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Li, Synthesis of porous Si/graphite/carbon composites as a practical high-capacity anode for lithium-ion batteries. Chen, Ultrafine Si/C-graphite composite anode materials with improved cyclic performance. Zhao, Effect of pyrolytic polyacrylonitrile on electrochemical performance of Si/graphite composite anode for lithium-ion batteries. Park, Amorphous silicon dioxide-based composites for high-performance Li-ion battery anodes. Im, The effect of mild activation on the electrochemical performance of pitch-coated graphite for the lithium-ion battery anode material. Dasgupta, Enabling 6C fast charging of Li-ion batteries with graphite/hard carbon hybrid anodes. Wen, Preparation and electrochemical properties of high capacity silicon-based composites for lithium-ion batteries.
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Zheng, Controllable synthesis Honeycomb-like structure SiOx/C composites as anode for high-performance lithium-ion batteries. Pang, Porous pyrrhotite Fe 7S 8 nanowire/SiO x/nitrogen-doped carbon matrix for high-performance Li-ion-battery anodes. The specific capacity of the silica/graphite anode material could be stabilized at approximately 450 mAh g −1 after 300 cycles at a current density of 100 mA g −1, resulting in stable lithium storage due to the synergistic effect between the silica and graphite. This structure not only strengthened the bonding of Si–O–C but also improved the composition of the solid-electrolyte interphase.
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The results showed that amorphous silica microspheres were embedded in the graphite matrix. The electrochemical properties of silica/graphite materials were investigated by galvanostatic charge–discharge, cyclic voltammetry and electrochemical impedance spectroscopy techniques. The morphology and structure of silica/graphite anode materials were examined by SEM, XRD, and XPS techniques. In this study, a silica/graphite anode material was synthesized in situ via a hydrolysis-calcination route using ethyl orthosilicate as the silicon source. The cycling stability and rate performance of anode materials should be increased to meet the demands for automotive power batteries with a long-life and fast charging capability.