Hybrid ionogels derived from polycationic polysilsesquioxanes for lithium ion batteries

Jin Hong Lee, Albert S. Lee, Soon Man Hong, Seung Sang Hwang, Chong Min Koo

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

A multifunctional crosslinkable and ionic-group functionalized ladder-like polysilsesquioxane was synthesized and utilized for the fabrication of hybrid ionogels for lithium ion batteries. The ionic-group functionalized ladder-like polysilsesquioxane combined the synergistic effects of hybrid materials in improving the thermal stability of conventional battery electrolytes, whilst maintain facile solution processability and chemically crosslinkable function in ionic conducting ionic liquid electrolyte media. Fabricated iongel electrolytes exhibiting exceptional thermal stability, mechanical properties, high ionic conductivity, and electrochemical stability. Lithium ion batteries fabricated with the hybrid ionic ladder-like polysilsesquioxane ionogels exhibited initial discharge capacities on par with neat liquid electrolytes, good rate performance, as well as stable cyclability and excellent Coulombic efficiency.

Original languageEnglish
Pages (from-to)160-166
Number of pages7
JournalPolymer
Volume117
DOIs
Publication statusPublished - 2017 May 19

Bibliographical note

Funding Information:
This work was financially supported by a grant from the Fundamental R&D Program for Core Technology of Materials, and 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 funded by the Ministry of Science, ICT & Future Planning.

Publisher Copyright:
© 2017 Elsevier Ltd

Keywords

  • Gel polymer electrolytes
  • Ionic liquids
  • Ionogels
  • Lithium ion batteries
  • Silsesquioxanes

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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