Dataset for: "Influence of supporting electrolyte on the self-discharge processes of hybrid supercapacitors utilizing sodium iodide in an aqueous and aqueous-organic media", NCN grant no 2022/06/X/ST4/00136

The dataset includes the results obtained during the implementation of the project dedicated to hybrid electrochemical capacitors utilizing iodide redox electrolytes with various pH and composition, i.e. in the presence of different supporting electrolyte anions The electrochemical, spectroscopic, and chromatographic data are gathered in ASCII, and Origin graph format along with comments and descriptions of test protocols, materials, and methods used in the study.See "Readme" file contained in the main ZIP archive for further details.