The Effect of Low Molecular Weight Additives on the Properties of Poly(ethylene oxide)-Based Zn(II) and Li(I) Electrolytes

Abstract

The incorporation of low molecular weight additives significantly improves the conductivity of both PEO-based ZnBr2 and LiClO4 electrolytes from 0 to 100 deg C, particularly at room temperature and below. Apparently additives have two effects: (1) to increase the segmental mobility of the PEO chains in the amorphous conducting phase, and therefore, increase the mobility of charge carriers; and (2) to increase the degree of salt dissociation in the amorphous conducting phase and thus increase the number of charge carriers. The effectiveness of additives in improving conductivity is greatly influenced by the type of salts involved.

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Document Details

Document Type
Technical Report
Publication Date
Jun 12, 1992
Accession Number
ADA258332

Entities

People

  • G. C. Farrington
  • Hong-Tao Yang
  • L. L. Yang

Organizations

  • University of Pennsylvania

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Additives (Chemicals)
  • Body Weight
  • Carbonate Esters
  • Charge Carriers
  • Chemical Synthesis
  • Chemistry
  • Conductivity
  • Dielectric Permittivity
  • Dissociation
  • Glass Transition Temperature
  • Materials
  • Materials Science
  • Molecular Weight
  • Phase Transformations
  • Polymers
  • Transition Temperature
  • Transitions

Fields of Study

  • Materials science

Readers

  • Combustion science or combustion engineering.
  • Materials Science and Engineering.
  • Polymer Science and Engineering.