Advancing NASICON-type materials through high-entropy strategy: Synthesis and applications

High-entropy materials (HEMs) have emerged as a promising frontier in electrochemical energy storage systems due to their unique compositional versatility and tunable physicochemical properties. By incorporating multiple principal elements with distinct chemical functionalities, HEMs exhibit tailored electronic/ionic configurations, enabling unprecedented structural adaptability and application potential. This review systematically analyzes the fundamental principles underpinning the entropy-driven optimization of electrochemical performance in battery materials, with a focus on the interplay between compositional disorder and functional enhancements. For the first time, we comprehensively review recent advances in NASICON-type HEMs spanning cathodes, solid-state electrolytes, and anodes. Through investigations, the profound impact of high-entropy strategies on critical material parameters were elucidate, including lattice strain modulation, interfacial stability reinforcement, charge-transfer kinetics optimization, and ion transport pathway regulation. Furthermore, we evaluate the current challenges in high-entropy NASICON-type battery design and propose actionable strategies for advancing next-generation high-entropy battery systems, emphasizing rational compositional screening, entropy-stabilized interface design, and machine learning-assisted property prediction.