Characterization of Ether Electrolytes for Rechargeable Lithium Cells.

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)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1982
Accession Number
ADA113603

Entities

People

  • D. L. Natwig
  • J. L. Goldman
  • K. M. Abraham

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Cellular Structures
  • Charge Density
  • Chemical Analysis
  • Chemical Engineering
  • Chemistry
  • Corporations
  • Current Density
  • Decomposition
  • Electrodes
  • Environment
  • Films
  • Low Temperature
  • Materials
  • Military Research
  • New York
  • Thermal Stability
  • United States

Fields of Study

  • Materials science

Readers

  • Analytical Chemistry
  • Electrochemical Engineering/ Fuel Cell Technologies
  • Mathematics or Statistics