Ion conduction in microphase-separated block copolymer electrolytes

Yu Kambe, Christopher G. Arges, Shrayesh N. Patel, Mark P. Stoykovich, Paul F. Nealey

Research output: Contribution to journalReview articlepeer-review

15 Scopus citations

Abstract

Microphase separation of block copolymers provides a promising route towards engineering a mechanically robust ion conducting film for electrochemical devices. The separation into two different nano-domains enables the film to simultaneously exhibit both high ion conductivity and mechanical robustness, material properties inversely related in most homopolymer and random copolymer electrolytes. To exhibit the maximum conductivity and mechanical robustness, both domains would span across macroscopic length scales enabling uninterrupted ion conduction. One way to achieve this architecture is through external alignment fields that are applied during the microphase separation process. In this review, we present the progress and challenges for aligning the ionic domains in block copolymer electrolytes. A survey of alignment and characterization is followed by a discussion of how the nanoscale architecture affects the bulk conductivity and how alignment may be improved to maximize the number of participating conduction domains.

Original languageEnglish (US)
Pages (from-to)61-67
Number of pages7
JournalElectrochemical Society Interface
Volume26
Issue number1
DOIs
StatePublished - Mar 1 2017

All Science Journal Classification (ASJC) codes

  • Electrochemistry

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