Hydrothermal synthesis of Cu-doped SnSe2 nanostructure for efficient lithium storage

We develop a simple and effective strategy to synthesize Cu-doped SnSe2 nanoflakes composites. The Cu doping plays triple roles in electrode: to buffer the volume change of SnSe2, to improve the conductivity of the electrode system, and to provide a considerable electrochemical catalytic function. From overall performance point of view, the SnSe2/0.4Cu sample exhibits the best lithium-storage performance with both superior cycling stability as...