Journal
CHEMICAL COMMUNICATIONS
Volume 58, Issue 82, Pages 11567-11570Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cc04081f
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A new redox-active ionic liquid has been demonstrated to improve the capacitance performance of carbon-based supercapacitors by introducing it into the electrolyte. This opens up a new pathway for developing high-energy supercapacitors.
A new redox-active ionic liquid (2-(4-(phenyldiazenyl)phenoxy)ethyl)-1-methyl-imidazolium tetrafluoroborate ([ABEMIM][BF4]) is demonstrated. It is incorporated into another ionic liquid ([EMIM][BF4]) to form a mixed IL electrolyte, which can markedly improve the capacitance performance of carbon-based supercapacitors via extra pseudocapacitance contribution. It opens up a new path to develop high-energy supercapacitors through introducing a redox-active ionic liquid to electrolytes.
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