期刊
ELECTROCHIMICA ACTA
卷 206, 期 -, 页码 490-495出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2016.02.013
关键词
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An inorganic gel polymer electrolyte based on the confinement of an ionic liquid mixture (1: 1 by weight or molar ratio) of N-methyl-N-propylpiperidinium bis(fluorosulfonyl) imide (PIP13FSI) and N-butyl-N-methylpyrrolidinium bis(fluorosulfonyl) imide (PYR14FSI) into a SiO2 matrix prepared from a sol-gel method was prepared and further used as electrolyte in an all solid-state supercapacitor. The synthetized ionogel exhibits a high ionic conductivity over a wide temperature range (from 0.2 mS cm (1) at -40 degrees C up to 10 mS cm (1) at 60 degrees C). The ionogel-based supercapacitor using two activated carbon electrodes can be operated over 3 V cell voltage window. Moreover this all solid-supercapacitor shows a capacitance up to 90 F g (1) at room temperature. These encouraging results show the interest of developing such devices, including non-toxic and safer electrolytes, packaging issues and flexible devices development. (C) 2016 Elsevier Ltd. All rights reserved.
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