The Application of Graphene Thermal Conductive Materials in Heat Dissipation

Overview: Graphene thermal conductive materials have excellent application prospects and an unparalleled position in the industrial field, earning the title of “King of New Materials.”

Application of Graphene Thermal Conductive Materials in Heat Dissipation

Graphene thermal conductive materials are known for their excellent application prospects and unparalleled industrial position, earning the title of “King of New Materials.” Currently, the research and development direction of the graphene industry is focused on meeting the demands of strategic emerging industries such as next-generation display devices, healthcare, environmental protection, and high-end manufacturing. Expanding its application in heat conduction and dissipation is a key area.

1. Importance of Thermal Management in Electronic Components

The thermal management of electronic components is crucial for the development of an information-driven and intelligent society. The rapid development of information technology has significantly increased the power consumption of chips, making thermal management a vital core component. The rate of heat transfer determines whether a chip can function properly. High thermal conductivity heat dissipation films are key materials for achieving efficient thermal management. According to authoritative market research, the global market for thermal interface materials is projected to reach $1.343 billion by 2022. Therefore, developing high-performance, low-cost heat dissipation film materials has become critical for future consumer electronics, information technology, and even artificial intelligence.

2. Graphene Heat Dissipation Films

• Smartphone Heat Dissipation: Heat dissipation in smartphones has always been a significant challenge. Currently, the mainstream method of heat dissipation inside smartphones is graphite. Graphite heat sinks work by distributing the heat from the phone’s hot spots across a larger area for even dissipation. Some metal-bodied smartphones also incorporate metal backplates for additional heat dissipation. However, when the phone’s temperature exceeds the usual standard, issues like lagging and slow response occur. Manufacturers have tried using large metal backplates to limit the maximum temperature and control the phone’s temperature, but the results have not been ideal.
• Graphene vs. Graphite: Despite the similar names, the actual performance of graphene heat dissipation technology and graphite heat dissipation is vastly different. Graphene boasts a thermal conductivity of 5300W/(m·K), the highest known thermal conductivity, far surpassing that of currently available commercial graphite heat dissipation sheets. Therefore, graphene is an excellent heat dissipation material for smartphones and other electronic products.
• Current Heat Dissipation Films: Existing smartphone heat dissipation films are mainly made from artificial graphite films formed by carbonizing and graphitizing polyimide (PI) films at high temperatures. This production process is complex and expensive, with high-quality PI films and artificial graphite film production technologies still controlled by the US, Japan, and other countries. In contrast, graphene heat dissipation films offer significant advantages, including easy-to-control processes, low cost, and environmental friendliness. However, there are no mature products on the market for graphene heat dissipation films yet.