Recently, the research team of Hefei University of Technology successfully prepared a high-strength, self-supporting, ultra-thin graphene film, and successfully assembled the film into an all-solid flexible supercapacitor, opening a new path for the development of next-generation flexible electronic devices. The internationally renowned academic journal Cell has documented this achievement. Connecting Terminals,Micro Connecting Terminal,Aluminum Connecting Terminals,Connecting Copper Terminal Taixing Longyi Terminals Co.,Ltd. , https://www.lycopperlugs.com
All-solid-state flexible supercapacitors provide a safe and efficient power source for wearable electronic devices and are key devices for a new generation of flexible electronic devices. However, due to the weak interface between graphene nanosheets and the lack of effective assembly methods, the development of ultra-thin, transparent, self-supporting graphene films and their use as all-solid flexible supercapacitors still faces enormous challenges. Professor Huai Ping's research team realized the preparation of advanced materials of this new grade structure by designing and optimizing the combination of micro-nano structure and enhanced interface force.
According to reports, the film consists of only two layers of graphene oxide single-layer film, the thickness is only 22 nanometers, self-supporting can be achieved without auxiliary materials, and the thickness and performance can be controlled by increasing or decreasing the number of single-layer films. . At the same time, the film has a horizontal dimension of up to centimeter, has tailorability and excellent stretchability, and is highly compatible with strong acid and alkali.
The experimental results show that the all-solid flexible supercapacitor assembled from the film has high volume capacitance value, good electromechanical stability, and exhibits excellent supercapacitor performance. The film capacitance value was retained as high as 91.4% after 7500 cycles of charge and discharge.