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A Highly Concentrated Catholyte Based on a Solvate Ionic Liquid for Rechargeable Flow Batteries
Author(s) -
Takechi Kensuke,
Kato Yuichi,
Hase Yoko
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201405840
Subject(s) - ionic liquid , supercooling , materials science , salt (chemistry) , electrochemistry , molten salt , chemical engineering , ionic bonding , redox , energy density , inorganic chemistry , flow (mathematics) , chemical physics , ion , organic chemistry , electrode , thermodynamics , chemistry , catalysis , metallurgy , engineering physics , geometry , mathematics , engineering , physics
A redox‐active supercooled liquid is obtained by forming a “solvate ionic liquid” from a mixture of a stabilized organic radical and a specific Li salt and stabilizing the mixture further below their melting points. As a catholyte, the addition of an appropriate amount of water helps to enhance the electrochemical advantage while maintaining its supercooled nature and the liquid shows a high energy density of 200 W h L −1 with reversible charge/discharge.
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