▎ 摘　　要

NOVELTY - Production of anode layer, involves (a) preparing a graphene dispersion comprising multiple particles of anode active material, multiple sheets of a starting graphene material comprising pristine graphene material or non-pristine graphene material comprising non-carbon elements, and an optional blowing agent, (b) dispensing the dispersion on a substrate surface to form a wet layer,(c) removing the liquid medium from the wet layer, and (d) heat treating. The starting graphene material is selected from graphene oxide, reduced graphene oxide, and/or chemically functionalized graphene. USE - Production of anode layer for lithium-ion battery, lithium metal battery, lithium-sulfur battery, or lithium-air battery. ADVANTAGE - The method effectively produces the lithium-ion battery with improved reversible capacity, cycle efficiency, and high conductivity. DETAILED DESCRIPTION - Production of anode layer, involves (a) preparing a graphene dispersion comprising multiple particles of anode active material, multiple sheets of a starting graphene material comprising pristine graphene material or non-pristine graphene material comprising 2 wt.% or more non-carbon elements, dispersed in a liquid medium, and an optional blowing agent, (b) dispensing the graphene dispersion on a surface of a supporting substrate to form a wet layer of graphene and anode active material mixture,(c) partially or completely removing the liquid medium from the wet layer of graphene and anode active material to form a dried layer of mixture material, and (d) heat treating the dried layer of mixture material at a heat treatment temperature (T1) of 80-3200 degrees C at a desired heating rate to induce volatile gas molecules from non-carbon elements, or to activate the optional blowing agent for producing pore-containing graphene foam anode layer. The starting graphene material is selected from graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, and/or chemically functionalized graphene. The step (b) involves subjecting the graphene dispersion to an orientation-inducing stress. An INDEPENDENT CLAIM is included for roll-to-roll process for producing continuous-length sheet of graphene foam anode layer. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of graphene foam-protected anode active material.