Continuous composition spread and electrochemical studies of low cobalt content Li(Ni,Mn,Co)O2 cathode materials

Jong Seok Jung; Haena Yim; Narendra Singh Parmar; Jae Seung Lee; Ji Won Choi

doi:10.3390/coatings9060348

Continuous composition spread and electrochemical studies of low cobalt content Li(Ni,Mn,Co)O₂ cathode materials

Jong Seok Jung, Haena Yim, Narendra Singh Parmar, Jae Seung Lee, Ji Won Choi

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

4 Citations (Scopus)

Abstract

Many scientific efforts have been undertaken toward reducing the Co content in LiMn_1/3Ni_1/3Co_1/3O₂ cathode materials for thin-film batteries. In this study, we present cathodes with a wide range of Li(Ni, Mn, Co)O₂ compositions to determine the material with the best electrochemical performance by changing the ratio of Ni to Mn at a fixed 0.1 at.% of Co by the continuous composition spread sputtering method. The cathode composition measurements by Rutherford backscattering spectroscopy show that the best electrochemical performance is obtained for a composition of Ni:Mn:Co = 19:71:10. The reasons for this improved electrochemical performance are further investigated by X-ray diffraction, electrochemical impedance spectroscopy, Fourier-transform infrared spectroscopy, and X-ray absorption near edge spectroscopy.

Original language	English
Article number	358
Journal	Coatings
Volume	9
Issue number	6
DOIs	https://doi.org/10.3390/coatings9060348
Publication status	Published - 2019 Jun 1

Bibliographical note

Funding Information:
ReferencesFunding: This research was supported by the KIST Future Resource Program (2E29400), and the Brain Korea 21

Funding Information:
This research was supported by the KIST Future Resource Program (2E29400), and the Brain Korea 21 Plus Project

Publisher Copyright:
© 2019 by the authors.

Keywords

Continuous composition spread
Li(Ni; Mn; Co)O cathode
Low cobalt content
Thin film
X-ray near edge spectroscopy

ASJC Scopus subject areas

Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.3390/coatings9060348

Cite this

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title = "Continuous composition spread and electrochemical studies of low cobalt content Li(Ni,Mn,Co)O2 cathode materials",

abstract = "Many scientific efforts have been undertaken toward reducing the Co content in LiMn1/3Ni1/3Co1/3O2 cathode materials for thin-film batteries. In this study, we present cathodes with a wide range of Li(Ni, Mn, Co)O2 compositions to determine the material with the best electrochemical performance by changing the ratio of Ni to Mn at a fixed 0.1 at.% of Co by the continuous composition spread sputtering method. The cathode composition measurements by Rutherford backscattering spectroscopy show that the best electrochemical performance is obtained for a composition of Ni:Mn:Co = 19:71:10. The reasons for this improved electrochemical performance are further investigated by X-ray diffraction, electrochemical impedance spectroscopy, Fourier-transform infrared spectroscopy, and X-ray absorption near edge spectroscopy.",

keywords = "Continuous composition spread, Li(Ni; Mn; Co)O cathode, Low cobalt content, Thin film, X-ray near edge spectroscopy",

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note = "Funding Information: ReferencesFunding: This research was supported by the KIST Future Resource Program (2E29400), and the Brain Korea 21 Funding Information: This research was supported by the KIST Future Resource Program (2E29400), and the Brain Korea 21 Plus Project Publisher Copyright: {\textcopyright} 2019 by the authors.",

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AU - Jung, Jong Seok

AU - Yim, Haena

AU - Parmar, Narendra Singh

AU - Lee, Jae Seung

AU - Choi, Ji Won

N1 - Funding Information: ReferencesFunding: This research was supported by the KIST Future Resource Program (2E29400), and the Brain Korea 21 Funding Information: This research was supported by the KIST Future Resource Program (2E29400), and the Brain Korea 21 Plus Project Publisher Copyright: © 2019 by the authors.

PY - 2019/6/1

Y1 - 2019/6/1

N2 - Many scientific efforts have been undertaken toward reducing the Co content in LiMn1/3Ni1/3Co1/3O2 cathode materials for thin-film batteries. In this study, we present cathodes with a wide range of Li(Ni, Mn, Co)O2 compositions to determine the material with the best electrochemical performance by changing the ratio of Ni to Mn at a fixed 0.1 at.% of Co by the continuous composition spread sputtering method. The cathode composition measurements by Rutherford backscattering spectroscopy show that the best electrochemical performance is obtained for a composition of Ni:Mn:Co = 19:71:10. The reasons for this improved electrochemical performance are further investigated by X-ray diffraction, electrochemical impedance spectroscopy, Fourier-transform infrared spectroscopy, and X-ray absorption near edge spectroscopy.

AB - Many scientific efforts have been undertaken toward reducing the Co content in LiMn1/3Ni1/3Co1/3O2 cathode materials for thin-film batteries. In this study, we present cathodes with a wide range of Li(Ni, Mn, Co)O2 compositions to determine the material with the best electrochemical performance by changing the ratio of Ni to Mn at a fixed 0.1 at.% of Co by the continuous composition spread sputtering method. The cathode composition measurements by Rutherford backscattering spectroscopy show that the best electrochemical performance is obtained for a composition of Ni:Mn:Co = 19:71:10. The reasons for this improved electrochemical performance are further investigated by X-ray diffraction, electrochemical impedance spectroscopy, Fourier-transform infrared spectroscopy, and X-ray absorption near edge spectroscopy.

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