Morphological Changes in Polymer Electrolyte Cells.

Abstract

Rechargeable solid state batteries utilizing lithium anodes, V6O13 composite cathodes and polymer electrolytes made from polyethylene oxide - LiCF3SO3 complex were investigated at 100 C. The cells exhibited good cycling and reversibility. Optical and scanning electron microscopy were used the morphological changes taking place at the electrodes and electrolyte as a function of cycle number. Post-mortem examination of the cell material indicated that the structures of lithium, electrolyte and cathode become finer grained and hence smoother. In addition the structures were more coherent. The cathode appeared to undergo a re-healing process during the early stage of cycling. The results indicate that the structures are consistent with one another and that long cycle life can be obtained with these types of cells. Keywords: Polymer electrolytes, Morphology, Lithium, Cells. (MJM)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1988
Accession Number
ADA195821

Entities

People

  • B. B. Owens
  • M. Z. Munshi

Organizations

  • University of Minnesota

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Biomedical And Dental Materials
  • Cellular Structures
  • Chemistry
  • Composite Materials
  • Electrodes
  • Electron Microscopes
  • Electron Microscopy
  • Electrons
  • Failure Mode And Effect Analysis
  • Materials
  • Materials Science
  • Microscopes
  • Microscopy
  • Polymers
  • Scanning
  • Scanning Electron Microscopes
  • Scanning Electron Microscopy

Fields of Study

  • Materials science

Readers

  • Battery Technology and Engineering
  • Electrochemical Engineering/ Fuel Cell Technologies
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics