Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 22, 2025

Abstract Sodium‐ion batteries (SIBs) have emerged as a promising candidate for next‐generation energy storage systems owing to their inherent cost advantages. Nevertheless, the practical implementation of SIBs faces critical limitations in density compared commercial lithium‐ion (LIBs), posing significant barrier widespread applications. Enhancing through both development high specific cathode materials and elevated operational voltages represents dual‐pronged strategic approach. However, voltage elevation typically accelerates system degradation multiple mechanisms including accelerated electrolyte decomposition, loss reactive oxygen, particle cracking, transition metal cation (TM n+ ) migration deposition. This review summarizes key challenges from operated at high‐voltages, discuss main strategies overcome these terms layered oxide design. The purpose this is shed light on fundamental science behind challenges, provide potential solutions achieving goal high‐energy SIBs.

Язык: Английский