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Title: Electrochemical impedance spectroscopy studies of lithium diffusion in doped manganese oxide

Abstract

Cathode performance is critical to lithium ion rechargeable battery performance; effects of doping lithium manganese oxide cathode materials on cathode performance are being investigated. In this paper, Li diffusion in Al-doped LiMn{sub 2}O{sub 4} was studied and found to be controlled by the quantity of Al dopant. Electrochemical cycling was conducted at 0.5mA/cm{sub 2}; electrochemical impedance spectra were taken at open circuit potential, with impedance being measured at 65 kHz-0.01 Hz. As the Al dopant level was increased, the Li diffusion rate decreased; this was attributed to the decreased lattice parameter of the doped oxide.

Authors:
; ; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
238345
Report Number(s):
SAND-96-1145C; CONF-9606212-1
ON: DE96010553
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: 8. international meeting on lithium batteries, Nagoya (Japan), 16-21 Jun 1996; Other Information: PBD: [1996]
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE; CATHODES; MATERIALS; ELECTRIC BATTERIES; LITHIUM; DIFFUSION; MANGANESE OXIDES; LITHIUM COMPOUNDS; MANGANATES; DOPED MATERIALS; ALUMINIUM ADDITIONS

Citation Formats

Johnson, B J, Doughty, D H, Voigt, J A, and Boyle, T J. Electrochemical impedance spectroscopy studies of lithium diffusion in doped manganese oxide. United States: N. p., 1996. Web.
Johnson, B J, Doughty, D H, Voigt, J A, & Boyle, T J. Electrochemical impedance spectroscopy studies of lithium diffusion in doped manganese oxide. United States.
Johnson, B J, Doughty, D H, Voigt, J A, and Boyle, T J. Sat . "Electrochemical impedance spectroscopy studies of lithium diffusion in doped manganese oxide". United States. https://www.osti.gov/servlets/purl/238345.
@article{osti_238345,
title = {Electrochemical impedance spectroscopy studies of lithium diffusion in doped manganese oxide},
author = {Johnson, B J and Doughty, D H and Voigt, J A and Boyle, T J},
abstractNote = {Cathode performance is critical to lithium ion rechargeable battery performance; effects of doping lithium manganese oxide cathode materials on cathode performance are being investigated. In this paper, Li diffusion in Al-doped LiMn{sub 2}O{sub 4} was studied and found to be controlled by the quantity of Al dopant. Electrochemical cycling was conducted at 0.5mA/cm{sub 2}; electrochemical impedance spectra were taken at open circuit potential, with impedance being measured at 65 kHz-0.01 Hz. As the Al dopant level was increased, the Li diffusion rate decreased; this was attributed to the decreased lattice parameter of the doped oxide.},
doi = {},
url = {https://www.osti.gov/biblio/238345}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {6}
}

Conference:
Other availability
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