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A kinetics study of self-discharge of spinel electrodes in Li/Li_xMn_2O_4 cells

Yazami, R. and Ozawa, Y. (2006) A kinetics study of self-discharge of spinel electrodes in Li/Li_xMn_2O_4 cells. Journal of Power Sources, 153 (2). pp. 251-257. ISSN 0378-7753.

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The rate of self-discharge in lithium half-cells with the spinel-type LiMn_2O_4 cathode was investigated in the 60–75 °C temperature range. The time dependence of the capacity loss and the open-circuit voltage (OCV) was monitored during the thermal aging. Lithium re-intercalation from the electrolyte appears to govern the mechanism of self-discharge in the two plateaus at the ‘4 V’ areas. Treatment of the OCV data acquired during aging and by the Galvanostatic Intermittent Titration Technique (GITT) method allowed the electrode composition to be determined during the course of self-discharge. Self-discharge current was then determined and plotted against OCV. The isothermal voltammograms obtained show characteristic self-discharge current peaks.

Item Type:Article
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Yazami, R.0000-0002-0085-5012
Additional Information:© 2005 Elsevier B.V. Available online 14 November 2005. Support for this project has been provided by DOE through Basic Energy Sciences Grant DE-FG03-00ER15035.
Funding AgencyGrant Number
Department of Energy (DOE) Basic Energy SciencesDE-FG03-00ER15035
Subject Keywords:self-discharge; capacity loss; kinetics; lithium manganese spinel; activation energy
Issue or Number:2
Record Number:CaltechAUTHORS:20110427-100823795
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Official Citation:R. Yazami, Y. Ozawa, A kinetics study of self-discharge of spinel electrodes in Li/LixMn2O4 cells, Journal of Power Sources, Volume 153, Issue 2, Selected papers presented at the 2004 Meeting of the International Battery Association, 28 February 2006, Pages 251-257, ISSN 0378-7753, DOI: 10.1016/j.jpowsour.2005.10.012. (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:23479
Deposited By: Tony Diaz
Deposited On:28 Apr 2011 21:59
Last Modified:09 Mar 2020 13:19

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