Sulfur-Based Lithium-Organic Electrolyte Secondary Batteries.

Abstract

This program is aimed at developing a rechargeable organic-electrolyte lithium battery to operate over the range -40 to +160F, have an energy density approaching 100 Whr/lb, a cycle life in excess of 500, and high charge retention. The approach is to use positive electrodes based on higher sulfides of Nb, Ti and V. Ti disulfides and trisulfides were prepared thermally. Both sulfides are electrochemically active and show similar overall behavior. Charge-discharge cycles in PC and methyl acetate (LiALCl4, LiCl04) electrolytes are characterized by relatively flat voltage plateaus with mid-discharge potentials of 2.OV. The discharge cutoff potential, the sulfide preparation, and the solvent appear to affect the cycling behavior. Charge and discharge reactions of TiS2 electrodes are relatively rapid. Diffusion of Li(+) ions in the sulfide and the electrolyte appear to be rate limiting.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1975
Accession Number
ADA017642

Entities

People

  • Gerhard L. Holleck
  • Joseph R. Driscoll

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Crystal Lattices
  • Current Density
  • Electrodes
  • Electrolytes
  • Elements
  • Energy
  • Lithium Batteries
  • Materials
  • Measurement
  • Metals
  • Organic Solvents
  • Photoelectrochemical Cells
  • Security
  • Solvents
  • Titanium
  • Transition Metals
  • Vanadium

Fields of Study

  • Materials science

Readers

  • Battery Technology and Engineering
  • Electrochemical Engineering/ Fuel Cell Technologies