Graphene will change the way of smartphone technology and telecommunications. Smartphone manufacturing companies have already researched the possibilities of graphene’s usage in fortifying Internet facilities. From high-speed data communications to the durable composite material, night vision lens, and audio technology, graphene can be said to have endless possibilities. The unique performance of graphene can be combined with Ultra-wideband (UWB) communication and low power consumption to meet the needs of the Internet and the upcoming Industry 4.0. To make graphene equipment become a key factor of the 5G development, Internet and Industry 4.0. Future mobile phones: graphene batteries. In the past, major mobile phone manufacturers relied on large-area metal backplanes and limited the maximum temperature to control mobile phone heat dissipation. As smartphones become thinner and lighter, battery heat dissipation and how to lower power consumption are bound to be the problem that should be solved.

In the year 2016, the Chalmers University of Technology in Sweden research team discovered a new method of using graphene film to cool down electronic products. By using the azide silanol amine group to enhance the graphene film, the heat dissipation efficiency was successfully increased to 76%. This research provides a new thermal management solution for electronic components, which can be used to cool down the temperature of electronic products quickly. Graphene has become the secret weapon to end the era of mobile phone lithium batteries. HUAWEI launched a new Honor Magic 2 mobile phone in 2019. Despite putting emphasis on 3D bionic photo-sensing technology, and also using graphene heat dissipation technology continually. To solve the problem of game players experiencing unsmooth gaming experience and feeling hot when holding the phone for a long time. Although HUAWEI first applied graphene technology to mobile phones, Samsung took the lead in laying out a patent based on graphene battery solutions in 2017. Samsung’s official Weibo once shared that "graphene batteries use lithium ions on the surface of graphene and it is a new energy battery developed by the characteristics of fast and large shuttle movement between the electrodes. The charging capacity is increased by 45%, and it is still stable at a high temperature of 60 degrees, and it can be fully charged in ten minutes.” It implies that Samsung has completed the research and development of graphene technology, which can be used in business within a short time. Samsung mobile phone, GalaxyNote10, used a graphene battery in 2019. It is said that it only takes 12 minutes to fully charge, which has become the selling point of Samsung's new mobile phones.

Author Professor Wei-Keng Lin Education｜Ph.D., University of Maryland Occupation｜Professor, National Tsing Hua University  Specialty｜Electronic package heat dissipation, Heat pipe, Loop heat pipes(CPL，LHP，PHP), Energy-saving design, Solar heat storage and cooling, Heat flow system, Cooling of electronic components, Two-phase flow, Heat transfer elements of artificial satellite and high-altitude flying object