Amorphous silicon/carbon multilayer thin films as the anode for high rate rechargeable Li-ion batteries

Jun Wang; Yongfeng Tong; Zhuang Xu; Weihua Li; Pengxun Yan; Yip Wah Chung

doi:10.1016/j.matlet.2013.01.027

Amorphous silicon/carbon multilayer thin films as the anode for high rate rechargeable Li-ion batteries

Jun Wang^*, Yongfeng Tong, Zhuang Xu, Weihua Li, Pengxun Yan, Yip Wah Chung

^*Corresponding author for this work

Materials Science and Engineering

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

21 Scopus citations

Abstract

We have synthesized the amorphous silicon/carbon (Si/C) multilayer thin films on Cu substrate and investigated their applications as the anode for high rate rechargeable Li-ion batteries. X-ray diffraction and Raman spectrum revealed that the films were amorphous. The electrochemical evaluation was performed with constant current charge/discharge test under various loading currents in PC. The results showed a high first initial capacity of 3107 mAh g^-1 and a high first coulombic efficiency of 83% at 15C rate (60 A/g). In the following cycles, a capacity of 2000 mAh g^-1 at 30C (120 A/g) and 1500 mAh g^-1 at 60C (240 A/g) were attained with a retention of 99%. The test predicted that the Si/C multilayer thin films were a promising anode material for lithium ion batteries.

Original language	English (US)
Pages (from-to)	37-39
Number of pages	3
Journal	Materials Letters
Volume	97
DOIs	https://doi.org/10.1016/j.matlet.2013.01.027
State	Published - 2013

Funding

This work was supported by the Basic Scientific Research Business Expenses of the Central University (lzujbky-2010–86) and the Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University under award number LZUMMM2012014.

Keywords

Lithium ion battery
Microstructure
Physical vapor deposition
Si/C multilayer thin films

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

UN SDGs

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

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10.1016/j.matlet.2013.01.027

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title = "Amorphous silicon/carbon multilayer thin films as the anode for high rate rechargeable Li-ion batteries",

abstract = "We have synthesized the amorphous silicon/carbon (Si/C) multilayer thin films on Cu substrate and investigated their applications as the anode for high rate rechargeable Li-ion batteries. X-ray diffraction and Raman spectrum revealed that the films were amorphous. The electrochemical evaluation was performed with constant current charge/discharge test under various loading currents in PC. The results showed a high first initial capacity of 3107 mAh g-1 and a high first coulombic efficiency of 83% at 15C rate (60 A/g). In the following cycles, a capacity of 2000 mAh g-1 at 30C (120 A/g) and 1500 mAh g-1 at 60C (240 A/g) were attained with a retention of 99%. The test predicted that the Si/C multilayer thin films were a promising anode material for lithium ion batteries.",

keywords = "Lithium ion battery, Microstructure, Physical vapor deposition, Si/C multilayer thin films",

author = "Jun Wang and Yongfeng Tong and Zhuang Xu and Weihua Li and Pengxun Yan and Chung, {Yip Wah}",

note = "Funding Information: This work was supported by the Basic Scientific Research Business Expenses of the Central University (lzujbky-2010–86) and the Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University under award number LZUMMM2012014.",

year = "2013",

doi = "10.1016/j.matlet.2013.01.027",

language = "English (US)",

volume = "97",

pages = "37--39",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier",

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TY - JOUR

T1 - Amorphous silicon/carbon multilayer thin films as the anode for high rate rechargeable Li-ion batteries

AU - Wang, Jun

AU - Tong, Yongfeng

AU - Xu, Zhuang

AU - Li, Weihua

AU - Yan, Pengxun

AU - Chung, Yip Wah

N1 - Funding Information: This work was supported by the Basic Scientific Research Business Expenses of the Central University (lzujbky-2010–86) and the Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University under award number LZUMMM2012014.

PY - 2013

Y1 - 2013

N2 - We have synthesized the amorphous silicon/carbon (Si/C) multilayer thin films on Cu substrate and investigated their applications as the anode for high rate rechargeable Li-ion batteries. X-ray diffraction and Raman spectrum revealed that the films were amorphous. The electrochemical evaluation was performed with constant current charge/discharge test under various loading currents in PC. The results showed a high first initial capacity of 3107 mAh g-1 and a high first coulombic efficiency of 83% at 15C rate (60 A/g). In the following cycles, a capacity of 2000 mAh g-1 at 30C (120 A/g) and 1500 mAh g-1 at 60C (240 A/g) were attained with a retention of 99%. The test predicted that the Si/C multilayer thin films were a promising anode material for lithium ion batteries.

AB - We have synthesized the amorphous silicon/carbon (Si/C) multilayer thin films on Cu substrate and investigated their applications as the anode for high rate rechargeable Li-ion batteries. X-ray diffraction and Raman spectrum revealed that the films were amorphous. The electrochemical evaluation was performed with constant current charge/discharge test under various loading currents in PC. The results showed a high first initial capacity of 3107 mAh g-1 and a high first coulombic efficiency of 83% at 15C rate (60 A/g). In the following cycles, a capacity of 2000 mAh g-1 at 30C (120 A/g) and 1500 mAh g-1 at 60C (240 A/g) were attained with a retention of 99%. The test predicted that the Si/C multilayer thin films were a promising anode material for lithium ion batteries.

KW - Lithium ion battery

KW - Microstructure

KW - Physical vapor deposition

KW - Si/C multilayer thin films

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JO - Materials Letters

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Amorphous silicon/carbon multilayer thin films as the anode for high rate rechargeable Li-ion batteries

Abstract

Funding

Keywords

ASJC Scopus subject areas

UN SDGs

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