An azobenzene-modified redox-active ionic liquid electrolyte for supercapacitors.

Yuhua Zhao,Yujuan Chen,Kelei Zhuo,Quanzhou Du,Dong Sun,Zhiyong Li,Huiyong Wang,Changling Yan,Jianji Wang

CHEMICAL COMMUNICATIONS（2022）

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摘要

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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关键词

supercapacitors,ionic liquid,electrolyte,azobenzene-modified,redox-active

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