In-situ growth amorphous carbon nanotube on silicon particles as lithium-ion battery anode materials

Tingkai Zhao; Shengfei She; Xianglin Ji; Wenbo Jin; Alei Dang; Hao Li; Tiehu Li; Songmin Shang; Zhongfu Zhou

doi:10.1016/j.jallcom.2017.03.019

In-situ growth amorphous carbon nanotube on silicon particles as lithium-ion battery anode materials

Tingkai Zhao, Shengfei She, Xianglin Ji, Wenbo Jin, Alei Dang, Hao Li, Tiehu Li, Songmin Shang, Zhongfu Zhou

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

47 Citations (Scopus)

Abstract

A novel silicon core/amorphous carbon nanotube (ACNT) shell composite that can be used as lithium-ion batteries anode material was in-situ synthesized in the chemical vapor deposition (CVD) growth process. The hypothesized core/shell structure was evidenced by SEM/TEM/XRD, suggesting that the ACNTs composed of carbon clusters with short-range order and long-range disorder were successfully deposited onto the surface of the silicon particles. This Si/ACNT composite delivered a high capacity of 1496 mAh g−1at a current density of 100 mA g−1, and a superior cycling stability with 80% capacity retention after 300 cycles. This observed specific capacity improvement of Si/ACNT composite is likely attributed to the formed three-dimensional conductive networks between silicon particles and interwoven ACNTs in the composite.

Original language	English
Pages (from-to)	500-507
Number of pages	8
Journal	Journal of Alloys and Compounds
Volume	708
DOIs	https://doi.org/10.1016/j.jallcom.2017.03.019
Publication status	Published - 1 Jan 2017

Keywords

Amorphous carbon nanotubes
Chemical vapor deposition
Electrochemical properties
Electron microscopy
Silicon core-shell composite
X-ray diffraction

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

UN SDGs

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

More information

10.1016/j.jallcom.2017.03.019

Cite this

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title = "In-situ growth amorphous carbon nanotube on silicon particles as lithium-ion battery anode materials",

abstract = "A novel silicon core/amorphous carbon nanotube (ACNT) shell composite that can be used as lithium-ion batteries anode material was in-situ synthesized in the chemical vapor deposition (CVD) growth process. The hypothesized core/shell structure was evidenced by SEM/TEM/XRD, suggesting that the ACNTs composed of carbon clusters with short-range order and long-range disorder were successfully deposited onto the surface of the silicon particles. This Si/ACNT composite delivered a high capacity of 1496 mAh g−1at a current density of 100 mA g−1, and a superior cycling stability with 80% capacity retention after 300 cycles. This observed specific capacity improvement of Si/ACNT composite is likely attributed to the formed three-dimensional conductive networks between silicon particles and interwoven ACNTs in the composite.",

keywords = "Amorphous carbon nanotubes, Chemical vapor deposition, Electrochemical properties, Electron microscopy, Silicon core-shell composite, X-ray diffraction",

author = "Tingkai Zhao and Shengfei She and Xianglin Ji and Wenbo Jin and Alei Dang and Hao Li and Tiehu Li and Songmin Shang and Zhongfu Zhou",

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AU - Zhao, Tingkai

AU - She, Shengfei

AU - Ji, Xianglin

AU - Jin, Wenbo

AU - Dang, Alei

AU - Li, Hao

AU - Li, Tiehu

AU - Shang, Songmin

AU - Zhou, Zhongfu

PY - 2017/1/1

Y1 - 2017/1/1

N2 - A novel silicon core/amorphous carbon nanotube (ACNT) shell composite that can be used as lithium-ion batteries anode material was in-situ synthesized in the chemical vapor deposition (CVD) growth process. The hypothesized core/shell structure was evidenced by SEM/TEM/XRD, suggesting that the ACNTs composed of carbon clusters with short-range order and long-range disorder were successfully deposited onto the surface of the silicon particles. This Si/ACNT composite delivered a high capacity of 1496 mAh g−1at a current density of 100 mA g−1, and a superior cycling stability with 80% capacity retention after 300 cycles. This observed specific capacity improvement of Si/ACNT composite is likely attributed to the formed three-dimensional conductive networks between silicon particles and interwoven ACNTs in the composite.

AB - A novel silicon core/amorphous carbon nanotube (ACNT) shell composite that can be used as lithium-ion batteries anode material was in-situ synthesized in the chemical vapor deposition (CVD) growth process. The hypothesized core/shell structure was evidenced by SEM/TEM/XRD, suggesting that the ACNTs composed of carbon clusters with short-range order and long-range disorder were successfully deposited onto the surface of the silicon particles. This Si/ACNT composite delivered a high capacity of 1496 mAh g−1at a current density of 100 mA g−1, and a superior cycling stability with 80% capacity retention after 300 cycles. This observed specific capacity improvement of Si/ACNT composite is likely attributed to the formed three-dimensional conductive networks between silicon particles and interwoven ACNTs in the composite.

KW - Amorphous carbon nanotubes

KW - Chemical vapor deposition

KW - Electrochemical properties

KW - Electron microscopy

KW - Silicon core-shell composite

KW - X-ray diffraction

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DO - 10.1016/j.jallcom.2017.03.019

M3 - Journal article

SN - 0925-8388

VL - 708

SP - 500

EP - 507

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

In-situ growth amorphous carbon nanotube on silicon particles as lithium-ion battery anode materials

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

More information

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