Background: As the world shifts towards renewable energy, there is a growing demand for efficient energy storage systems. Because of their unique features, nanostructured materials have emerged as key to improving the performance and efficiency of these storage systems. Objective: This research aims to assess the most recent discoveries and uses of nanostructured materials in energy storage technologies, emphasizing its disruption in the industry. Methods: A detailed assessment of recent advances was undertaken, focusing on diverse nanostructured materials utilized in batteries, supercapacitors, and other energy storage systems. Synthesis and characterization techniques for these materials and their incorporation into energy storage devices were investigated. Results: The nanostructured materials considerably increase energy density, charge/discharge speeds, and durability of energy storage devices. Graphene, carbon nanotubes, and metal-oxide nanostructures have significantly improved performance metrics across various applications. Conclusion: Nanostructured materials have to revolutionize energy storage systems. Continued research and development in this sector are critical for developing high-performance, long-term energy storage technologies capable of meeting the growing demands of contemporary technology and renewable energy systems. Further investigation into these materials' scalability and environmental effects is necessary to ensure their practicality and sustainability.