Realizing the potential of micro-phase separated block copolymer electrolytes: Ion domain connectivity plays a prominent role in ion conduction

C. G. Arges, Y. Kambe, M. Dolejsi, G. Wu, T. Segal-Peretz, J. Ren, P. F. Nealey

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Block copolymer electrolytes (BCEs) offer the prospect of membranes with high ionic conductivity at lower ion-exchange capacities leading to membranes with robust mechanical properties. However, the microphase separated structure of such BCE membranes and its impact on membrane conductivity is poorly understood. Most studies assume that aggregated ionic domains in microphase separated BCEs, or random copolymers, is sufficient to foster facile ion conductivity. However, microphase separation alone cannot spur rapid ion conduction. In this paper, we demonstrate that ion domain connectivity greatly influences ion conductivity in BCEs. The results emphasize the importance of maximizing ion domain connectivity while minimizing terminal defects to realize BCEs with optimal ion transport properties.

Original languageEnglish (US)
Title of host publicationPolymer Electrolyte Fuel Cells 16, PEFC 16
EditorsD. J. Jones, F. N. Buchi, B. S. Pivovar, T. F. Fuller, A. Z. Weber, L. Zhuang, C. Coutanceau, P. N. Pintauro, K. E. Ayers, V. K. Ramani, P. Strasser, R. A. Mantz, S. R. Narayanan, S. Mitsushima, T. J. Schmidt, S. G. Sun, H. Uchida, H. A. Gasteiger, K. Swider-Lyons, J. M. Fenton, Y. T. Kim, K. A. Perry, P. Shirvanian, K. Shinohara
PublisherElectrochemical Society Inc.
Number of pages8
ISBN (Electronic)9781607685395
StatePublished - 2016
EventSymposium on Polymer Electrolyte Fuel Cells 16, PEFC 2016 - PRiME 2016/230th ECS Meeting - Honolulu, United States
Duration: Oct 2 2016Oct 7 2016

Publication series

NameECS Transactions
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737


ConferenceSymposium on Polymer Electrolyte Fuel Cells 16, PEFC 2016 - PRiME 2016/230th ECS Meeting
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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