CoNb2O6 embedded in graphene nanosheets as an advanced intercalation anode for high-energy lithium-ion capacitors: Original scientific paper. J. Electrochem. Sci. Eng. [Internet]. 2025 Nov. 10 [cited 2026 May 22];16. Available from: https://pub.iapchem.org/ojs/index.php/JESE/article/view/2951