Recent Advances in Covalent Organic Framework Electrode Materials for Alkali Metal-Ion Batteries

Flexible covalent organic framework membranes with linear aliphatic amines for enhanced organic solvent nanofiltration

“…23 Due to their ordered aperture sizes, high surface area, layered channels, and structural diversity, COFs have found applications in gas separation and storage, catalysis, electrochromic devices, adsorption, and metal-ion batteries. 24–27 Their higher crystallinity and molecular architecture make them stable under a wide range of solvents, acids, and bases, making them an attractive material for developing high-performance OSN membranes. 3,28–30 Unlike graphene and other polymeric membranes, COFs have inherent permanent porosity without any post-treatment, which makes them suitable for controlling pore size by selecting appropriate building blocks.…”

Waste Hemp Hurd as a Sustainable Precursor for Affordable and High-Rate Hard Carbon-Based Anodes in Sodium-Ion Batteries

“…In spite of these shared features, developing SIBs still requires intensive research efforts aimed at, among other things, finding high-performance electrode materials. 5 For the anode (or negative electrode), where graphite (which is extensively used in commercial LIBs) is not suitable due to thermodynamic issues, 6 hard carbons (HCs) have been widely considered as promising candidates since they can provide a number of active sites to reversibly store sodium ions. This is because HCs keep highly disordered structures with randomly oriented pseudographitic domains, some residual heteroatoms, and larger interlayer spacing (in comparison with graphitic carbons).…”

“…Both elements have similar standard reduction potentials (−3.04 V vs SHE for Li + /Li and −2.71 V vs SHE for Na + /Na) and tend to lose an electron from the outer energy level. In spite of these shared features, developing SIBs still requires intensive research efforts aimed at, among other things, finding high-performance electrode materials . For the anode (or negative electrode), where graphite (which is extensively used in commercial LIBs) is not suitable due to thermodynamic issues, hard carbons (HCs) have been widely considered as promising candidates since they can provide a number of active sites to reversibly store sodium ions.…”

Electrolytic Graphene Encapsulated CeO2 for Lithium–Sulfur Battery Interlayer Separator

“…At the same time, we are facing some challenges: (i) insulation of sulfur and sulfur species, (ii) “shuttle effect” caused by LiPSs, and (iii) sulfur bulk effect (79%) . These issues constrain the rapid commercialization of lithium–sulfur batteries. ,− …”