A Novel Battery Cathode Material Based on intercalation Chemistry: Redox Reactions of the 2,5-Dimercapto-1,3,4-Thiadiazole/V2O5 Xerogel System

Abstract

A novel redox active organic/inorganic hybrid composite material is prepared by oxidative intercalation of 2,5-dimercapto-1,3,4-thiadiazole (DMcT) or its disulfide dimer into a V2O5 xerogel. X-ray diffraction shows a change in the layer spacing between that of the parent V2O5 material (11.55 A) and that of the new intercalation material (13.5 A). This change is consistent with loss of some interstitial water during intercalation of the disulfide polymer of DMcT. Elemental analysis gives a composition for the intercalation material of (POLYDMcT)0.25.V2O5.1.4H2O. The cyclic voltammetry and galvanostatic discharge behavior of the parent V2O5 xerogel and the new intercalation material are directly compared. The (POLYDMcT)0.25.V2O5.1.4H2O hybrid composite material is shown to have superior discharge behavior, making it an attractive candidate material for use as a cathode in lithium secondary batteries.

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Document Details

Document Type
Technical Report
Publication Date
Jun 29, 1998
Accession Number
ADA348888

Entities

People

  • Daniel A. Buttry
  • Eiichi Shouji

Organizations

  • University of Wyoming

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Biocomposites
  • Chemical Synthesis
  • Chemistry
  • Composite Materials
  • Current Density
  • Diffraction
  • Films
  • Materials
  • Materials Science
  • Military Research
  • Oxidation Reduction Reactions
  • Oxides
  • Polymers
  • Storage Batteries
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Electrochemical Surface Science
  • Molecular and Cellular Biochemistry
  • Nanocomposite Materials Science

Technology Areas

  • Space
  • Space - Hall-Effect Thruster