Graphene and its macroscopic assembly multifunctional materials: Thermal properties and electromagnetic functions at elevated temperatures

The rapid development of integrated circuits in electronics, aerospace and other fields poses new challenges to the thermal diffusion and elevated-temperature electromagnetic interference shielding ability of products. Carbon-based materials are the most promising candidates for multifunctional applications due to their excellent thermal conductivity, electrical properties, light weight, flexibility and reasonable processing cost. In particular, graphene has attracted extensive attention owing to its extraordinary thermal conductivity and exceptional electrical characteristics. This paper first introduces the fundamental mechanisms of heat transfer and electromagnetic response. Specifically, we provides a comprehensive overview of recent advances in the thermal properties and thermal conductivity enhancement of graphene-related materials, analyzing the application potential of graphene macroscopic assembly materials in thermal management. Furthermore, typical studies on the temperature-dependent electromagnetic performance of graphene-based materials are reviewed. Finally, future development trends of graphene-based materials in the integrated thermal/electromagnetic management field are prospected.