Porous framework materials for stable Zn anodes in aqueous zinc-ion batteries

Abstract

Zinc-ion batteries (ZIBs) have attracted widespread research attention because of their safety, cost-effectiveness, and high theoretical capacity; however, challenges related to Zn anodes, such as corrosion in aqueous electrolytes and...

Porous layered ZnV2O4@C synthesized based on a bimetallic MOF as a stable cathode material for aqueous zinc ion batteries

“…It is well known that metal–organic frameworks (MOFs) can serve as self-sacrificial templates for carbon structures and precursors for metal oxides. 25 Vanadium-based composites derived from MOFs can integrate carbon coating, interlayer insertion and morphology control to achieve a uniform distribution of different components (carbon- and vanadium-based oxides) in the derivatives. Of these, the morphology and microstructure of the active materials also play a fundamental role in terms of electrochemical stability and improved performance.…”

“…The formation of this structure is achieved through the coordination of transition metal ions or metal clusters with diverse organic ligands, which can result in a porous structure. 25,26 Based on the advantages of metal organic frameworks as precursors in uniform doping of multiple elements and for pore structure regulation, some researchers have recently designed cathode materials using metal organic frameworks as precursors, such as Mn-MOF, 27 V-MOF, 28 and Zn-MOF, 29 and their various derived morphologies have found extensive applications in the energy storage field. 30,31 For example, Li et al prepared carbon-doped amorphous vanadium pentoxide composites (a-V 2 O 5 @C) by carbonization and in situ electrochemically induced transformation of the precursor using vanadium metal–organic frameworks as precursors.…”

Covalent organic frameworks and their composites for rechargeable batteries

“…have emerged. [5][6][7] However, traditional inorganic materials used in various types of batteries are difficult to obtain at source and have defects such as low theoretical specific capacity. Organic materials have many advantages, such as being ubiquitous in nature, being synthesized into a wide variety of materials through chemical reactions, being able to participate in the multi-step redox reactions required for electrochemistry, being highly designable, and having excellent chemical stability.…”

Application of New COF Materials in Secondary Battery Anode Materials

“…Therefore, COFs, as anode materials of secondary batteries, have better electrochemical properties [ 13 ]. In addition to alkali-ion battery anode materials, COFs are also promising for multivalent ion batteries, like Mg-ion, Ca-ion, and Zn-ion batteries [ 14 , 15 , 16 , 17 ]. Due to adjustable pore size, regular channel structure, and rich redox active sites, COFs may be potential electrode materials for multivalent ion batteries.…”