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Use of a water-in-salt electrolyte to avoid organic material dissolution and enhance the kinetics of aqueous potassium ion batteries

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Abstract

A concentrated water-in-salt electrolyte (WiSE) effectively binds free water molecules, suppressing hydrogen evolution and the dissolution of potassiated perylene-3,4,9,10-tetracarboxylic dianhydride, resulting in improved cycling stability. In addition, easier breakup of the K+ solvation sheath in this WiSE also leads to improved kinetics for faster K+ storage.

Graphical abstract: Use of a water-in-salt electrolyte to avoid organic material dissolution and enhance the kinetics of aqueous potassium ion batteries

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Publication details

The article was received on 22 Jul 2019, accepted on 14 Oct 2019 and first published on 15 Oct 2019


Article type: Communication
DOI: 10.1039/C9SE00545E
Sustainable Energy Fuels, 2020, Advance Article

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    Use of a water-in-salt electrolyte to avoid organic material dissolution and enhance the kinetics of aqueous potassium ion batteries

    H. Chen, Z. Zhang, Z. Wei, G. Chen, X. Yang, C. Wang and F. Du, Sustainable Energy Fuels, 2020, Advance Article , DOI: 10.1039/C9SE00545E

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