BSTRACTA general method for preparing sandwiched nanostructures consisting of reduced graphene oxide (rGO) and metal sulfides is presented. As a demonstrating example

the sandwiched MoS

2

@rGO nanocomposites show a good electrochemical performance including a high reversible capability of 1345 mAh g

−1

at 0.5 A g

−1

over 400 cycles

and a superior rate performance. Moreover

this method has been verified to fabricate a large set of transition metal sulfides- and double metal sulfides-based rGO composites such as CoS@rGO

NiS@rGO

NiCo

2

S

4

@rGO

and CuCo

2

S

4

@rGO

enabling the preparing approach presented here applicable for many possible anode and cathode chemistries.

Impact statement

A general strategy for the fabrication of sandwiched nanostructures consisting of reduced graphene oxide (rGO) and metal sulfides for highly reversible Li-ion battery anode has been developed.