Multifunctional Zeolites in Secondary Batteries

The goal of carbon neutrality requires the development of low-cost, high safety, and high energy density secondary batteries. The comprehensive integration of zeolites into battery design is expected to meet these key requirements. Based on highly adjustable molecular sieve effect, ion conductivity, catalytic properties, etc., goal-oriented zeolite can adapt to inherent differentiation and distinctive expectations of battery components, which achieves solvent structure regulation, stable interface construction, solid-state electrolyte optimization/construction, electrode storage mechanism regulation, etc., thereby improving various battery performance. Therefore, a comprehensive review is essential to reveal the universal applicability and multifunctionality of zeolites in batteries. This review first summarizes the structures, classifications, properties and synthesis route, and the application roadmap of zeolites is systematically described in chronological order. Most importantly, based on the elucidation of zeolite-involved physical and electrochemical behavior in electrolytes, interface, electrode, and separators optimization, we systematically analyze the structure–property–performance relationship and design principles of zeolite-integrated batteries. In addition, the scientific deficiencies, engineering challenges and possible future research directions of zeolite-integrated secondary batteries are summarized and discussed in depth. This review aims to provide guidance and new perspectives for the future research and application of emerging zeolite-based batteries.