skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Electrochemical properties and synthesis of LiAl{sub 0.05}Mn{sub 1.95}O{sub 3.95}F{sub 0.05} by a solution-based gel method for lithium secondary battery

Abstract

The cathode materials, LiMn{sub 2}O{sub 4}, LiAl{sub 0.05}Mn{sub 1.95}O{sub 4} and LiAl{sub 0.05}Mn{sub 1.95}O{sub 3.95}F{sub 0.05} were firstly prepared by a simple solution-based gel method using the mixture of acetate and ethanol as the chelating agent. The synthesized samples were investigated by X-ray diffraction, scanning electronic microscope and differential and thermal analysis. The as-prepared powders were used as positive materials for lithium-ion battery, whose discharge capacity and cycle voltammogram properties were examined. The results revealed that LiAl{sub 0.05}Mn{sub 1.95}O{sub 3.95}F{sub 0.05} synthesized by the solution-based gel method had higher initial capacity than LiAl{sub 0.05}Mn{sub 1.95}O{sub 4} and better capacity retention rate (92%) than that of LiAl{sub 0.05}Mn{sub 1.95}O{sub 4} and LiMn{sub 2}O{sub 4}, which revealed that Al and F dual-doped LiMn{sub 2}O{sub 4} could gain better electrochemical properties of LiMn{sub 2}O{sub 4} than only the Al-doped LiMn{sub 2}O{sub 4}.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1]
  1. College of Chemistry and Chemical Engineering of Lanzhou University, Lanzhou 730000 (China)
Publication Date:
OSTI Identifier:
20725850
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 178; Journal Issue: 3; Other Information: DOI: 10.1016/j.jssc.2005.01.015; PII: S0022-4596(05)00028-9; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ACETATES; ALUMINIUM COMPOUNDS; CHELATING AGENTS; DOPED MATERIALS; ELECTRIC BATTERIES; ETHANOL; FLUORIDES; GELS; LITHIUM COMPOUNDS; LITHIUM IONS; MANGANESE COMPOUNDS; OXIDES; SPINELS; SYNTHESIS; THERMAL ANALYSIS; X-RAY DIFFRACTION

Citation Formats

Benlin, He, Shujuan, Bao, Yanyu, Liang, Wenjia, Zhou, Hua, Li, and Hulin, Li. Electrochemical properties and synthesis of LiAl{sub 0.05}Mn{sub 1.95}O{sub 3.95}F{sub 0.05} by a solution-based gel method for lithium secondary battery. United States: N. p., 2005. Web. doi:10.1016/j.jssc.2005.01.015.
Benlin, He, Shujuan, Bao, Yanyu, Liang, Wenjia, Zhou, Hua, Li, & Hulin, Li. Electrochemical properties and synthesis of LiAl{sub 0.05}Mn{sub 1.95}O{sub 3.95}F{sub 0.05} by a solution-based gel method for lithium secondary battery. United States. doi:10.1016/j.jssc.2005.01.015.
Benlin, He, Shujuan, Bao, Yanyu, Liang, Wenjia, Zhou, Hua, Li, and Hulin, Li. Tue . "Electrochemical properties and synthesis of LiAl{sub 0.05}Mn{sub 1.95}O{sub 3.95}F{sub 0.05} by a solution-based gel method for lithium secondary battery". United States. doi:10.1016/j.jssc.2005.01.015.
@article{osti_20725850,
title = {Electrochemical properties and synthesis of LiAl{sub 0.05}Mn{sub 1.95}O{sub 3.95}F{sub 0.05} by a solution-based gel method for lithium secondary battery},
author = {Benlin, He and Shujuan, Bao and Yanyu, Liang and Wenjia, Zhou and Hua, Li and Hulin, Li},
abstractNote = {The cathode materials, LiMn{sub 2}O{sub 4}, LiAl{sub 0.05}Mn{sub 1.95}O{sub 4} and LiAl{sub 0.05}Mn{sub 1.95}O{sub 3.95}F{sub 0.05} were firstly prepared by a simple solution-based gel method using the mixture of acetate and ethanol as the chelating agent. The synthesized samples were investigated by X-ray diffraction, scanning electronic microscope and differential and thermal analysis. The as-prepared powders were used as positive materials for lithium-ion battery, whose discharge capacity and cycle voltammogram properties were examined. The results revealed that LiAl{sub 0.05}Mn{sub 1.95}O{sub 3.95}F{sub 0.05} synthesized by the solution-based gel method had higher initial capacity than LiAl{sub 0.05}Mn{sub 1.95}O{sub 4} and better capacity retention rate (92%) than that of LiAl{sub 0.05}Mn{sub 1.95}O{sub 4} and LiMn{sub 2}O{sub 4}, which revealed that Al and F dual-doped LiMn{sub 2}O{sub 4} could gain better electrochemical properties of LiMn{sub 2}O{sub 4} than only the Al-doped LiMn{sub 2}O{sub 4}.},
doi = {10.1016/j.jssc.2005.01.015},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 3,
volume = 178,
place = {United States},
year = {2005},
month = {3}
}