
Small, Journal Year: 2025, Volume and Issue: unknown
Published: April 17, 2025
Abstract Sodium‐ion batteries (SIBs) gain attention as a promising, cost‐effective, and resource‐abundant alternative, especially for large‐scale energy storage. Cathode materials play pivotal role in improving the electrochemical performance of SIBs, with high‐voltage cathodes providing enhanced density rate capacity, making SIBs suitable high‐power applications. Common cathode materials, such layered transition metal oxides, polyanionic compounds, Prussian blue analogs, each offer unique benefits. However, these face challenges under conditions, phase transitions, cation migration, oxygen loss, electrolyte degradation. This review discusses strategies to address challenges, including elemental doping, surface coatings, modified synthesis methods, interfacial adjustments, all aimed at enhancing stability materials. Here also explores how full‐cell design optimizations can further improve power density. By analyzing material degradation failure modes, this offers insights into development stable, high‐performance better safety broader application potential storage technologies.
Language: Английский