
Advanced Energy Materials, Год журнала: 2025, Номер unknown
Опубликована: Июнь 1, 2025
Abstract Sodium‐ion batteries (NIBs) emerge as promising alternatives to lithium‐ion due sodium's abundance, low cost, and sustainability. However, NIBs face challenges such lower energy density, electrode material compatibility, long‐term stability. Anode‐free sodium (AFNBs) address these limitations by eliminating the pretreatment anode, using a current collector for plating stripping, thus increasing density simplifying manufacturing. Several types of AFNBs, including anode‐free Na‐metal, Na‐solid‐state, Na‐air/CO 2 batteries, are under development, each targeting specific electrochemical challenges. Na‐metal offer high but suffer from dendrite formation unstable solid‐electrolyte interphase (SEI). Na‐solid‐state enhance safety issues with interfacial resistance limited ionic conductivity. promise exceptional densities still in early stages, struggle Na lose stability concerns. Interface engineering plays crucial role overcoming challenges, particularly controlling deposition, stabilizing SEI, minimizing side reactions. Research focuses on optimizing interface through surface modifications, electrolyte composition, protective coatings suppress cycling This review highlights latest advancements explores future directions aiming develop high‐energy‐density, durable, safe sodium‐based storage systems.
Язык: Английский