Fig. 1: Number of publications in the field of supercapacitors focusing on different methods for energy density increase.
From: Metrics and methods for moving from research to innovation in energy storage
Data collected in January 2022 using the Mendeley database and selecting the year interval 2019–2022. The searched terms were: (i) [Supercapacitor] (resulting in 13,287 total publications – value not shown in the graph), (ii) [Supercapacitor “Energy density”] (resulting in 5945 publications, i.e., 45% of the [Supercapacitor] result), (iii) [Supercapacitor “Energy density” electrolyte] (resulting in 2189 publications, i.e., 37% of the [Supercapacitor “Energy density”] result), (iv) [Supercapacitor “Energy density” “surface area”] (resulting in 1684 publications, i.e., 28% of the [Supercapacitor “Energy density”] result) and, (v) [Supercapacitor “Energy density” pore] (resulting in 699 publications, i.e., 12% of the [Supercapacitor “Energy density”] result).
