Prospects of Alkali Metal–Se Batteries and Beyond: From Redox Mechanisms to Electrode Design
Jimin Park, Hyerim Kim, Arcangelo Celeste, Hyeona Park, Shivam Kansara, Rosaceleste Zumpano, Vanessa Piacentini, Sergio Brutti, Aleksandar Matic, Marco Agostini, Jang‐Yeon Hwang
Abstract
High Resolution Image Download MS PowerPoint Slide Selenium-based alkali metal systems offer significant potential for surpassing commercial Li-ion systems in volumetric energy density (3,253 vs 1,000 mAh cm –3 ). However, challenges remain in electrode design, solid electrolyte interface stability, and mitigating active material dissolution. This review explores redox mechanisms, electrode architectures, and electrolyte strategies for enhancing performance, with a focus on Li, Na, K anodes and beyond. Advances in computational and experimental studies are discussed, highlighting key issues and future research directions to address scalability and improve stability, making Se-based batteries promising candidates for sustainable energy storage.