Laser transferable polymer-ionic liquid separator/electrolytes for solid-state rechargeable lithium-ion microbatteries

Thomas E. Sutto, Michael Ollinger, Heungsoo Kim, Craig B. Arnold, Alberto Piqué

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

A laser-transferable polymer gel separator formulated from an imidazolium-based ionic liquid, poly(vinylidene fluoride) (PVDF)-HFP, and ceramic nanoparticles was prepared and electrochemically characterized by ac-impedance spectroscopy and in lithium-ion microbatteries. Size and weight percent effects of the nanoparticulates added to the laser-transferred separator indicate that nanoparticulates under 100 nm in size and in the 10 wt % range exhibited the highest ionic conductivity (1-3 mS/cm). Li-ion microbatteries prepared using this separator, a LiCoO 2 cathode, and a carbon anode maintained an average discharge voltage of up to 4.2 V with a reversible specific energy of 330 mWh/g.

Original languageEnglish (US)
Pages (from-to)A69-A71
JournalElectrochemical and Solid-State Letters
Volume9
Issue number2
DOIs
StatePublished - Apr 10 2006

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

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