METHOD FOR FORMING A REDUCED GRAPHENE OXIDE/METAL SULFIDE COMPOSITE AND ITS USE AS AN ANODE FOR BATTERIES

摘要

The invention relates to anode materials suitable for use in batteries, such as lithium ion batteries and sodium ion batteries. In particular, the anode material is a reduced graphene oxide/metal sulfide composite. Methods for forming the reduced graphene oxide/metal sulfide composite are also disclosed.

主权项

1. A method for forming a reduced graphene oxide/metal sulfide composite, comprising:
adding a dispersion comprising graphene oxide to hydrogen peroxide solution; adding one or more metal complex or salt solution to the dispersion; precipitating one or more peroxide-rich sol onto the graphene oxide surface to form one or more peroxide rich-metal oxide precursor-supported graphene oxide; treating the supported graphene oxide with a sulfur source; heating the treated supported graphene oxide at a first temperature to form a powder; and heating the powder at a second temperature to form the reduced graphene oxide/metal sulfide composite.