Synthesis and characterization of spinel LiMn2O4 for lithium secondary battery

Serk Won Jang; Heon Young Lee; Kun Chul Shin; Sung Man Lee; Jong Ki Lee; Seung Joo Lee; Hong Koo Baik; Dong Seok Rhee

doi:10.1016/S0378-7753(00)00374-8

Synthesis and characterization of spinel LiMn₂O₄ for lithium secondary battery

Serk Won Jang, Heon Young Lee, Kun Chul Shin, Sung Man Lee, Jong Ki Lee, Seung Joo Lee, Hong Koo Baik, Dong Seok Rhee

Department of Materials Science and Engineering

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

20 Citations (Scopus)

Abstract

The preparation and characterization of spinel LiMn₂O₄ have been studied. Spinel lithium manganese oxides are prepared by a sol-gel method using LiNO₃ and Mn(CH₃COO)₂·4H₂O as starting materials in which the obtained gel is heated at various temperatures after pretreatment at 350 °C or without pretreatment in air. The LiMn₂O₄ samples prepared with pretreatment have uniform microsized particles while those obtained without pretreatment have agglomerated particles of irregular shapes. The thermal pretreatment at 350 °C improves the electrochemical behaviour in terms of discharge capacity and rate capability. The results can be correlated with an increase in lithium surface reaction sites in these materials, as inferred by this small grain size and large surface area.

Original language	English
Pages (from-to)	274-277
Number of pages	4
Journal	Journal of Power Sources
Volume	88
Issue number	2
DOIs	https://doi.org/10.1016/S0378-7753(00)00374-8
Publication status	Published - 2000 Jun

Bibliographical note

Funding Information:
This work was financially supported by the Korea Science and Engineering Foundations under contract No. 966-0300-006-2.

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)

Access to Document

10.1016/S0378-7753(00)00374-8

Cite this

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title = "Synthesis and characterization of spinel LiMn2O4 for lithium secondary battery",

abstract = "The preparation and characterization of spinel LiMn2O4 have been studied. Spinel lithium manganese oxides are prepared by a sol-gel method using LiNO3 and Mn(CH3COO)2·4H2O as starting materials in which the obtained gel is heated at various temperatures after pretreatment at 350 °C or without pretreatment in air. The LiMn2O4 samples prepared with pretreatment have uniform microsized particles while those obtained without pretreatment have agglomerated particles of irregular shapes. The thermal pretreatment at 350 °C improves the electrochemical behaviour in terms of discharge capacity and rate capability. The results can be correlated with an increase in lithium surface reaction sites in these materials, as inferred by this small grain size and large surface area.",

author = "Jang, {Serk Won} and Lee, {Heon Young} and Shin, {Kun Chul} and Lee, {Sung Man} and Lee, {Jong Ki} and Lee, {Seung Joo} and Baik, {Hong Koo} and Rhee, {Dong Seok}",

note = "Funding Information: This work was financially supported by the Korea Science and Engineering Foundations under contract No. 966-0300-006-2.",

year = "2000",

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T1 - Synthesis and characterization of spinel LiMn2O4 for lithium secondary battery

AU - Jang, Serk Won

AU - Lee, Heon Young

AU - Shin, Kun Chul

AU - Lee, Sung Man

AU - Lee, Jong Ki

AU - Lee, Seung Joo

AU - Baik, Hong Koo

AU - Rhee, Dong Seok

N1 - Funding Information: This work was financially supported by the Korea Science and Engineering Foundations under contract No. 966-0300-006-2.

PY - 2000/6

Y1 - 2000/6

N2 - The preparation and characterization of spinel LiMn2O4 have been studied. Spinel lithium manganese oxides are prepared by a sol-gel method using LiNO3 and Mn(CH3COO)2·4H2O as starting materials in which the obtained gel is heated at various temperatures after pretreatment at 350 °C or without pretreatment in air. The LiMn2O4 samples prepared with pretreatment have uniform microsized particles while those obtained without pretreatment have agglomerated particles of irregular shapes. The thermal pretreatment at 350 °C improves the electrochemical behaviour in terms of discharge capacity and rate capability. The results can be correlated with an increase in lithium surface reaction sites in these materials, as inferred by this small grain size and large surface area.

AB - The preparation and characterization of spinel LiMn2O4 have been studied. Spinel lithium manganese oxides are prepared by a sol-gel method using LiNO3 and Mn(CH3COO)2·4H2O as starting materials in which the obtained gel is heated at various temperatures after pretreatment at 350 °C or without pretreatment in air. The LiMn2O4 samples prepared with pretreatment have uniform microsized particles while those obtained without pretreatment have agglomerated particles of irregular shapes. The thermal pretreatment at 350 °C improves the electrochemical behaviour in terms of discharge capacity and rate capability. The results can be correlated with an increase in lithium surface reaction sites in these materials, as inferred by this small grain size and large surface area.

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