The rapid development of high-speed aircraft, microelectronic devices and other fields puts forward higher requirements for the thermal conductivity of thermal management materials. Graphene with excellent thermal conductivity and electrical conductivity is an ideal new generation of thermal management materials. The research status and development prospect of graphene as a high thermal conductivity material are introduced. Firstly, the preparation methods of graphene materials are summarized, including mechanical peeling, epitaxial growth, chemical vapor deposition and redox. Thermal conductivity mechanisms of different types of graphene materials are discussed. Graphene materials carry out heat conduction through phonons and electrons with phonon heat conduction being the mainstay. The thermal resistance network model and thermal conduction permeability model are discussed. The research progress and application of monolayer or less-layer graphene, graphene film, carbon nanotube/graphene composite film and phase-change polymer/graphene composite materials in the field of thermal management are summarized.

thermal management  /  graphene films  /  CNTs/graphene film  /  phase-change polymer/graphene composite