 C, corresponding to 696 mA h g−1 on the basis of Fe3O4. Furthermore, even at a very high current density of 2.0 C, the discharge-specific capacity remained as high as 390 mA h gcomposite−1. Graphical abstract