Enhanced cycling properties of carbon-coated SnO2-Co3O4 composite nanowires for lithium-ion batteries

Bon Ryul Koo; Dae Hyeok Lee; Hyo Jin Ahn; Yung Eun Sung

doi:10.1166/jnn.2016.13194

Enhanced cycling properties of carbon-coated SnO₂-Co₃O₄ composite nanowires for lithium-ion batteries

Bon Ryul Koo
, Dae Hyeok Lee
, Hyo Jin Ahn
, Yung Eun Sung

Dept. of Materials Science & Engineering

Seoul National University of Science and Technology (SNUST)
Seoul National University

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

5 Scopus citations

Abstract

Carbon-coated SnO₂-Co₃O₄ composite nanowires (NWs) are synthesized to improve the cycling properties of lithium-ion batteries, using electrospinning followed by carbonization using a dopamine precursor. These carbon-coated composite NWs show excellent capacity retention (∼542 mAh/g; 50 cycles) compared to bare SnO₂ NWs (∼101 mAh/g; 50 cycles) and SnO₂-Co₃O₄ composite NWs (∼323 mAh/g; 50 cycles). The performance improvement is due to the combined effects of the composite structure of SnO₂ and Co₃O₄ producing the enhanced capacity retention in the NW core region and the carbon coating in the shell region hindering large volume expansion-contraction of the electrode.

Original language	English
Pages (from-to)	10558-10562
Number of pages	5
Journal	Journal of Nanoscience and Nanotechnology
Volume	16
Issue number	10
DOIs	https://doi.org/10.1166/jnn.2016.13194
State	Published - Oct 2016

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Composite nanostructure
Electrochemical performance
Lithium-ion batteries
SnO

Access to Document

10.1166/jnn.2016.13194

Cite this

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title = "Enhanced cycling properties of carbon-coated SnO2-Co3O4 composite nanowires for lithium-ion batteries",

abstract = "Carbon-coated SnO2-Co3O4 composite nanowires (NWs) are synthesized to improve the cycling properties of lithium-ion batteries, using electrospinning followed by carbonization using a dopamine precursor. These carbon-coated composite NWs show excellent capacity retention (∼542 mAh/g; 50 cycles) compared to bare SnO2 NWs (∼101 mAh/g; 50 cycles) and SnO2-Co3O4 composite NWs (∼323 mAh/g; 50 cycles). The performance improvement is due to the combined effects of the composite structure of SnO2 and Co3O4 producing the enhanced capacity retention in the NW core region and the carbon coating in the shell region hindering large volume expansion-contraction of the electrode.",

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AU - Koo, Bon Ryul

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AU - Sung, Yung Eun

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AB - Carbon-coated SnO2-Co3O4 composite nanowires (NWs) are synthesized to improve the cycling properties of lithium-ion batteries, using electrospinning followed by carbonization using a dopamine precursor. These carbon-coated composite NWs show excellent capacity retention (∼542 mAh/g; 50 cycles) compared to bare SnO2 NWs (∼101 mAh/g; 50 cycles) and SnO2-Co3O4 composite NWs (∼323 mAh/g; 50 cycles). The performance improvement is due to the combined effects of the composite structure of SnO2 and Co3O4 producing the enhanced capacity retention in the NW core region and the carbon coating in the shell region hindering large volume expansion-contraction of the electrode.

KW - Composite nanostructure

KW - Electrochemical performance

KW - Lithium-ion batteries

KW - SnO

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