Recent progress with ethyleneoxy phosphazenes as lithium battery electrolytes

Shih To Fei, Harry R. Allcock

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


We report here a series of high-conductivity liquid- and gel-electrolytes based on a mixture of ethyleneoxy phosphazenes and propylene carbonate, which have potential applications in lithium battery assembly. Phosphazene compounds are known to be good materials for solid polymer lithium electrolytes and, following that idea, we have developed low-volatility liquid phosphazene electrolytes that maintain 10-4 S/cm conductivity. A high conductivity of 10-3 S/cm can be achieved when polymeric phosphazenes are used as solidifying agents for conventional battery electrolytes. We also report here the fire retardant properties of the materials, which may lead to future use of these materials as fire retardant additives.

Original languageEnglish (US)
Title of host publicationMobile Energy
PublisherMaterials Research Society
Number of pages6
ISBN (Print)9781615677634
StatePublished - 2008
Event2008 MRS Fall Meeting - Boston, MA, United States
Duration: Dec 1 2008Dec 5 2008

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


Other2008 MRS Fall Meeting
Country/TerritoryUnited States
CityBoston, MA

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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