Ionic liquid-loaded covalent organic frameworks with favorable electrochemical properties as a potential electrode material

Challenges and strategies for imidazolium ionic liquids as novel phase change materials for low and medium temperature thermal energy storage: A critical review

“…A series of work have been carried out to understand the confinement effect since then. Ionic liquids trapped in the nanoporous matrices of encapsulation shell belongs to three-dimensional restricted area, which covers the host matrix of metalorganic frameworks [161][162][163] , covalent organic frameworks [164][165][166] , nanoporous silicas (SiO2) [167,168] and carbons [169,170] , carbon nanotubes [171][172][173] , zeolites [174][175][176] , etc. Among these porous materials, nanoporous silicas (average pore sizes of 2.0 ~ 34.3 nm) is the most popular one due to their interconnected nanoporous structure, large surface area, high thermal/mechanical stability, nontoxicity and easy synthesis.…”

Covalent Organic Framework‐based Solid‐State Electrolytes, Electrode Materials, and Separators for Lithium‐ion Batteries

“…Ionic liquid (IL) is a type of organic molten salt with a melting point below 100 °C and entirely composed of liquid phase ions, which feature high ionic conductivity, low volatility, high thermal stability and chemical stability, and low vapor pressure. [91][92][93][94] Over the last two decades, the modification of porous materials by using IL has been studied extensively. More importantly, owing to the excellent ionic conductivity of IL, it has been widely used as ionic conductor in COF-based solidstate electrolytes.…”

Ion-transporting channel-embedded MOF-in-COF structures as composite quasi-solid electrolytes with highly enhanced electrochemical properties

“…26 Using a COF as a host, confining IL inside the pore forms a combined phase of COF-IL which improves ionic conductivity and electrode–electrolyte interfacial compatibility through a ‘wetting’ effect. 27,28 However, for the use of COF-IL in practical battery applications, performance of COF-IL composite materials as QSSEs must be enhanced as most of them have displayed limited ionic conductivity and lithium-ion transference number at room temperature. 29 This is mainly due to the inclusion of the CN functional group in the COF structure, which allows it to store Li, and simultaneously results in a constraint on COF's effectiveness as a QSSE.…”