Graphene oxide (GO) was de-oxygenated using gallic acid under mild conditions to prepare reduced
graphene oxide (RGO). The resultant RGO showed a lithium-ion storage capacity of 1280mAh g1 at a
current density of 200mA g1 after 350 cycles when used as an anode for lithium ion batteries. The RGO
was further used to stabilize silicon (Si) nanoparticles to prepare silicon-graphene composite electrode
materials. Experimental results showed that a composite electrode prepared with a mass ratio of Si:
GO= 1:2 exhibited the best lithium ion storage performance.