Electrochemical behavior of carbon-coated silicon monoxide electrode with chromium coating in rechargeable lithium cell

Sun Woo Hwang; Jun Kyu Lee; Woo Young Yoon

doi:10.1016/j.jpowsour.2013.01.029

Electrochemical behavior of carbon-coated silicon monoxide electrode with chromium coating in rechargeable lithium cell

Sun Woo Hwang, Jun Kyu Lee, Woo Young Yoon

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

28 Citations (Scopus)

Abstract

The effects of Cr coating are studied with respect to improving the electrochemical characteristics of carbon-coated silicon monoxide anodes in rechargeable Li cells. The Cr coating is applied by ion beam sputtering. Analyses of the coating are carried out by EDX, SEM, TEM, and EPMA. A coin cell (CR2032) with a carbon-coated SiO_x anode coated with Cr and a lithium cobalt oxide (LCO) cathode is assembled in an argon-filled glove box. The charged capacity of the Cr-coated SiO_xC/LCO cell is 1127 mAh g ^-1 in the 1st cycle at 0.1 C, while that of the uncoated SiO _x-C/LCO cell is 956 mAh g^-1. In addition, the Cr-coated SiOxeC/LCO cell has a discharged capacity of 733 mAh g^-1, which is higher than that of the uncoated cell (635 mAh g^-1). Furthermore, the discharge capacity retention ratio (100th:2nd) of the Cr-coated cell is 75% while that of the uncoated cell is 69%. The rate capability of the Cr-coated cell is superior to that of the uncoated cell. Cr has good electrical conductivity, enabling more Li ions to be stored in the Cr-coated cell than in the uncoated cell. Investigations into the improved electrochemical characteristics are carried out through the analyses of impedance, voltage profile, and cycle data.

Original language	English
Pages (from-to)	620-624
Number of pages	5
Journal	Journal of Power Sources
Volume	244
DOIs	https://doi.org/10.1016/j.jpowsour.2013.01.029
Publication status	Published - 2013

Bibliographical note

Funding Information:
This study was supported by the National Research Foundation of Korea (NRF) and funded by a grant from the Korean government (MEST) ( 2011-0028757 ).

Keywords

Chromium
Ion sputtering
Lithium ion battery
Silicon monoxide

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

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

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10.1016/j.jpowsour.2013.01.029

Cite this

@article{53e6550ff25642bca05fe5e233688925,

title = "Electrochemical behavior of carbon-coated silicon monoxide electrode with chromium coating in rechargeable lithium cell",

abstract = "The effects of Cr coating are studied with respect to improving the electrochemical characteristics of carbon-coated silicon monoxide anodes in rechargeable Li cells. The Cr coating is applied by ion beam sputtering. Analyses of the coating are carried out by EDX, SEM, TEM, and EPMA. A coin cell (CR2032) with a carbon-coated SiOx anode coated with Cr and a lithium cobalt oxide (LCO) cathode is assembled in an argon-filled glove box. The charged capacity of the Cr-coated SiOxC/LCO cell is 1127 mAh g -1 in the 1st cycle at 0.1 C, while that of the uncoated SiO x-C/LCO cell is 956 mAh g-1. In addition, the Cr-coated SiOxeC/LCO cell has a discharged capacity of 733 mAh g-1, which is higher than that of the uncoated cell (635 mAh g-1). Furthermore, the discharge capacity retention ratio (100th:2nd) of the Cr-coated cell is 75% while that of the uncoated cell is 69%. The rate capability of the Cr-coated cell is superior to that of the uncoated cell. Cr has good electrical conductivity, enabling more Li ions to be stored in the Cr-coated cell than in the uncoated cell. Investigations into the improved electrochemical characteristics are carried out through the analyses of impedance, voltage profile, and cycle data.",

keywords = "Chromium, Ion sputtering, Lithium ion battery, Silicon monoxide",

author = "Hwang, {Sun Woo} and Lee, {Jun Kyu} and Yoon, {Woo Young}",

note = "Funding Information: This study was supported by the National Research Foundation of Korea (NRF) and funded by a grant from the Korean government (MEST) ( 2011-0028757 ). ",

year = "2013",

doi = "10.1016/j.jpowsour.2013.01.029",

language = "English",

volume = "244",

pages = "620--624",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Electrochemical behavior of carbon-coated silicon monoxide electrode with chromium coating in rechargeable lithium cell

AU - Hwang, Sun Woo

AU - Lee, Jun Kyu

AU - Yoon, Woo Young

N1 - Funding Information: This study was supported by the National Research Foundation of Korea (NRF) and funded by a grant from the Korean government (MEST) ( 2011-0028757 ).

PY - 2013

Y1 - 2013

N2 - The effects of Cr coating are studied with respect to improving the electrochemical characteristics of carbon-coated silicon monoxide anodes in rechargeable Li cells. The Cr coating is applied by ion beam sputtering. Analyses of the coating are carried out by EDX, SEM, TEM, and EPMA. A coin cell (CR2032) with a carbon-coated SiOx anode coated with Cr and a lithium cobalt oxide (LCO) cathode is assembled in an argon-filled glove box. The charged capacity of the Cr-coated SiOxC/LCO cell is 1127 mAh g -1 in the 1st cycle at 0.1 C, while that of the uncoated SiO x-C/LCO cell is 956 mAh g-1. In addition, the Cr-coated SiOxeC/LCO cell has a discharged capacity of 733 mAh g-1, which is higher than that of the uncoated cell (635 mAh g-1). Furthermore, the discharge capacity retention ratio (100th:2nd) of the Cr-coated cell is 75% while that of the uncoated cell is 69%. The rate capability of the Cr-coated cell is superior to that of the uncoated cell. Cr has good electrical conductivity, enabling more Li ions to be stored in the Cr-coated cell than in the uncoated cell. Investigations into the improved electrochemical characteristics are carried out through the analyses of impedance, voltage profile, and cycle data.

AB - The effects of Cr coating are studied with respect to improving the electrochemical characteristics of carbon-coated silicon monoxide anodes in rechargeable Li cells. The Cr coating is applied by ion beam sputtering. Analyses of the coating are carried out by EDX, SEM, TEM, and EPMA. A coin cell (CR2032) with a carbon-coated SiOx anode coated with Cr and a lithium cobalt oxide (LCO) cathode is assembled in an argon-filled glove box. The charged capacity of the Cr-coated SiOxC/LCO cell is 1127 mAh g -1 in the 1st cycle at 0.1 C, while that of the uncoated SiO x-C/LCO cell is 956 mAh g-1. In addition, the Cr-coated SiOxeC/LCO cell has a discharged capacity of 733 mAh g-1, which is higher than that of the uncoated cell (635 mAh g-1). Furthermore, the discharge capacity retention ratio (100th:2nd) of the Cr-coated cell is 75% while that of the uncoated cell is 69%. The rate capability of the Cr-coated cell is superior to that of the uncoated cell. Cr has good electrical conductivity, enabling more Li ions to be stored in the Cr-coated cell than in the uncoated cell. Investigations into the improved electrochemical characteristics are carried out through the analyses of impedance, voltage profile, and cycle data.

KW - Chromium

KW - Ion sputtering

KW - Lithium ion battery

KW - Silicon monoxide

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AN - SCOPUS:84886419354

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VL - 244

SP - 620

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JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

Electrochemical behavior of carbon-coated silicon monoxide electrode with chromium coating in rechargeable lithium cell

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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