Study on the electrochemical characteristics of quasi-solid-state electric double layer capacitors assembled with sulfonated poly(ether ether ketone) |
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| Affiliation: | 1. Departamento de Química, Universidad Católica del Norte, Av. Angamos 0610, Antofagasta-Chile;2. Departamento de Química, Universidad de Antofagasta, Av. Angamos 601, Antofagasta, Chile;3. Departamento de Física, Universidad de Antofagasta, Av. Angamos 601, Antofagasta, Chile;4. Institut für Anorganische Chemie der Goethe-Universität Frankfurt, Max-von-Laue-Strasse 7, D-60438 Frankfurt am Main, Germany;5. Instituto de Bio-Orgánica “Antonio González”, Universidad de La Laguna, Astrofísico Francisco Sánchez No 2, La Laguna, Tenerife, Spain;6. Departamento de Física Fundamental y Experimental, Electrónica y Sistemas, Malta Consolider Team, Universidad de La Laguna, E-38200 San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain |
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| Abstract: | Sulfonated poly(ether ether ketone) (S-PEEK) was synthesized by sulfonation of commercial PEEK. The S-PEEK membrane was prepared by casting from organic solution dissolving the polymer, and the polymer electrolyte was obtained by soaking the S-PEEK membrane in water or sulfuric acid solution. The effect of soaking solvent on the liquid uptake and the ionic conductivity of the polymer electrolyte has been investigated. The quasi-solid-state electric double layer capacitors (EDLCs) which consisted of activated carbon electrodes and polymer electrolyte were assembled, and their electrochemical characteristics were studied by cyclic voltammetry and charge–discharge cycle tests. |
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