Comparative studies on ZnO-coated and uncoated LiCoO2 cycled at various rates and temperatures

Seok Min Moon; Wonyoung Chang; Dongjin Byun; Joong Kee Lee

doi:10.1016/j.cap.2010.07.031

Comparative studies on ZnO-coated and uncoated LiCoO₂ cycled at various rates and temperatures

Seok Min Moon
, Wonyoung Chang
, Dongjin Byun
, Joong Kee Lee

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

9 Citations (Scopus)

Abstract

Modification by surface coating of cathode materials is one of the preferred methods to achieve improved electrochemical performance, especially at a high-charge cut-off voltage. In this study, ZnO-coated LiCoO₂ powders were prepared by plasma-enhanced chemical vapor deposition (PE-CVD). In our previous work [1], the roles of ZnO coating in the capacity retention of LiCoO₂ during high-voltage cycling in the range of 3.0 V-4.5 V and the thermal stability of the charged LiCoO₂ electrode were investigated as a function of the coating amount. This study confirms the positive effect of ZnO coating on cyclic performances of LiCoO₂, in particular at various C-rates and operating temperatures. In addition, the structural stability of the LiCoO₂ materials coated with different amount of ZnO during cycling was investigated using cyclic voltammetry.

Original language	English
Pages (from-to)	e122-e126
Journal	Current Applied Physics
Volume	10
Issue number	4 SUPPL.
DOIs	https://doi.org/10.1016/j.cap.2010.07.031
Publication status	Published - 2010 Nov

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Cathode materials
Lithium-ion batteries
Plasma-enhanced chemical vapor deposition
Structural stability
Zinc oxide coating

ASJC Scopus subject areas

General Materials Science
General Physics and Astronomy

Access to Document

10.1016/j.cap.2010.07.031

Cite this

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title = "Comparative studies on ZnO-coated and uncoated LiCoO2 cycled at various rates and temperatures",

abstract = "Modification by surface coating of cathode materials is one of the preferred methods to achieve improved electrochemical performance, especially at a high-charge cut-off voltage. In this study, ZnO-coated LiCoO2 powders were prepared by plasma-enhanced chemical vapor deposition (PE-CVD). In our previous work [1], the roles of ZnO coating in the capacity retention of LiCoO2 during high-voltage cycling in the range of 3.0 V-4.5 V and the thermal stability of the charged LiCoO2 electrode were investigated as a function of the coating amount. This study confirms the positive effect of ZnO coating on cyclic performances of LiCoO2, in particular at various C-rates and operating temperatures. In addition, the structural stability of the LiCoO2 materials coated with different amount of ZnO during cycling was investigated using cyclic voltammetry.",

keywords = "Cathode materials, Lithium-ion batteries, Plasma-enhanced chemical vapor deposition, Structural stability, Zinc oxide coating",

author = "Moon, \{Seok Min\} and Wonyoung Chang and Dongjin Byun and Lee, \{Joong Kee\}",

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doi = "10.1016/j.cap.2010.07.031",

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AU - Moon, Seok Min

AU - Chang, Wonyoung

AU - Byun, Dongjin

AU - Lee, Joong Kee

PY - 2010/11

Y1 - 2010/11

N2 - Modification by surface coating of cathode materials is one of the preferred methods to achieve improved electrochemical performance, especially at a high-charge cut-off voltage. In this study, ZnO-coated LiCoO2 powders were prepared by plasma-enhanced chemical vapor deposition (PE-CVD). In our previous work [1], the roles of ZnO coating in the capacity retention of LiCoO2 during high-voltage cycling in the range of 3.0 V-4.5 V and the thermal stability of the charged LiCoO2 electrode were investigated as a function of the coating amount. This study confirms the positive effect of ZnO coating on cyclic performances of LiCoO2, in particular at various C-rates and operating temperatures. In addition, the structural stability of the LiCoO2 materials coated with different amount of ZnO during cycling was investigated using cyclic voltammetry.

AB - Modification by surface coating of cathode materials is one of the preferred methods to achieve improved electrochemical performance, especially at a high-charge cut-off voltage. In this study, ZnO-coated LiCoO2 powders were prepared by plasma-enhanced chemical vapor deposition (PE-CVD). In our previous work [1], the roles of ZnO coating in the capacity retention of LiCoO2 during high-voltage cycling in the range of 3.0 V-4.5 V and the thermal stability of the charged LiCoO2 electrode were investigated as a function of the coating amount. This study confirms the positive effect of ZnO coating on cyclic performances of LiCoO2, in particular at various C-rates and operating temperatures. In addition, the structural stability of the LiCoO2 materials coated with different amount of ZnO during cycling was investigated using cyclic voltammetry.

KW - Cathode materials

KW - Lithium-ion batteries

KW - Plasma-enhanced chemical vapor deposition

KW - Structural stability

KW - Zinc oxide coating

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