Fine cathode particles prepared by solid-state reaction method using nano-sized precursor particles

Seo Hee Ju; Hye Young Koo; Seung Kwon Hong; Eun Byul Jo; Yun Chan Kang

doi:10.1016/j.jpowsour.2007.06.243

Fine cathode particles prepared by solid-state reaction method using nano-sized precursor particles

Seo Hee Ju, Hye Young Koo, Seung Kwon Hong, Eun Byul Jo, Yun Chan Kang

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

3 Citations (Scopus)

Abstract

Fine-sized Li-Co-Mn-O cathode particles with various ratios of cobalt and manganese components were prepared by conventional solid-state reaction method using the nano-sized precursor particles. The nano-sized precursor particles of cobalt and manganese components were prepared by spray pyrolysis. The LiCo_1-xMn_xO₂ (0.1 ≤ x ≤ 0.3) particles had finer size than that of the pure LiCoO₂ particles. Manganese component disturbed the growth of the LiCo_1-xMn_xO₂ cathode particles prepared by solid-state reaction method. The initial discharge capacities of the layered LiCo_1-xMn_xO₂ (0 ≤ x ≤ 0.3) cathode particles decreased from 144 to 136 mAh g^-1 when the ratios of Co/Mn components were changed from 1/0 to 0.7/0.3. The mean sizes of the spinel LiMn_2-yCo_yO₄ (0 ≤ y ≤ 0.2) cathode particles decreased from 650 to 460 nm when the ratios of Mn/Co components were changed from 2/0 to 1.8/0.2. The initial discharge capacities of the LiMn_2-yCo_yO₄ (0 ≤ y ≤ 0.2) cathode particles decreased from 119 to 86 mAh g^-1 when the ratios of Mn/Co components were changed from 2/0 to 1.8/0.2.

Original language	English
Pages (from-to)	598-602
Number of pages	5
Journal	Journal of Power Sources
Volume	174
Issue number	2
DOIs	https://doi.org/10.1016/j.jpowsour.2007.06.243
Publication status	Published - 2007 Dec 6

Keywords

Cathode particle
Lithium cobaltate
Lithium manganate
Spray pyrolysis

ASJC Scopus subject areas

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

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Ju, S. H., Koo, H. Y., Hong, S. K., Jo, E. B., & Kang, Y. C. (2007). Fine cathode particles prepared by solid-state reaction method using nano-sized precursor particles. Journal of Power Sources, 174(2), 598-602. https://doi.org/10.1016/j.jpowsour.2007.06.243

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title = "Fine cathode particles prepared by solid-state reaction method using nano-sized precursor particles",

abstract = "Fine-sized Li-Co-Mn-O cathode particles with various ratios of cobalt and manganese components were prepared by conventional solid-state reaction method using the nano-sized precursor particles. The nano-sized precursor particles of cobalt and manganese components were prepared by spray pyrolysis. The LiCo1-xMnxO2 (0.1 ≤ x ≤ 0.3) particles had finer size than that of the pure LiCoO2 particles. Manganese component disturbed the growth of the LiCo1-xMnxO2 cathode particles prepared by solid-state reaction method. The initial discharge capacities of the layered LiCo1-xMnxO2 (0 ≤ x ≤ 0.3) cathode particles decreased from 144 to 136 mAh g-1 when the ratios of Co/Mn components were changed from 1/0 to 0.7/0.3. The mean sizes of the spinel LiMn2-yCoyO4 (0 ≤ y ≤ 0.2) cathode particles decreased from 650 to 460 nm when the ratios of Mn/Co components were changed from 2/0 to 1.8/0.2. The initial discharge capacities of the LiMn2-yCoyO4 (0 ≤ y ≤ 0.2) cathode particles decreased from 119 to 86 mAh g-1 when the ratios of Mn/Co components were changed from 2/0 to 1.8/0.2.",

keywords = "Cathode particle, Lithium cobaltate, Lithium manganate, Spray pyrolysis",

author = "Ju, {Seo Hee} and Koo, {Hye Young} and Hong, {Seung Kwon} and Jo, {Eun Byul} and Kang, {Yun Chan}",

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AU - Ju, Seo Hee

AU - Koo, Hye Young

AU - Hong, Seung Kwon

AU - Jo, Eun Byul

AU - Kang, Yun Chan

PY - 2007/12/6

Y1 - 2007/12/6

N2 - Fine-sized Li-Co-Mn-O cathode particles with various ratios of cobalt and manganese components were prepared by conventional solid-state reaction method using the nano-sized precursor particles. The nano-sized precursor particles of cobalt and manganese components were prepared by spray pyrolysis. The LiCo1-xMnxO2 (0.1 ≤ x ≤ 0.3) particles had finer size than that of the pure LiCoO2 particles. Manganese component disturbed the growth of the LiCo1-xMnxO2 cathode particles prepared by solid-state reaction method. The initial discharge capacities of the layered LiCo1-xMnxO2 (0 ≤ x ≤ 0.3) cathode particles decreased from 144 to 136 mAh g-1 when the ratios of Co/Mn components were changed from 1/0 to 0.7/0.3. The mean sizes of the spinel LiMn2-yCoyO4 (0 ≤ y ≤ 0.2) cathode particles decreased from 650 to 460 nm when the ratios of Mn/Co components were changed from 2/0 to 1.8/0.2. The initial discharge capacities of the LiMn2-yCoyO4 (0 ≤ y ≤ 0.2) cathode particles decreased from 119 to 86 mAh g-1 when the ratios of Mn/Co components were changed from 2/0 to 1.8/0.2.

AB - Fine-sized Li-Co-Mn-O cathode particles with various ratios of cobalt and manganese components were prepared by conventional solid-state reaction method using the nano-sized precursor particles. The nano-sized precursor particles of cobalt and manganese components were prepared by spray pyrolysis. The LiCo1-xMnxO2 (0.1 ≤ x ≤ 0.3) particles had finer size than that of the pure LiCoO2 particles. Manganese component disturbed the growth of the LiCo1-xMnxO2 cathode particles prepared by solid-state reaction method. The initial discharge capacities of the layered LiCo1-xMnxO2 (0 ≤ x ≤ 0.3) cathode particles decreased from 144 to 136 mAh g-1 when the ratios of Co/Mn components were changed from 1/0 to 0.7/0.3. The mean sizes of the spinel LiMn2-yCoyO4 (0 ≤ y ≤ 0.2) cathode particles decreased from 650 to 460 nm when the ratios of Mn/Co components were changed from 2/0 to 1.8/0.2. The initial discharge capacities of the LiMn2-yCoyO4 (0 ≤ y ≤ 0.2) cathode particles decreased from 119 to 86 mAh g-1 when the ratios of Mn/Co components were changed from 2/0 to 1.8/0.2.

KW - Cathode particle

KW - Lithium cobaltate

KW - Lithium manganate

KW - Spray pyrolysis

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