▎ 摘　　要

NOVELTY - The method involves forming a layer of an aggregate or cluster of multiple oriented/aligned graphene sheets (304) that are substantially parallel to one another. The graphene sheets are carticle of claim 11, wherein the secant modulus machine direction 17,000 and about 26,500 psi. article of claim wherein theombined with a rubber or elastomer to form an elastomer/rubber-impregnated aggregate/cluster of multiple oriented/aligned graphene sheets in such a manner that the rubber or elastomer chains fill in a gap or defect between graphene sheets and/or chemically bond to graphene sheets or the graphene sheets are dispersed in a matrix containing elastomer or rubber. The elastomer or rubber is in an amount from 0.001-20 wt.% based on the total heat spreader film weight. The elastic heat spreader film has a fully recoverable tensile elastic strain from 2-100% and an in-plane thermal conductivity from 200-1,750 W/mK. USE - Method for producing elastic heat spreader film. ADVANTAGE - A high elasticity characteristic enables the heat spreader film to be bent or fold back and forth tens of thousands of times without significantly degrading the thermal conductivity. The method ensures compression or roll-pressing the layer of graphene sheets to reduce the thickness of the layer and to improve orientation of the graphene sheets. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view illustrating a compressing and consolidating operation for forming a layer of highly oriented graphene sheets, which are aligned parallel to the bottom plane or perpendicular to the layer thickness direction. Chamber mold cavity cell (302) Graphene sheets (304) Liquid (306) Piston (308) Small channels (310)