Powder property and electrochemical characterization of Li2MnO3 material

Sang Ho Park; Yuichi Sato; Jae Koo K. Kim; Yun Sung Lee

doi:10.1016/j.matchemphys.2006.12.008

Powder property and electrochemical characterization of Li₂MnO₃ material

Sang Ho Park
, Yuichi Sato
, Jae Koo K. Kim
, Yun Sung Lee^*

^*Corresponding author for this work

Division of Chemical Engineering

Argonne National Laboratory
Kanagawa University
Chonnam National University

Research output: Contribution to journal › Journal article › peer-review

104 Scopus citations

Abstract

Li₂MnO₃ materials were synthesized at various calcination temperatures by the conventional solid state reaction. The Li₂MnO₃ powders were characterized by means of XRD, SEM, and TEM analyses. The particle properties of the Li₂MnO₃ powders, such as their surface morphology and oxygen content, as well as their electrochemical behaviors varied according to the calcinations temperatures. The discharge capacities of the Li/Li₂MnO₃ cells decreased with increasing calcination temperatures. The resulting Li₂MnO₃ material was mainly composed of Li₂MnO₃, sub-LiMnO₂, and sub-LiMn₂O₄ phases. The unexpected reversible discharge capacity of Li/Li₂MnO₃ cell fabricated in this study originated from the phase transformation between layered LiMnO₂ and cubic LiMn₂O₄ phases in this material.

Original language	English
Pages (from-to)	225-230
Number of pages	6
Journal	Materials Chemistry and Physics
Volume	102
Issue number	2-3
DOIs	https://doi.org/10.1016/j.matchemphys.2006.12.008
State	Published - 2007.04.15

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Cathode materials
Electrochemical properties
LiMnO
Phase transformation

Access to Document

10.1016/j.matchemphys.2006.12.008

Cite this

@article{ac79225c5483477189b80068ceff8084,

title = "Powder property and electrochemical characterization of Li2MnO3 material",

abstract = "Li2MnO3 materials were synthesized at various calcination temperatures by the conventional solid state reaction. The Li2MnO3 powders were characterized by means of XRD, SEM, and TEM analyses. The particle properties of the Li2MnO3 powders, such as their surface morphology and oxygen content, as well as their electrochemical behaviors varied according to the calcinations temperatures. The discharge capacities of the Li/Li2MnO3 cells decreased with increasing calcination temperatures. The resulting Li2MnO3 material was mainly composed of Li2MnO3, sub-LiMnO2, and sub-LiMn2O4 phases. The unexpected reversible discharge capacity of Li/Li2MnO3 cell fabricated in this study originated from the phase transformation between layered LiMnO2 and cubic LiMn2O4 phases in this material.",

keywords = "Cathode materials, Electrochemical properties, LiMnO, Phase transformation",

author = "Park, \{Sang Ho\} and Yuichi Sato and Kim, \{Jae Koo K.\} and Lee, \{Yun Sung\}",

year = "2007",

month = apr,

day = "15",

doi = "10.1016/j.matchemphys.2006.12.008",

language = "English",

volume = "102",

pages = "225--230",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

number = "2-3",

}

TY - JOUR

T1 - Powder property and electrochemical characterization of Li2MnO3 material

AU - Park, Sang Ho

AU - Sato, Yuichi

AU - Kim, Jae Koo K.

AU - Lee, Yun Sung

PY - 2007/4/15

Y1 - 2007/4/15

N2 - Li2MnO3 materials were synthesized at various calcination temperatures by the conventional solid state reaction. The Li2MnO3 powders were characterized by means of XRD, SEM, and TEM analyses. The particle properties of the Li2MnO3 powders, such as their surface morphology and oxygen content, as well as their electrochemical behaviors varied according to the calcinations temperatures. The discharge capacities of the Li/Li2MnO3 cells decreased with increasing calcination temperatures. The resulting Li2MnO3 material was mainly composed of Li2MnO3, sub-LiMnO2, and sub-LiMn2O4 phases. The unexpected reversible discharge capacity of Li/Li2MnO3 cell fabricated in this study originated from the phase transformation between layered LiMnO2 and cubic LiMn2O4 phases in this material.

AB - Li2MnO3 materials were synthesized at various calcination temperatures by the conventional solid state reaction. The Li2MnO3 powders were characterized by means of XRD, SEM, and TEM analyses. The particle properties of the Li2MnO3 powders, such as their surface morphology and oxygen content, as well as their electrochemical behaviors varied according to the calcinations temperatures. The discharge capacities of the Li/Li2MnO3 cells decreased with increasing calcination temperatures. The resulting Li2MnO3 material was mainly composed of Li2MnO3, sub-LiMnO2, and sub-LiMn2O4 phases. The unexpected reversible discharge capacity of Li/Li2MnO3 cell fabricated in this study originated from the phase transformation between layered LiMnO2 and cubic LiMn2O4 phases in this material.

KW - Cathode materials

KW - Electrochemical properties

KW - LiMnO

KW - Phase transformation

UR - https://www.scopus.com/pages/publications/33847642134

U2 - 10.1016/j.matchemphys.2006.12.008

DO - 10.1016/j.matchemphys.2006.12.008

M3 - Journal article

AN - SCOPUS:33847642134

SN - 0254-0584

VL - 102

SP - 225

EP - 230

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 2-3

ER -