Recent research highlights significant advancements in battery chemistries, supercapacitors, hydrogen storage, and thermal energy systems; however, persistent challenges such as high manufacturing costs, limited cycle life, low energy density, and environmental impacts continue to hinder. . Recent research highlights significant advancements in battery chemistries, supercapacitors, hydrogen storage, and thermal energy systems; however, persistent challenges such as high manufacturing costs, limited cycle life, low energy density, and environmental impacts continue to hinder. . Energy-storage technologies have rapidly developed under the impetus of carbon-neutrality goals, gradually becoming a crucial support for driving the energy transition. This paper systematically reviews the basic principles and research progress of current mainstream energy-storage technologies. . $15M OE funding opportunity for pre-competitive R&D partnerships. What RD&D Pathways get us to the 2030 Long Duration Storage Shot? DOE, 2022 Grid Energy Storage Technology Cost. . The rapid global shift toward renewable energy has made efficient and reliable energy storage technologies (ESTs) essential for addressing the intermittency of solar, wind, and other clean energy sources.