Graphene thermal conductivity using highly conductive isotropic cladding

A heating and cooling device for conductively heating or cooling a body, the heating and cooling device comprising:

• a thermoelectric module configured to move heat to or from a thermally conductive surface thereof in response to low voltage power applied to the thermoelectric module;
• and
• a flexible composite structure configured to conductively transfer heat between the thermoelectric module and the body, the flexible composite structure comprising:
• a graphene sheet material having a first portion thermally coupled with and overlaying the thermally conductive surface of the thermoelectric module;
• and
• a high thermal conductivity isotropic cladding abuts and is overlaying the first portion of the graphene sheet material and at least partially overlaying a second portion of the graphene sheet material outside of the first portion;
• wherein the isotropic cladding is configured to conductively transfer heat between the thermoelectric module and the first and second portions of the graphene sheet material in a direction orthogonal to a planar extent of the graphene sheet material that is abutting the high thermal conductivity isotropic cladding with a higher thermal conductivity than the graphene sheet material in said direction.