Suppression of PF6− intercalation into graphite by small amounts of ethylene carbonate in activated carbon/graphite capacitors

Hongyu Wang; Masaki Yoshio

doi:10.1039/B914931G

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Suppression of PF₆⁻ intercalation into graphite by small amounts of ethylene carbonate in activated carbon/graphite capacitors†

Hongyu Wang*^a and Masaki Yoshio^b

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* Corresponding authors

^a State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
E-mail: hongyuwang@ciac.jl.cn
Fax: +86-431-85262287
Tel: +86-431-85262287

^b Advanced Research Center, Saga University, 1341 Yoga-machi, Saga 840-0047, Japan
E-mail: yoshio@cc.saga-u.ac.jp
Fax: +81-952-204729
Tel: +81-952-204729

Abstract

Ethylene carbonate molecules in electrolyte solutions can bind tightly with PF₆⁻ anions, and prevent the intercalation of these anions into the interlayer spaces of graphite positive electrodes in activated carbon/graphite capacitors.

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Supplementary files

In situ XRD patterns of the KS6 positive electrode in the capacitors using electrolyte solutions of 1.5 M SBPBF ₄ PDF (240K)

Article information

DOI: https://doi.org/10.1039/B914931G
Article type: Communication
Submitted: 23 Jul 2009
Accepted: 11 Nov 2009
First published: 27 Jan 2010

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Chem. Commun., 2010,46, 1544-1546

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Suppression of PF₆⁻ intercalation into graphite by small amounts of ethylene carbonate in activated carbon/graphite capacitors

H. Wang and M. Yoshio, Chem. Commun., 2010, 46, 1544 DOI: 10.1039/B914931G

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