NMR Studies of Polymeric Solid Electrolytes

Abstract

A wide variety of polymer electrolytes containing mobile sodium (+) ions have been studied by sodium 23 NMR. Motional averaging of the NMR linewidth above T(g) and subsequent lifetime broadening about 60K above T(g) was found to be common to all polymer hosts studied, including cross-linked PEO, PPO, MEEP and siloxane-PEO copolymers. Other highlights include the synthesis and study of single ion (cation) conductors, the development of high-pressure NMR capability, and the use of ESR to study ionic motion in copper(2+) containing polymer electrolytes. Li ion conductors in conjunction with the Li-thionyl chloride battery program is being studied. The deuteron NMR work provided valuable guidance in determining the phase diagram in frozen aqueous KOH solutions. An interesting spin-off of this work has been recently published study of deuteron NMR in polyimide films containing water.

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Document Details

Document Type
Technical Report
Publication Date
Mar 16, 1990
Accession Number
ADA219833

Entities

People

  • S. G. Greenbaum

Organizations

  • Hunter College

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Alkali Metals
  • Alkenes
  • Availability
  • Classification
  • Conductivity
  • Contracts
  • Copolymers
  • Deuterons
  • Electrical Conductivity
  • Ethylene Oxide
  • Films
  • High Pressure
  • Phase
  • Phase Diagrams
  • Polymers
  • Security
  • Universities

Fields of Study

  • Materials science

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Polymer Science and Technology

Technology Areas

  • Microelectronics