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Title: Investigations of Si Thin Films as Anode of Lithium-Ion Batteries

Abstract

Amorphous silicon thin films having various thicknesses were investigated as a negative electrode material for lithium-ion batteries. Electrochemical characterization of the 20 nm thick thin silicon film revealed a very low first cycle Coulombic efficiency, which can be attributed to the silicon oxide layer formed on both the surface of the as-deposited Si thin film and the interface between the Si and the substrate. Among the investigated films, the 100 nm Si thin film demonstrated the best performance in terms of first cycle efficiency and cycle life. Observations from scanning electron microscopy demonstrated that the generation of cracks was inevitable in the cycled Si thin films, even as the thickness of the film was as little as 20 nm, which was not predicted by previous modeling work. However, the cycling performance of the 20 and 100 nm silicon thin films was not detrimentally affected by these cracks. Lastly, the poor capacity retention of the 1 mu m silicon thin film was attributed to the delamination.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3];  [4];  [3]; ORCiD logo [3];  [3]; ORCiD logo [3]
  1. Western Michigan Univ., Kalamazoo MI (United States). Dept. of Chemical and Paper Engineering
  2. Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Science and Engineering Division
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1426216
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 10; Journal Issue: 4; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE; SEM; cycle life; first cycle efficiency; lithium ion battery; silicon; thin film

Citation Formats

Wu, Qingliu, Shi, Bing, Bareño, Javier, Liu, Yuzi, Maroni, Victor A., Zhai, Dengyun, Dees, Dennis W., and Lu, Wenquan. Investigations of Si Thin Films as Anode of Lithium-Ion Batteries. United States: N. p., 2018. Web. doi:10.1021/acsami.7b13980.
Wu, Qingliu, Shi, Bing, Bareño, Javier, Liu, Yuzi, Maroni, Victor A., Zhai, Dengyun, Dees, Dennis W., & Lu, Wenquan. Investigations of Si Thin Films as Anode of Lithium-Ion Batteries. United States. https://doi.org/10.1021/acsami.7b13980
Wu, Qingliu, Shi, Bing, Bareño, Javier, Liu, Yuzi, Maroni, Victor A., Zhai, Dengyun, Dees, Dennis W., and Lu, Wenquan. Wed . "Investigations of Si Thin Films as Anode of Lithium-Ion Batteries". United States. https://doi.org/10.1021/acsami.7b13980. https://www.osti.gov/servlets/purl/1426216.
@article{osti_1426216,
title = {Investigations of Si Thin Films as Anode of Lithium-Ion Batteries},
author = {Wu, Qingliu and Shi, Bing and Bareño, Javier and Liu, Yuzi and Maroni, Victor A. and Zhai, Dengyun and Dees, Dennis W. and Lu, Wenquan},
abstractNote = {Amorphous silicon thin films having various thicknesses were investigated as a negative electrode material for lithium-ion batteries. Electrochemical characterization of the 20 nm thick thin silicon film revealed a very low first cycle Coulombic efficiency, which can be attributed to the silicon oxide layer formed on both the surface of the as-deposited Si thin film and the interface between the Si and the substrate. Among the investigated films, the 100 nm Si thin film demonstrated the best performance in terms of first cycle efficiency and cycle life. Observations from scanning electron microscopy demonstrated that the generation of cracks was inevitable in the cycled Si thin films, even as the thickness of the film was as little as 20 nm, which was not predicted by previous modeling work. However, the cycling performance of the 20 and 100 nm silicon thin films was not detrimentally affected by these cracks. Lastly, the poor capacity retention of the 1 mu m silicon thin film was attributed to the delamination.},
doi = {10.1021/acsami.7b13980},
journal = {ACS Applied Materials and Interfaces},
number = 4,
volume = 10,
place = {United States},
year = {Wed Jan 03 00:00:00 EST 2018},
month = {Wed Jan 03 00:00:00 EST 2018}
}

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Cited by: 29 works
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Figures / Tables:

Figure 1. Figure 1.: XRD patterns (A) of (a) Cu foil substrate only, as-deposited (b) 20 nm Si, (c) 100 nm Si, and (d) 1 μm Si on Cu foil substrate. Raman spectra (B) of 20 nm and 1 μm Si film on Cu. Cross-sectional TEM image (C) of as-deposited 100 nmmore » Si film on Cu.« less

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Works referenced in this record:

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Works referencing / citing this record:

Computational investigation of a promising Si–Cu anode material
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Morphological and structural evolution of Si-Cu nanocomposites by an instantaneous vapor-liquid-solid growth and the electrochemical lithiation/delithiation performances
journal, January 2019

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  • Journal of Solid State Electrochemistry, Vol. 23, Issue 3
  • DOI: 10.1007/s10008-018-04173-6

Computer Test of a New Silicene Anode for Lithium‐Ion Batteries
journal, January 2019


Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.