CaltechAUTHORS
  A Caltech Library Service

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. https://resolver.caltech.edu/CaltechAUTHORS:20110427-100823795

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20110427-100823795

Abstract

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
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.jpowsour.2005.10.012DOIUNSPECIFIED
http://www.sciencedirect.com/science/article/B6TH1-4HJS5B5-J/2/fc9a818e6ab978b35a995ac20a98fbd1PublisherUNSPECIFIED
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.
Funders:
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
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20110427-100823795
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. (http://www.sciencedirect.com/science/article/B6TH1-4HJS5B5-J/2/fc9a818e6ab978b35a995ac20a98fbd1)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:23479
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:28 Apr 2011 21:59
Last Modified:03 Oct 2019 02:46

Repository Staff Only: item control page