This study provides a comprehensive review of next-generation battery technologies and their critical role in U.S. energy storage, particularly focusing on renewable energy integration and grid stability. The main objectives were to assess the current advancements in battery technology, evaluate their economic viability and environmental impacts, and understand the implications for stakeholders in renewable energy and grid management. Employing a systematic literature review and content analysis, the study analyzed data from peer-reviewed articles, industry reports, and government publications published between 2014 and 2024. Key findings indicate significant progress in battery efficiency, lifespan, and safety, primarily driven by innovations in lithium-ion and sodium-ion batteries. These advancements are pivotal in enhancing energy storage capabilities and facilitating the integration of renewable energy sources into the grid. However, challenges such as material scarcity, environmental concerns, and the need for improved recycling methods were identified. The study also highlights the importance of regulatory frameworks and policies in shaping the development and deployment of these technologies. Strategic recommendations for industry leaders and policymakers include focusing on sustainable material sourcing, investing in alternative battery chemistries, and implementing supportive regulatory frameworks. In conclusion, the study underscores the transformative potential of advanced battery technologies in achieving a sustainable energy future, suggesting future research directions in material development, battery chemistries, and integration with smart grid technologies.