摘要
Organic molecules are attractive electrode materials for rechargeable batteries owing to their sustainability, low cost, and light weight. In this work, we report a new organic anode, a perimidin derivative 1,3,5-tri(1 H-perimidin-2-yl)-benzene(TPB), for lithium-ion batteries. The TPB structure contains multiple redox centers including π-conjugated benzene ring, C=N, and-NH groups and delivers a high reversible specific capacity of 300 mAh/g at 50 mA/g under a six-electron redox reaction. Moreover, TPB exhibits excellent rate capability and long-term cyclability with 98.1% capacity retention over 1500 cycles at 1000 mA/g. The results may open new opportunities for the development of low-cost and long-lifespan lithium-ion batteries.
作者
付浴茹
刘琴
孙传福
FU Yu-Ru;LIU Qin;SUN Chuan-Fu(CAS Key Laboratory of Design and Assembly of Functional Nanostructures,and Fujian Key Laboratory of Nanomaterials,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China;University of Chinese Academy of Sciences,Beijing 100039,China)
基金
financially supported by the National Natural Science Foundation of China(Nos.21771180,51702318)
the Natural Science Foundation of Fujian Province(No.2018J01031)。