V₂O₅ supercapacitor electrode literature dataset: 974 records from 60 studies, with extraction protocol and analysis scripts

This dataset contains 974 records of specific capacitance and test conditions extracted from 60 published studies of V₂O₅-based supercapacitor electrodes. Each record is linked to a page, table or figure of its source study. The package includes the data files (CSV and XLSX), the schema and extraction rules, and the Python scripts used for validation, analysis and figures. NR denotes a value not reported in the source, and None denotes a component that is explicitly absent. The protocol files are the author's working files in Turkish, and an English summary is given in the Supplementary Information of the article. The dataset supports the article What sixty studies of V₂O₅ supercapacitor electrodes can and cannot tell us: a validated dataset with study-grouped analysis.