Sustainable energy storage solutions using nanomaterials: bridging the gap between policy and technology in Italy

This study explores the potential of nanomaterial-based energy storage systems to accelerate Italy’s renewable energy transition by integrating advanced technologies with policy and market analysis. Using a multidisciplinary methodology, the research combines a systematic literature review (2018–2025), regulatory framework assessment, comparative case studies (Germany, the Netherlands, Japan), expert elicitation, and thematic synthesis using NVivo and the Technology Readiness Level (TRL) framework. Nanomaterials, including graphene, carbon nanotubes (CNTs), lithium-sulfur (Li-S), and solid-state batteries, demonstrate significant advantages over conventional lithium-ion technologies. Graphene-based systems exhibit energy densities up to 650 Wh/kg, charging speeds under 15 minutes, and cycle lives exceeding 6,000 cycles. Solid-state and Li-S batteries offer enhanced safety and recyclability, making them suitable for large-scale renewable integration. However, Italy faces critical challenges: high production costs (e.g. $100/kg for graphene), low stakeholder awareness (15%), fragmented national coordination, underfunded pilot programs, and regulatory delays compared to global frontrunners like Germany and Japan. Opportunities are emerging through AI-driven material design, which can reduce development time, and circular economy models, enabling up to 90% recovery of critical nanomaterials such as graphene. Comparative benchmarking highlights Italy’s strong research base but a lack of targeted support and market readiness. This study offers evidence-based recommendations to bridge the gap between innovation and implementation. These include targeted funding for nanomaterial battery pilots, the creation of innovation hubs, regulatory streamlining through sandbox frameworks, and public engagement initiatives to improve awareness and adoption. By aligning its nanotechnology research strengths with cohesive national strategies, Italy can enhance its contribution to the EU’s Green Deal and Fit for 55 targets, while positioning itself as a leader in sustainable energy storage solutions.