Hybrid Energy Storage Systems Based on Nanostructured Materials

Dear Colleagues,

The urgent demand for sustainable and high-performance energy storage systems (ESSs) has accelerated the exploration of alternative technologies beyond conventional lithium-ion batteries. Hybrid energy storage systems (HESSs), particularly those incorporating aqueous zinc-ion hybrid supercapacitors (Zn-HSCs), aluminum-ion batteries (AIBs), and lithium metal batteries (LMBs), offer a promising pathway to bridge the gap between high-energy and high-power-density devices. This Special Issue focuses on the design and development of nanostructured materials as advanced electrodes for next-generation HESSs.

Recent progress in the synthesis of donor–acceptor conjugated polymers, covalent organic frameworks (COFs), metal–organic frameworks (MOFs), MOF@COF hybrids, and functionalized graphene derivatives has revealed their potential to significantly enhance charge storage mechanisms. These materials leverage properties such as high surface area, hierarchical porosity, tunable redox activity, and strong metal-ion affinity—achieved through molecular engineering, heteroatom doping, and supramolecular functionalization—to improve both energy and power performance while maintaining long-term stability.

The goal of this Special Issue is to highlight the role of nanostructured and hybrid materials in driving innovation in hybrid ESSs. We welcome contributions that span fundamental material design, advanced characterization techniques, mechanistic studies, and device-level applications. By collecting cutting-edge research in this space, we aim to provide a comprehensive overview of current challenges and opportunities in the field of hybrid energy storage systems.

Dr. Verónica Montes García
Guest Editor

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