Organic-inorganic hybrid electrolytes from ionic liquid-functionalized octasilsesquioxane for lithium metal batteries

Guang Yang, Chalathorn Chanthad, Hyukkeun Oh, Ismail Alperen Ayhan, Qing Wang

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

The use of highly conductive solid-state electrolytes to replace conventional liquid organic electrolytes enables radical improvements in the reliability, safety and performance of lithium batteries. Here, we report the synthesis and characterization of a new class of nonflammable solid electrolytes based on the grafting of ionic liquids onto octa-silsesquioxane. The electrolyte exhibits outstanding roomerature ionic conductivity (∼4.8 × 10-4 S cm-1), excellent electrochemical stability (up to 5 V relative to Li+/Li) and high thermal stability. All-solid-state Li metal batteries using the prepared electrolyte membrane are successfully cycled with high coulombic efficiencies at ambient temperature. The good cycling stability of the electrolyte against lithium has been demonstrated. This work provides a new platform for the development of solid polymer electrolytes for application in roomerature lithium batteries.

Original languageEnglish (US)
Pages (from-to)18012-18019
Number of pages8
JournalJournal of Materials Chemistry A
Volume5
Issue number34
DOIs
StatePublished - Jan 1 2017

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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