Preparation and characterization of silicon monoxide/graphite/carbon nanotubes composite as anode for lithium-ion batteries |
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Authors: | Yurong Ren Jianning Ding Ningyi Yuan Shuyong Jia Meizhen Qu Zuolong Yu |
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Institution: | (1) Center for Low-Dimensional Materials, Micro-nano Devices and System, Changzhou University, Changzhou, 213164, China;(2) Changzhou Institute of Chemistry, Changzhou, 213164, China;(3) Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China |
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Abstract: | Silicon monoxide/graphite/multi-walled carbon nanotubes (SiO/G/CNTs) material was prepared by ball milling followed by chemical
vapor deposition method and characterized by X-ray diffraction, scanning electron microscopy (SEM), galvanostatic charge–discharge,
and AC impedance spectroscopy, respectively. The results revealed that SiO/G/CNTs exhibited an initial specific discharge
capacity of 790 mAh g−1 with a columbic efficiency of 65%. After 100 cycles, a high reversible capacity of 495 mAh g−1 is still retained. The improved electrochemical properties were due to beneficial SEI by the SEM and EIS results. |
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