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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)|
|Publisher:||Electrochemical Society, Inc. The Journal's web site is located at http://ojps.aip.org/JES|
|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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