▎ 摘　　要

NOVELTY - A multilayered graphene material (100) comprises at least two graphene layers (102) which are attached to one another and having several spaces between the layers, and several yolk-shell structures (104) positioned within the spaces between the layers. Each yolk-shell structure comprises a nano- or microstructure comprising elemental sulfur (110) and a polysulfide-trapping agent, and a carbon-containing porous shell (112) with an exterior surface and an interior surface which defines and encloses a hollow space (118) within the interior of the shell. The elemental sulfur nano- or microstructure is comprised in the hollow space. The several spaces between the at least two graphene layers are configured to retain the yolk-shell structures. USE - Multilayered graphene material is used in the form of sheet or film for electrode of energy storage device e.g. rechargeable battery such as lithium-ion and lithium-sulfur batteries (all claimed). Can also be used for capacitor and supercapacitor. ADVANTAGE - The multilayered graphene material is binder-free and environmentally-friendly, and does not have the problem of expansion and generation of damage. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacture of multilayered graphene material, which involves forming a multilayered graphene precursor material from a composition comprising several graphene oxide layers or graphene, and several of metal sulfide having nano- or microstructures comprising a carbon-containing organic polymer coating, or a composition comprising graphene oxide layers or graphene layers, several of metal sulfide having nano- or microstructures, and a carbon-containing organic polymer, heat treating the multilayered graphene precursor material to convert any graphene oxide layers to graphene, optionally form carbon-containing porous shells from the shells comprising the carbon-containing organic polymer precursor, and form at least one attachment point between the at least two graphene layers from the carbon-containing organic polymer, and subjecting the multilayered graphene precursor material to predetermined conditions to oxidize the metal sulfide nano- or microstructures to form elemental sulfur nano- or microstructures comprised within hollow spaces of the carbon-containing porous shells. The multilayered graphene precursor material comprises the at least two graphene or its oxide layers which are attached to one another, and the core-shell structures comprising metal sulfide containing the nano- or microstructures, and a shell which encompasses the metal sulfide containing nano- or microstructure, and comprising the carbon-containing organic polymer. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the multilayered graphene material. Multilayered graphene material (100) Graphene layer (102) Yolk-shell structures (104) Elemental sulfur (110) Carbon-containing porous shell (112) Hollow space (118)