Ion Pair Integrated Organic-Inorganic Hybrid Electrolyte Network for Solid-State Lithium Ion Batteries

Guang Yang, Baoyan Fan, Feihua Liu, Fangzhou Yao, Qing Wang

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

A class of organic-inorganic hybrid electrolyte with ion pair integrated network (X-POSS-IL-LiTFSI) has been prepared by crosslinking of oligomeric octasilsesquioxanes grafted with imidazolium-based ionic liquids for solid state lithium ion battery applications. X-POSS-IL-LiTFSI is thermally stable and highly amorphous, and shows high ionic conductivities and excellent electrochemical stability. With further immobilization of a small fraction of ionic liquid, the ionic conductivity of X-POSS-IL-LiTFSI has been significantly improved, e. g. 1.4×10−4 S/cm at ambinet temperature, to the level required by the practical battery applications, while maintaining the demensional integity. The coin cells of lithium batteries with the plasticized X-POSS-IL-LiTFSI electrolytes exhibit high specific capacities at both ambient and elevated temperatures.

Original languageEnglish (US)
Pages (from-to)2319-2325
Number of pages7
JournalEnergy Technology
Volume6
Issue number12
DOIs
StatePublished - Dec 2018

All Science Journal Classification (ASJC) codes

  • Energy(all)

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