On the 22nd, the reporter learned from the Institute of Bioenergy and Process of the Chinese Academy of Sciences that under the guidance of Li Yuliang, an academician of the Chinese Academy of Sciences, the carbon-based materials and energy application research group led by Researcher Huang Changshui of the Qingdao Energy Institute designed and synthesized the first two-dimensional graphene Carbon materials, used in the negative electrode of lithium ion batteries, show excellent electrochemical energy storage performance. Related results have been published online in "Energy and Environmental Science". With the development of wearable smart devices and implantable medical devices, flexible batteries with high energy density, power density, and long cycle life have become a research hotspot in recent years. Due to its unique structural advantages, two-dimensional materials have become ideal flexible electrode materials. However, the currently known two-dimensional electrode materials often have dense atomic arrangements, which makes the transport of lithium ions between layers encounter greater steric hindrance, resulting in lower power density and energy density. The research group prepared graphyne, nitrogen-doped graphyne, and graphene supported iron on different substrates. Researchers have successfully introduced fluorine atoms into the graphene structure and prepared new carbon-based flexible electrode materials, which can greatly promote the development of flexible batteries for smart devices. Through the substitution of fluorine, the pores of the graphene molecules are enlarged to have excellent ion transmission channels; at the same time, the basic framework of graphene and the conjugated system in the two-dimensional planar structure are retained, so that the material has excellent conductivity and current carrying Sub-transmission characteristics; especially the carbon-fluorine bond has excellent cycle lithium storage capacity, not only increases the lithium storage site of the material, but also has good compatibility with the electrolyte, which can greatly reduce the interface impedance and thus improve Cyclic stability. This achievement provides research ideas for the preparation of flexible electrode materials with large area and excellent performance by the solution method, and opens a new direction for the research of electrode materials for new energy storage devices. (Reporter Wang Jiangao correspondent Liu Jia Kong Fengru) Cotton Fleece,Cotton Voile,E-Liquid Cotton,Pure Cotton QD Cloudy Inernational Pre Ltd , https://www.qdcloudy.com