A metal–organic framework-modified separator enables long cycling lithium-ion capacitors with asymmetric electrolyte design

As porous coordination organic polymers, both metal–organic frameworks (MOFs) and their derived materials and MOF‐based composites offer unique organic or inorganic chemistries that display superior features of high specific surface area, accessible active sites, robust structural and chemical diversity, tailorable pore size, exceptional porosity, and pre‐ and postsynthesis structural tunability. Therefore, MOF‐based materials are attractive for energy storage applications, specifically for supercapacitor devices. This review presents recent progress in designing and utilizing pristine MOFs, MOF‐derived nanomaterials, and MOF‐based composite materials for supercapacitors. Most importantly, herein, recent highlights and classifications of electrolytes and their vital role in the structure–property correlation between the structures of MOF‐based materials and suitable electrolyte choices for ideal supercapacitor devices are discussed. Finally, together with a discussion of the progress and outcomes of MOF electrodes, the obstacles and prospects for future MOF‐related research and applications are discussed. To help this intriguing topic continue to advance, this review offers useful insights into the logical design of MOF‐based electrode materials.

show abstract

“…[196] 3 UiO-66@PVDF-HFP TiO 2 //AC SIHC 1 182 5280 10 000 [197] 4 Glass fiber@ZIF-7 Li 2 TiSiO 5 //AC LIHC 2 238. 56 14 295 4000 [198] 5…”

Section: Mofs and Their Derived Materialsmentioning

confidence: 99%

Recent Progress on Functional Metal–Organic Frameworks for Supercapacitive Energy Storage Systems

Bhosale

Vadiyar

et al. 2023

Energy Tech

View full text Add to dashboard Cite

show abstract

“…[99,100] It is advisable to improve the separator performance by modification as a coping strategy. [101][102][103] Min et al have used non-solvent induced phase separation to synthesize a range of OPBI@COF separators with different COF content of 0, 10, and 20 wt %, named as PP, OPBI, OPBI@COF10, and OPBI@COF20, respectively. [73] The OPBI@COF separators exhibited differential performance in surface structure, porosity, flexibility, wettability, thermal stability, and ion conductivity because of the variation of COF content, which proves the introduction of COFs can effectively improve the electrochemical performance by the formation of an interconnection network between COF and OPBI matrix.…”

Section: Lithium-ion Batteriesmentioning

confidence: 99%

“…Nevertheless, some problems limit the development of LIBs, such as the increase of impedance, capacity decay, and the risk of overheating and explosion [99,100] . It is advisable to improve the separator performance by modification as a coping strategy [101–103] . Min et al.…”

Section: Applications In Lithium‐based Batteriesmentioning

confidence: 99%

Application of Metal/Covalent Organic Frameworks in Separators for Metal‐Ion Batteries

Song

Liu

2023

ChemNanoMat

View full text Add to dashboard Cite

Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) are two emerging families of functional materials that have found widespread applications in various fields. With the unique features of large surface area, tunable pore structure, high porosity, and easy surface functionalization, they are considered a kind of promising separators candidates for novel separators in rechargeable batteries. Over the years, many studies on the application of MOF/COF‐based separators have been reported with excellent performance. Herein, we highlight the recent progress of MOF/COF separators for advanced batteries. Firstly, the key properties of MOF/COF separators are presented. Then, we summarize the fabrication methods of MOF/COF separators. Afterward, an overview of the applications of MOF/COF based separators in lithium‐based batteries, sodium‐based batteries, and other secondary batteries. Finally, we present a summary and future outlook of MOF/COF separators, including their potential and current challenges.

show abstract

“…In a recent report, ZIF-7 was used in the modification of glass fiber separators to suppress the shuttle effect of soluble redox mediators. 88 This confinement effect comes from the physical obstruction and chemisorption of ZIF-7, the micropores of ZIF-7 restrict the diffusion of soluble redox mediators, and the chemisorption prevents their intergranular migration. This synergy allows LIHCs to display high energy density and long-term cycling stability.…”

Section: Mof Composites For Mihcsmentioning

confidence: 99%

Metal–organic frameworks and their derivatives for metal-ion (Li, Na, K and Zn) hybrid capacitors

Zhan

Wang

et al. 2022

Chem. Sci.

View full text Add to dashboard Cite

show abstract

A metal–organic framework-modified separator enables long cycling lithium-ion capacitors with asymmetric electrolyte design

Abstract: The introduction of redox mediators, for example lithium iodide (LiI), into the catholyte of lithium-ion capacitors (LICs) could provide extra capacity through the iodide-involved redox reactions, allowing an alternative strategy...

Cited by 12 publications

References 64 publications

Recent Progress on Functional Metal–Organic Frameworks for Supercapacitive Energy Storage Systems

Recent Progress on Functional Metal–Organic Frameworks for Supercapacitive Energy Storage Systems

Application of Metal/Covalent Organic Frameworks in Separators for Metal‐Ion Batteries

Metal–organic frameworks and their derivatives for metal-ion (Li, Na, K and Zn) hybrid capacitors

Contact Info

Product

Resources

About