Reduced graphene oxide supported tin oxide-boron oxide flexible paper anodes for Li-ion batteries

Authors : Hilal KÖSE, Şeyma DOMBAYCIOĞLU, Hatem AKBULUT, Ali Osman AYDIN

Pages : 1244-1257

View : 30 | Download : 5

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Freestanding tin oxide-boron oxide/reduced graphene oxide insert ignore into journalissuearticles values(SnO$_{2}$-B$_{2}$O$_{3}$/rGO); nanocomposite anode was produced for Li-ion cells. This binder-free flexible paper anode structure was fabricated by combining SnO$_{2}$-B$_{2}$O$_{3}$ composite and graphene oxide which were synthesized through the sol-gel method and Hummers` method, respectively. Field emission gun scanning electron microscopy, high-resolution transmission electron microscopy, energy dispersive X-ray spectrometer, Fourier transform infrared spectroscopy, Raman spectroscopy, and X-ray diffraction were utilized to characterize anode materials. The Williamson-Hall insert ignore into journalissuearticles values(W-H); analysis was applied using XRD data to determine crystal size and strain of the lattice. Electrochemical tests, cyclic voltammetry, and electrochemical impedance spectroscopy measurements were performed to determine electrochemical properties of the anodes. The results indicated that the anode formed with SnO$_{2}$-B$_{2}$O$_{3\, }$particles anchored on the rGO layers provided higher discharge capacity insert ignore into journalissuearticles values(838 mAh g$^{-1});$ than that of SnO$_{2}$/rGO insert ignore into journalissuearticles values(395 mAh g$^{-1});$ after 100 cycles. The electron-deficient nature of boron supplied an effective increase in electrochemical energy storage performance.
Keywords : Binder free paper anodes, SnO 2 B 2 O 3 rGO nanocomposites, Li ion battery, electrochemical characterization