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Title: High-performance silicon/carbon/graphite composites as anode materials for lithium ion batteries
Authors: Yang, X;Wen, Z;Xu, X;Lin, B;Lin, Z
subject: Anodes;Dehydration;Electrochemistry;Lithium Batteries;Silicon;Synthesis (Chemical)
Year: 2006
Publisher: Electrochemical Society, Inc. The Journal's web site is located at
Description: Silicon/carbon and silicon/carbon/graphite composites have been synthesized at room temperature using concentrated H2 S O4 as a dehydration agent. As a ductile matrix, the novel amorphous carbon obtained from the dehydration process could effectively buffer the volume change of silicon particles during discharge-charge cycling. The introduction of graphite in the silicon/carbon composite further improved the cycling performance. The composite with 30 wt % of amorphous carbon replaced by graphite demonstrated a stable capacity of 712.8 mAh g-1 and a high capacity retention ratio of 84.1% at 0.1 C over 50 cycles, suggesting it is a favorable candidate as anode material for lithium-ion batteries. © 2006 The Electrochemical Society. All rights Reserved.
Standard no: Journal of the Electrochemical Society, 2006, v. 153 n. 7, p. A1341-A1344
Appears in Collections:Department of Anatomy

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