A highly concentrated electrolyte for high-efficiency potassium metal batteries

Wenxin Xu, Huwei Wang, Junyang Hu, Haodong Zhang, Biao Zhang, Feiyu Kang, Dengyun Zhai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

29 Citations (Scopus)


We report a highly concentrated electrolyte consisting of 4 M potassium bis(fluorosulfonyl)imide (KFSI) in diethylene glycol dimethyl ether (DEGDME). This new electrolyte enables stable cycling of K metal anodes with a high CE (over 98% over 400 cycles), and excellent capacity retention (99.7% after 500 cycles) of K||potassium Prussian blue (KPB) batteries.

Original languageEnglish
Pages (from-to)1034-1037
Number of pages4
JournalChemical Communications
Issue number8
Publication statusPublished - 25 Jan 2021

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry


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