Hybrid ionogel electrolytes with POSS epoxy networks for high temperature lithium ion capacitors

Wonjun Na, Albert S. Lee, Jin Hong Lee, Soon Man Hong, Eunkyoung Kim, Chong Min Koo

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Thermally curable hybrid ionogel electrolytes consisting of epoxy-functionalized POSS, amine-terminated polypropylene glycol, and ionic liquid electrolyte, 1 M LiTFSI in BMPTFSI were fabricated to give ionic conducting epoxy networks with cubic inorganic star networks crosslinked with lithium ion dissociating polypropylene glycol linkers. Characterization of these hybrid ionogels revealed high ion conduction, exceptional thermal stability, and electrochemical stability. Lithium ion capacitors fabricated with these hybrid ionogels revealed exceptional performance on par with the neat liquid ionic liquid electrolyte, and far superior over ionogels fabricated with conventional organic crosslinkers, due to the mechanical robustness and lithium ion dissociative character imparted by the POSS and PPG functionalities.

Original languageEnglish
Pages (from-to)27-32
Number of pages6
JournalSolid State Ionics
Volume309
DOIs
Publication statusPublished - 2017 Oct 15

Bibliographical note

Funding Information:
This work was financially supported by a grant from the Fundamental R&D Program for Core Technology of Materials and the Industrial Strategic Technology Development Program funded by the Ministry of Knowledge Economy, Republic of Korea. Partial funding was given by the Materials Architecturing Research Center of Korea Institute of Science and Technology (KIST) and the Korea Research Fellowship Program funded by the Ministry of Science, ICT, and Future Planning through the National Research Foundation of Korea. This research was also supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning.

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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