Dendritic nanostructured FeS-based high stability and capacity Li-ion cathodes.

Here we show that dendritic architectures are attractive as the basis of hierarchically structured battery electrodes. Dendritically structured FeS, synthesized simple thermal sulfidation of electrodeposited dendritic α-Fe, was formed into an electrode and cycled lithium. The reversible capacities of the dendritic FeS cathode were 560 mA h g at 0.