Application and Prospects of Graphene in Energy Storage
ZHANG Li, WANG Haigang, GUO Tingting, ZHANG Meng, MA Lin, WANG Han, XU Chao
Institute of Thermal Power Generation Technology, China Datang Corporation Science and Technological Research Institute, Shijingshan District, Beijing 100043, China
Graphene is a two-dimensional material with excellent mechanical properties, electrical properties and thermal conductivity, which can improve energy utilization and is an effective boost for the development of new energy and smart grids. The development status of the graphene industry and its advantages and disadvantages as energy storage materials are introduced. The application of graphene materials in the field of lithium-ion batteries and supercapacitors and the current status of graphene preparation technology are mainly discussed. On this basis, the application prospect of graphene in the field of energy storage is prospected. Graphene's large-scale preparation technology, process equipment and product quality have achieved staged breakthroughs. However, the maturity of graphene's large-scale preparation technology is still relatively low, and there are common problems of different quality and properties of different batches of graphene products. Coal-made graphene has already achieved engineering applications. Different application scenarios have different requirements on the structure and performance of graphene. Targeted research can be done for different requirements to develop graphene materials suitable for specific application scenarios. The research on the electrochemical characteristics of coal-made graphene electrode materials and the coal-made graphene-based lithium-ion batteries and supercapacitors are another important direction for future research.
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