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Quasi-solid-state electric double layer capacitors assembled with sulfonated poly(fluorenyl ether nitrile oxynaphthalate) membranes

Title
Quasi-solid-state electric double layer capacitors assembled with sulfonated poly(fluorenyl ether nitrile oxynaphthalate) membranes
Author
김동원
Keywords
Degree of sulfonation; Electric double layer capacitor; Polymer electrolyte; Proton exchange membrane; Sulfonated aromatic polymer
Issue Date
2011-12
Publisher
Elsevier Science B.V., Amsterdam.
Citation
Electrochimica Acta, 2011, 58, p.285-289
Abstract
A series of sulfonated poly(fluorenyl ether nitrile oxynaphthalate) (SPFENO) copolymers with different degrees of sulfonation were synthesized. Their degree of sulfonation was controlled by adjusting the molar ratio of the reactants. The polymer electrolytes prepared with a SPFENO membrane exhibited high ionic conductivities and solution holding capacity, which depended on the degree of sulfonation. The quasi-solid-state electric double layer capacitors (EDLCs) consisted of activated carbon electrodes and polymer electrolytes were assembled, and their electrochemical characteristics were studied by cyclic voltammetry and charge-discharge cycle tests. A SPFENO membrane with proper degree of sulfonation was effective for maintaining high ionic conductivity and keeping good electrode-electrolyte interfacial contact during cycling, which resulted in good cycling performance of the EDLC. (C) 2011 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0013468611014630http://hdl.handle.net/20.500.11754/65616
ISSN
0013-4686
DOI
10.1016/j.electacta.2011.09.061
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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