Micro-sized silicon-carbon composites composed of carbon-coated sub-10 nm Si primary particles as high-performance anode materials for lithium-ion batteries

Jiangxuan Song; Shuru Chen; Mingjiong Zhou; Terrence Xu; Dongping Lv; Mikhail L. Gordin; Tianjun Long; Michael Melnyk; Donghai Wang

doi:10.1039/c3ta14100d

Micro-sized silicon-carbon composites composed of carbon-coated sub-10 nm Si primary particles as high-performance anode materials for lithium-ion batteries

Jiangxuan Song
, Shuru Chen
, Mingjiong Zhou
, Terrence Xu
, Dongping Lv
, Mikhail L. Gordin
, Tianjun Long
, Michael Melnyk
, Donghai Wang

Research output: Contribution to journal › Article › peer-review

174 Scopus citations

Abstract

We report the synthesis of micro-sized silicon-carbon (Si-C) composites, which simultaneously possess primary sub-10 nm Si particles and secondary micro-sized aggregation coated with carbon. Because of this unique structure, the as-synthesized Si-C composite anode can deliver excellent cycling stability with a high reversible specific capacity (∼1600 mA h g^-1) within 150 cycles at 400 mA g^-1. Moreover, a high volumetric capacity of ∼1088 mA h cm^-3 was demonstrated by using this composite cathode, which is 5 times higher than that of commercially available nano-silicon based anodes.

Original language	English (US)
Pages (from-to)	1257-1262
Number of pages	6
Journal	Journal of Materials Chemistry A
Volume	2
Issue number	5
DOIs	https://doi.org/10.1039/c3ta14100d
State	Published - Feb 7 2014

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

All Science Journal Classification (ASJC) codes

General Chemistry
Renewable Energy, Sustainability and the Environment
General Materials Science

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10.1039/c3ta14100d

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title = "Micro-sized silicon-carbon composites composed of carbon-coated sub-10 nm Si primary particles as high-performance anode materials for lithium-ion batteries",

abstract = "We report the synthesis of micro-sized silicon-carbon (Si-C) composites, which simultaneously possess primary sub-10 nm Si particles and secondary micro-sized aggregation coated with carbon. Because of this unique structure, the as-synthesized Si-C composite anode can deliver excellent cycling stability with a high reversible specific capacity (∼1600 mA h g-1) within 150 cycles at 400 mA g-1. Moreover, a high volumetric capacity of ∼1088 mA h cm-3 was demonstrated by using this composite cathode, which is 5 times higher than that of commercially available nano-silicon based anodes.",

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AU - Song, Jiangxuan

AU - Chen, Shuru

AU - Zhou, Mingjiong

AU - Xu, Terrence

AU - Lv, Dongping

AU - Gordin, Mikhail L.

AU - Long, Tianjun

AU - Melnyk, Michael

AU - Wang, Donghai

PY - 2014/2/7

Y1 - 2014/2/7

N2 - We report the synthesis of micro-sized silicon-carbon (Si-C) composites, which simultaneously possess primary sub-10 nm Si particles and secondary micro-sized aggregation coated with carbon. Because of this unique structure, the as-synthesized Si-C composite anode can deliver excellent cycling stability with a high reversible specific capacity (∼1600 mA h g-1) within 150 cycles at 400 mA g-1. Moreover, a high volumetric capacity of ∼1088 mA h cm-3 was demonstrated by using this composite cathode, which is 5 times higher than that of commercially available nano-silicon based anodes.

AB - We report the synthesis of micro-sized silicon-carbon (Si-C) composites, which simultaneously possess primary sub-10 nm Si particles and secondary micro-sized aggregation coated with carbon. Because of this unique structure, the as-synthesized Si-C composite anode can deliver excellent cycling stability with a high reversible specific capacity (∼1600 mA h g-1) within 150 cycles at 400 mA g-1. Moreover, a high volumetric capacity of ∼1088 mA h cm-3 was demonstrated by using this composite cathode, which is 5 times higher than that of commercially available nano-silicon based anodes.

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Micro-sized silicon-carbon composites composed of carbon-coated sub-10 nm Si primary particles as high-performance anode materials for lithium-ion batteries

Abstract

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