Redox-Active Supramolecular Polymer Binders for Lithium-Sulfur Batteries That Adapt Their Transport Properties in Operando

Peter D. Frischmann, Yoon Hwa, Elton J. Cairns, Brett A. Helms

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

π-Stacked perylene bisimide (PBI) molecules are implemented here as highly networked, redox-active supramolecular polymer binders in sulfur cathodes for lightweight and energy-dense Li-S batteries. We show that the in operando reduction and lithiation of these PBI binders sustainably reduces Li-S cell impedance relative to nonredox active conventional polymer binders. This lower impedance enables high-rate cycling in Li-S cells with excellent durability, a critical step toward unlocking the full potential of Li-S batteries for electric vehicles and aviation.

Original languageEnglish (US)
Pages (from-to)7414-7421
Number of pages8
JournalChemistry of Materials
Volume28
Issue number20
DOIs
StatePublished - Oct 25 2016
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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