Electrochemical behavior of Si nanoparticle anode coated with diamond-like carbon for lithium-ion battery

J. K. Lee; W. Y. Yoon; B. K. Kim

doi:10.1149/2.045211jes

Electrochemical behavior of Si nanoparticle anode coated with diamond-like carbon for lithium-ion battery

J. K. Lee^*
, W. Y. Yoon
, B. K. Kim

^*Corresponding author for this work

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

13 Citations (Scopus)

Abstract

Diamond-like carbon (DLC) was coated on Si nanoparticle anodes using plasma-enhanced chemical vapor deposition (PECVD). The presence of DLC was confirmed by scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDX), electron probe microanalyzer (EPMA), Raman spectroscopy, and X-ray photoelectron (XPS) spectroscopy. Cells employing the coated anodes showed good cycling performance between 0 and 1.5 V, and a capacity of 1354 mAh g^-1 was retained after 100 cycles. A comparable cell employing a Si nanoparticle anode without the DLC coating quickly lost its capacity during cycling. The electrochemical properties of cells are characterized through impedance analysis, XPS, and SEM. It was observed that the coating improved ionic conductivity, and acted as a protective buffering layer on the Si nanoparticle electrode for lithium-ion batteries.

Original language	English
Pages (from-to)	A1844-A1848
Journal	Journal of the Electrochemical Society
Volume	159
Issue number	11
DOIs	https://doi.org/10.1149/2.045211jes
Publication status	Published - 2012

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

UN SDGs

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

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10.1149/2.045211jes

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title = "Electrochemical behavior of Si nanoparticle anode coated with diamond-like carbon for lithium-ion battery",

abstract = "Diamond-like carbon (DLC) was coated on Si nanoparticle anodes using plasma-enhanced chemical vapor deposition (PECVD). The presence of DLC was confirmed by scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDX), electron probe microanalyzer (EPMA), Raman spectroscopy, and X-ray photoelectron (XPS) spectroscopy. Cells employing the coated anodes showed good cycling performance between 0 and 1.5 V, and a capacity of 1354 mAh g-1 was retained after 100 cycles. A comparable cell employing a Si nanoparticle anode without the DLC coating quickly lost its capacity during cycling. The electrochemical properties of cells are characterized through impedance analysis, XPS, and SEM. It was observed that the coating improved ionic conductivity, and acted as a protective buffering layer on the Si nanoparticle electrode for lithium-ion batteries.",

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T1 - Electrochemical behavior of Si nanoparticle anode coated with diamond-like carbon for lithium-ion battery

AU - Lee, J. K.

AU - Yoon, W. Y.

AU - Kim, B. K.

PY - 2012

Y1 - 2012

N2 - Diamond-like carbon (DLC) was coated on Si nanoparticle anodes using plasma-enhanced chemical vapor deposition (PECVD). The presence of DLC was confirmed by scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDX), electron probe microanalyzer (EPMA), Raman spectroscopy, and X-ray photoelectron (XPS) spectroscopy. Cells employing the coated anodes showed good cycling performance between 0 and 1.5 V, and a capacity of 1354 mAh g-1 was retained after 100 cycles. A comparable cell employing a Si nanoparticle anode without the DLC coating quickly lost its capacity during cycling. The electrochemical properties of cells are characterized through impedance analysis, XPS, and SEM. It was observed that the coating improved ionic conductivity, and acted as a protective buffering layer on the Si nanoparticle electrode for lithium-ion batteries.

AB - Diamond-like carbon (DLC) was coated on Si nanoparticle anodes using plasma-enhanced chemical vapor deposition (PECVD). The presence of DLC was confirmed by scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDX), electron probe microanalyzer (EPMA), Raman spectroscopy, and X-ray photoelectron (XPS) spectroscopy. Cells employing the coated anodes showed good cycling performance between 0 and 1.5 V, and a capacity of 1354 mAh g-1 was retained after 100 cycles. A comparable cell employing a Si nanoparticle anode without the DLC coating quickly lost its capacity during cycling. The electrochemical properties of cells are characterized through impedance analysis, XPS, and SEM. It was observed that the coating improved ionic conductivity, and acted as a protective buffering layer on the Si nanoparticle electrode for lithium-ion batteries.

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JF - Journal of the Electrochemical Society

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Electrochemical behavior of Si nanoparticle anode coated with diamond-like carbon for lithium-ion battery

Abstract

ASJC Scopus subject areas

UN SDGs

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