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High performance of porous silicon/carbon/RGO network derived from rice husks as anodes for lithium-ion batteries

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Abstract

Lithium-ion batteries have drawn ever-increasing attention for application in electric vehicles owing to the high energy density and long cycle life. Herein, we report a novel porous silicon/carbon composite derived from rice husk through activation and subsequent calcinations. To consolidate the structural integrity, RGO is introduced into the porous silicon/carbon composite via ultra-sonication. The final product achieves a stable capacity of 760 mA h g−1 after 80 cycles as well as the notable rate performance of 317 mA h g−1 at 1 A g−1. The enhanced electrochemical properties are attributed to the porous structure, which provides more sites for the charge/discharge process. Meanwhile, the presence of RGO effectively improves the conductivity of the composite and conserves structural integrity. All the results have demonstrated its promising applications in LIBs.

Graphical abstract: High performance of porous silicon/carbon/RGO network derived from rice husks as anodes for lithium-ion batteries

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Publication details

The article was received on 08 Oct 2018, accepted on 27 Oct 2018 and first published on 31 Oct 2018


Article type: Paper
DOI: 10.1039/C8NJ05098H
Citation: New J. Chem., 2018, Advance Article
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    High performance of porous silicon/carbon/RGO network derived from rice husks as anodes for lithium-ion batteries

    K. Yu, H. Zhang, H. Qi, J. Liang and C. Liang, New J. Chem., 2018, Advance Article , DOI: 10.1039/C8NJ05098H

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