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Elastic Capacitor Electrode Based on Carbon‐embedded Polymer Matrix
Author(s) -
Thibodeau Jake,
Ignaszak Anna
Publication year - 2017
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201600581
Subject(s) - materials science , electrode , capacitance , polymer , electrolyte , capacitor , cyclic voltammetry , electrochemistry , chemical engineering , composite material , analytical chemistry (journal) , chemistry , electrical engineering , chromatography , voltage , engineering
AC impedance and voltammetry investigations revealed strong effect of the electrode composition on its machanical and electrical properties and led to its optimization in a CNT‐PVA‐PEG‐SiO 2 ‐KCl aq system with good elasticity and excellent electrochemical stability. The uniform distribution of SiO 2 and carbon in the polymer fraction was confirmed by SEM imaging. This morphology facilitates retaining water and flexibility of films. An improvement of mass transport in the capacitor electrode as compared to a pure electrolyte was justified based on analysis of the diffusion resistance. The specific capacitance of the electrode and symmetrical capacitor cell is in the mF range and is suitable power system for microelectronic components.