Issue 56, 2018, Issue in Progress

In situ combined analysis of gases and electrochemical signals of an activated carbon-based supercapacitor at 2.7–4 V

Abstract

An activated carbon (AC) electrode-based capacitor soft-pack was incorporated into a gas bag, and the gases, if produced during the charge and discharge of the capacitor, can be online analyzed by Gas chromatography. This method is effective to test the stability of capacitors using PC-based organic electrolytes up to 4 V. The kinetics of gas production was obtained and the components of the gases were analyzed quantitatively. Salts in the organic electrolyte were firstly decomposed, rather than the solvent, under the conditions of less water and AC with few functional groups. It provided new insight into understanding the stability of capacitors in high potential.

Graphical abstract: In situ combined analysis of gases and electrochemical signals of an activated carbon-based supercapacitor at 2.7–4 V

Supplementary files

Article information

Article type
Paper
Submitted
04 Aug 2018
Accepted
05 Sep 2018
First published
18 Sep 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 32188-32192

In situ combined analysis of gases and electrochemical signals of an activated carbon-based supercapacitor at 2.7–4 V

J. Li, Z. Xu and Z. Zhang, RSC Adv., 2018, 8, 32188 DOI: 10.1039/C8RA06568C

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