Accession Number : ADA113603

Title :   Characterization of Ether Electrolytes for Rechargeable Lithium Cells.

Descriptive Note : Technical rept.,

Corporate Author : EIC LABS INC NEWTON MA

Personal Author(s) : Abraham,K M ; Goldman,J L ; Natwig,D L

PDF Url : ADA113603

Report Date : Mar 1982

Pagination or Media Count : 34

Abstract : 2Methyl-tetrahydrofuran (2Me-THF)/LiAsF6 and several diethyl ether (DEE)/LiAsF6-based electrolytes have been characterized for their usefulness in rechargeable Li/TiS2 cells. This characterization has involved extended room temperature cell cycling at various depths of discharge, evaluation of rate/capacity behavior of cells at 25C and -10C, and storage of cells at 50C for up to one month with subsequent cycling. The thermal stability of the electrolytes at 71C was evaluated by storage experiments in sealed-tubes, followed by product analysis. The performance of 2Me-THF/LiAsF6 cells far surpassed the others. The present data further substantiate previous reports from this laboratory of the superior behavior of 2Me-THF/LiAsF6 solutions in rechargeable Li cells. The DEE/LiAsF6 based electrolytes are too unstable thermally to be practically useful. (Author)

Descriptors :   *Electrochemistry, *Electrolytes, *Ethers, *Electrolytic cells, Furans, Lithium compounds, Ethyl radicals, Storage batteries, Thermal stability, Rates, Test and evaluation, Electric batteries, Efficiency

Subject Categories : Physical Chemistry
      Electrochemical Energy Storage

Distribution Statement : APPROVED FOR PUBLIC RELEASE