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

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@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",

volume = "103",

pages = "154--159",

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TY - JOUR

T1 - LiMn1.95M0.05O4 (M

T2 - 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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VL - 103

SP - 154

EP - 159

JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

IS - 1

ER -

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

Abstract

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