Electrochemical Properties of Polyaniline in Aqueous Environments of Iodide and Bromide in the System of Electrochemical Energy Source

B.P. Bakhmatyuk; О.І. Аksimentyeva; І.Ya. Dupliak; Yu.Yu. Horbenko

doi:10.15330/pcss.17.2.234-240

Authors

B.P. Bakhmatyuk Lviv Polytechnic National University
О.І. Аksimentyeva Ivan Franko National University of Lviv
І.Ya. Dupliak Lviv Polytechnic National University
Yu.Yu. Horbenko Ivan Franko National University of Lviv

DOI:

https://doi.org/10.15330/pcss.17.2.234-240

Keywords:

leucoemeraldine / emeraldine, specific capacity, , iodide and bromide redox-active electrolytes

Abstract

The influence on specific discharge characteristics of redox - active iodide and bromide electrolytes of polyaniline as the cathode material in electrochemical energy sources with zinc anode was studied. Electrochemical and capacitive properties of PAN cathode was investigated using galvanostatic, potentiostatic, cyclic voltampermetric and impedance methods. It was established that PAN cathode inherent discharge specific capacity of С_р = 126 A × h × kg^-1 with current load і = 103 A × kg^-1in zinc - sulfate electrolyte and С_р = 301 A × h × kg^-1 in the same conditions in the presence of KI. Thus there is a reverse transition of various forms of PAN leucoemeraldine / emeraldine, that among the redox electrolyte causes increase in electrical capacitance and conductivity of PAN electrodes in the charged state.

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