AUTHOR=Urgoiti-Rodriguez Maitane , Vaquero-Vílchez Saloa , Mirandona-Olaeta Alexander , Fernández de Luis Roberto , Goikolea Eider , Costa Carlos M. , Lanceros-Mendez Senentxu , Fidalgo-Marijuan Arkaitz , Ruiz de Larramendi Idoia TITLE=Exploring ionic liquid-laden metal-organic framework composite materials as hybrid electrolytes in metal (ion) batteries JOURNAL=Frontiers in Chemistry VOLUME=10 YEAR=2022 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2022.995063 DOI=10.3389/fchem.2022.995063 ISSN=2296-2646 ABSTRACT=

This review focuses on the combination of metal-organic frameworks (MOFs) and ionic liquids (ILs) to obtain composite materials to be used as solid electrolytes in metal-ion battery applications. Benefiting from the controllable chemical composition, tunable pore structure and surface functionality, MOFs offer great opportunities for synthesizing high-performance electrolytes. Moreover, the encapsulation of ILs into porous materials can provide environmentally benign solid-state electrolytes for electrochemical devices. Due to the versatility of MOF-based materials, in this review we also explore their use as anodes and cathodes in Li- and Na-ion batteries. Finally, solid IL@MOF electrolytes and their implementation into Li and Na batteries have been analyzed, as well as the design and advanced manufacturing of solid IL@MOF electrolytes embedded on polymeric matrices.