Structural and electrochemical study of Li[CrxLi(1-x)/3Mn2(1-x)/3]O2 (0 ≤ x ≤ 0.328) cathode materials

C. W. Park; S. H. Kim; K. S. Nahm; H. T. Chung; Y. S. Lee; J. H. Lee; S. Boo; J. Kim

doi:10.1016/j.jallcom.2006.01.132

Structural and electrochemical study of Li[Cr_xLi_(1-x)/3Mn_2(1-x)/3]O₂ (0 ≤ x ≤ 0.328) cathode materials

C. W. Park, S. H. Kim, K. S. Nahm, H. T. Chung, Y. S. Lee, J. H. Lee, S. Boo, J. Kim

Dept. of Materials Science & Engineering

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

32 Scopus citations

Abstract

Li[Cr_xLi_(1-x)/3Mn_2(1-x)/3]O₂ with x = 0, 0.05, 0.1 and 0.328 were synthesized by a solution method with subsequent quenching. The structures were investigated by X-ray diffraction (XRD), Rietveld refinement, electron diffraction and HRTEM. Li[Cr_xLi_(1-x)/3Mn_2(1-x)/3]O₂ (x = 0 and 0.05) and annealed Li[Li_1/3Mn_2/3]O₂ were indexed based on the monoclinic structure, while Li_1.2Cr_0.4Mn_0.4O₂ was shown to be that of a nanocomposite. Li[Cr_0.1Li_0.29Mn_0.602]O₂ material formed based on the stoichiometry in between Li[Li_1/3Mn_2/3]O₂ and Li[Cr_0.328Li_0.22Mn_0.436]O₂ showed both sides features of the monoclinic and hexagonal structures in a nanocomposite structure and provided the lack of a developed anodic peak between 4.6 and 4.9 V, a good reversible capacity of around 250 mAh/g in a discharge voltage range between 2.8 and 3.5 V.

Original language	English
Pages (from-to)	343-348
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	449
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2006.01.132
State	Published - 31 Jan 2008

Keywords

Chromium
Layered compound
Lithium batteries
Manganese
Monoclinic

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

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10.1016/j.jallcom.2006.01.132

Cite this

@article{22363248979e4846a2c4a7927b4cea27,

title = "Structural and electrochemical study of Li[CrxLi(1-x)/3Mn2(1-x)/3]O2 (0 ≤ x ≤ 0.328) cathode materials",

abstract = "Li[CrxLi(1-x)/3Mn2(1-x)/3]O2 with x = 0, 0.05, 0.1 and 0.328 were synthesized by a solution method with subsequent quenching. The structures were investigated by X-ray diffraction (XRD), Rietveld refinement, electron diffraction and HRTEM. Li[CrxLi(1-x)/3Mn2(1-x)/3]O2 (x = 0 and 0.05) and annealed Li[Li1/3Mn2/3]O2 were indexed based on the monoclinic structure, while Li1.2Cr0.4Mn0.4O2 was shown to be that of a nanocomposite. Li[Cr0.1Li0.29Mn0.602]O2 material formed based on the stoichiometry in between Li[Li1/3Mn2/3]O2 and Li[Cr0.328Li0.22Mn0.436]O2 showed both sides features of the monoclinic and hexagonal structures in a nanocomposite structure and provided the lack of a developed anodic peak between 4.6 and 4.9 V, a good reversible capacity of around 250 mAh/g in a discharge voltage range between 2.8 and 3.5 V.",

keywords = "Chromium, Layered compound, Lithium batteries, Manganese, Monoclinic",

author = "Park, \{C. W.\} and Kim, \{S. H.\} and Nahm, \{K. S.\} and Chung, \{H. T.\} and Lee, \{Y. S.\} and Lee, \{J. H.\} and S. Boo and J. Kim",

year = "2008",

month = jan,

day = "31",

doi = "10.1016/j.jallcom.2006.01.132",

language = "English",

volume = "449",

pages = "343--348",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

number = "1-2",

}

TY - JOUR

T1 - Structural and electrochemical study of Li[CrxLi(1-x)/3Mn2(1-x)/3]O2 (0 ≤ x ≤ 0.328) cathode materials

AU - Park, C. W.

AU - Kim, S. H.

AU - Nahm, K. S.

AU - Chung, H. T.

AU - Lee, Y. S.

AU - Lee, J. H.

AU - Boo, S.

AU - Kim, J.

PY - 2008/1/31

Y1 - 2008/1/31

N2 - Li[CrxLi(1-x)/3Mn2(1-x)/3]O2 with x = 0, 0.05, 0.1 and 0.328 were synthesized by a solution method with subsequent quenching. The structures were investigated by X-ray diffraction (XRD), Rietveld refinement, electron diffraction and HRTEM. Li[CrxLi(1-x)/3Mn2(1-x)/3]O2 (x = 0 and 0.05) and annealed Li[Li1/3Mn2/3]O2 were indexed based on the monoclinic structure, while Li1.2Cr0.4Mn0.4O2 was shown to be that of a nanocomposite. Li[Cr0.1Li0.29Mn0.602]O2 material formed based on the stoichiometry in between Li[Li1/3Mn2/3]O2 and Li[Cr0.328Li0.22Mn0.436]O2 showed both sides features of the monoclinic and hexagonal structures in a nanocomposite structure and provided the lack of a developed anodic peak between 4.6 and 4.9 V, a good reversible capacity of around 250 mAh/g in a discharge voltage range between 2.8 and 3.5 V.

AB - Li[CrxLi(1-x)/3Mn2(1-x)/3]O2 with x = 0, 0.05, 0.1 and 0.328 were synthesized by a solution method with subsequent quenching. The structures were investigated by X-ray diffraction (XRD), Rietveld refinement, electron diffraction and HRTEM. Li[CrxLi(1-x)/3Mn2(1-x)/3]O2 (x = 0 and 0.05) and annealed Li[Li1/3Mn2/3]O2 were indexed based on the monoclinic structure, while Li1.2Cr0.4Mn0.4O2 was shown to be that of a nanocomposite. Li[Cr0.1Li0.29Mn0.602]O2 material formed based on the stoichiometry in between Li[Li1/3Mn2/3]O2 and Li[Cr0.328Li0.22Mn0.436]O2 showed both sides features of the monoclinic and hexagonal structures in a nanocomposite structure and provided the lack of a developed anodic peak between 4.6 and 4.9 V, a good reversible capacity of around 250 mAh/g in a discharge voltage range between 2.8 and 3.5 V.

KW - Chromium

KW - Layered compound

KW - Lithium batteries

KW - Manganese

KW - Monoclinic

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