▎ 摘　　要

NOVELTY - Variable thermal resistor (10) comprises a foam member (12) a reversibly-compressible, open-pore graphene foam. It controllably varies heat transport through it by controlling a degree of compression of the graphene foam. The graphene foam is a graphene foam composite comprising an elastomeric material as a scaffold or binder for graphene. It comprises a pore size of 125-350 micron (microm) when fully uncompressed. It is produced as a graphene-foam composite comprising the material. The resistor is within a dissipation pathway coupling a heat source (14) e.g. battery and a heat sink (16). USE - Variable thermal resistor for modulating heat transport between a heat source and a heat sink based on a degree of compression of a graphene foam within the variable thermal resistors. ADVANTAGE - The variable thermal resistor is capable of providing efficient thermal management for heat sources such as batteries, in various applications such as but not limited to electronics, space applications, electric vehicles, and buildings. It has the ability to modulate heat transport between a heat source and a heat sink based on a degree of compression of a reversibly-compressible, open-pore graphene foam within the variable thermal resistors. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a system, which comprises a heat source, a heat sink, and a heat dissipation pathway for heat transport between the heat source and the heat sink, the heat dissipation pathway comprising a variable thermal resistor comprising a reversibly-compressible, open-pore graphene foam, where the variable thermal resistor is configured to controllably vary heat transport by controlling a degree of compression of the graphene foam; and (2) a method for controlling heat transport between a heat source and a heat sink, which involves controlling heat transport through a variable thermal resistor by controlling a degree of compression of a reversibly-compressible. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a variable thermal resistor and a reversibly-compressible, open-pore graphene foam. Variable thermal resistor (10) Foam member (12) Heat source (14) Heat sink (16)