This paper provides a comprehensive overview of CAES technologies, examining their fundamental principles, technological variants, application scenarios, and gas storage facilities. This technology strategy assessment on compressed air energy storage (CAES), released as part of the Long-Duration Storage Shot, contains the findings from the Storage Innovations (SI) 2030 strategic initiative. First, this paper proposes to use compressed-air energy-storage technology instead of the old energy-storage technology to build an economical and environmentally friendly. As the world transitions to decarbonized energy systems, emerging long-duration energy storage technologies are crucial for supporting the large-scale deployment of renewable energy sources. In this study, a systematic thermodynamic model coupled with a concentric diffusion heat transfer model of the cylindr cal packed-bed LTES is established for.