The recent progress and perspectives on metal- and covalent-organic framework based solid-state electrolytes for lithium-ion batteries

Abstract

Lithium ion battery (LIB) has been widely used in new energy vehicles, large-scale energy storage, intelligent electronic equipment for its excellent electrochemical performance. Facing the increasing demands on good safety and high energy density, solid-state batteries as an important candidate, has become a hot spot in research of LIBs. Developing high-performance solid-state electrolytes is the key to realizing application of solid-state LIBs. Metal organic frameworks (MOFs) or covalent organic frameworks (COFs) is a kind of crystal material with regular channels and ultra-high specific surface area, providing promising structural platform for designing fast ionic conductor materials. Recently, researchers have designed and synthesized multi-types of MOF-and COF- based solid-state electrolytes (SSE) with excellent performance. The recent progress, prospects and challenges on MOF-/COF-based SSEs will be systematically introduced, and some unique materials with specific characteristics or high conducting properties of other metals (sodium, zinc or magnesium) ions will also be highlighted in this review