EDLCde

EDLCde is an open, collaborative framework and repository devoted to Electric Double-Layer Capacitors (EDLCs), commonly known as supercapacitors. Established in 2021 by researchers, industry partners, and standardization bodies, EDLCde aims to unify data reporting, test protocols, and material property datasets to improve reproducibility and accelerate development.

The project provides a data model describing device-level, cell-level, and material-level attributes, including capacitance, equivalent series resistance (ESR), leakage current, cycle life, temperature dependence, voltage window, and aging metrics. Data schemas cover experimental conditions (charging/discharging profiles, current rates) and test methods (galvanostatic, cyclic voltammetry). The platform emphasizes provenance, licensing, and versioning.

Access is via an open repository and API; data are stored in JSON or CSV with optional YAML metadata. EDLCde hosts benchmarking suites and reference datasets to enable cross-lab comparison and supplier evaluation. It supports interoperability with simulation and design tools through standardized units and an ontology mapping to common EDLC models.

Impact and governance. The initiative seeks to reduce duplication of effort and improve comparability of results. Adoption varies by domain, and concerns include incomplete data submissions and licensing constraints. Governance is provided by a rotating steering committee comprising academia, industry, and standards bodies.

See also: Electric double-layer capacitor; supercapacitor; energy storage; data standards.