LiMn1.95M0.05O4 (M: Al, Co, Fe, Ni, Y) cathode materials prepared by combustion synthesis

Heon Jin Choi; Ki Min Lee; June Gunn Lee

doi:10.1016/S0378-7753(01)00835-7

LiMn_1.95M_0.05O₄ (M: Al, Co, Fe, Ni, Y) cathode materials prepared by combustion synthesis

Heon Jin Choi, Ki Min Lee, June Gunn Lee

Department of Materials Science and Engineering

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

36 Citations (Scopus)

Abstract

Spinel LiMn_1.95M_0.05O₄ (M: Al, Co, Fe, Ni, or Y) is prepared by a combustion synthesis, which is a simple, rapid and cost-effective process for obtaining oxide powders. The spinel is obtained by combustion of lithium hydroxide, manganese nitrate, M-nitrates, and urea at about 280°C for 1 min. Well-defined spinel LiMn_1.95M_0.05O₄ was obtained by further heat-treatment at 800°C for 10 h. The synthesized LiMn_1.95M_0.05O₄ shows lower initial capacities, viz. 90-132 mAh/g than undoped LiMn₂O₄. The latter has an initial capacity of 146 mAh/g which fades to 100 mAh/g with cycling. On the other hand, LiMn_1.95Co_0.05O₄, LiMn_1.95Ni_0.05O₄, and LiMn_1.95Y_0.05O₄ display better cycleability than LiMn₂O₄.

Original language	English
Pages (from-to)	154-159
Number of pages	6
Journal	Journal of Power Sources
Volume	103
Issue number	1
DOIs	https://doi.org/10.1016/S0378-7753(01)00835-7
Publication status	Published - 2001 Dec 30

All Science Journal Classification (ASJC) codes

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/S0378-7753(01)00835-7

Cite this

@article{f979c458cf25448c873ea4fa81152094,

title = "LiMn1.95M0.05O4 (M: Al, Co, Fe, Ni, Y) cathode materials prepared by combustion synthesis",

abstract = "Spinel LiMn1.95M0.05O4 (M: Al, Co, Fe, Ni, or Y) is prepared by a combustion synthesis, which is a simple, rapid and cost-effective process for obtaining oxide powders. The spinel is obtained by combustion of lithium hydroxide, manganese nitrate, M-nitrates, and urea at about 280°C for 1 min. Well-defined spinel LiMn1.95M0.05O4 was obtained by further heat-treatment at 800°C for 10 h. The synthesized LiMn1.95M0.05O4 shows lower initial capacities, viz. 90-132 mAh/g than undoped LiMn2O4. The latter has an initial capacity of 146 mAh/g which fades to 100 mAh/g with cycling. On the other hand, LiMn1.95Co0.05O4, LiMn1.95Ni0.05O4, and LiMn1.95Y0.05O4 display better cycleability than LiMn2O4.",

author = "Choi, {Heon Jin} and Lee, {Ki Min} and Lee, {June Gunn}",

year = "2001",

month = dec,

day = "30",

doi = "10.1016/S0378-7753(01)00835-7",

language = "English",

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pages = "154--159",

journal = "Journal of Power Sources",

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TY - JOUR

T1 - LiMn1.95M0.05O4 (M: Al, Co, Fe, Ni, Y) cathode materials prepared by combustion synthesis

AU - Choi, Heon Jin

AU - Lee, Ki Min

AU - Lee, June Gunn

PY - 2001/12/30

Y1 - 2001/12/30

N2 - Spinel LiMn1.95M0.05O4 (M: Al, Co, Fe, Ni, or Y) is prepared by a combustion synthesis, which is a simple, rapid and cost-effective process for obtaining oxide powders. The spinel is obtained by combustion of lithium hydroxide, manganese nitrate, M-nitrates, and urea at about 280°C for 1 min. Well-defined spinel LiMn1.95M0.05O4 was obtained by further heat-treatment at 800°C for 10 h. The synthesized LiMn1.95M0.05O4 shows lower initial capacities, viz. 90-132 mAh/g than undoped LiMn2O4. The latter has an initial capacity of 146 mAh/g which fades to 100 mAh/g with cycling. On the other hand, LiMn1.95Co0.05O4, LiMn1.95Ni0.05O4, and LiMn1.95Y0.05O4 display better cycleability than LiMn2O4.

AB - Spinel LiMn1.95M0.05O4 (M: Al, Co, Fe, Ni, or Y) is prepared by a combustion synthesis, which is a simple, rapid and cost-effective process for obtaining oxide powders. The spinel is obtained by combustion of lithium hydroxide, manganese nitrate, M-nitrates, and urea at about 280°C for 1 min. Well-defined spinel LiMn1.95M0.05O4 was obtained by further heat-treatment at 800°C for 10 h. The synthesized LiMn1.95M0.05O4 shows lower initial capacities, viz. 90-132 mAh/g than undoped LiMn2O4. The latter has an initial capacity of 146 mAh/g which fades to 100 mAh/g with cycling. On the other hand, LiMn1.95Co0.05O4, LiMn1.95Ni0.05O4, and LiMn1.95Y0.05O4 display better cycleability than LiMn2O4.

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JO - Journal of Power Sources

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