Intercalation pseudocapacitance in 2D N-doped V₂O₃ nanosheets for stable and ultrafast lithium-ion storage

Abstract

Vanadium oxides have attracted massive attention for Li-ion batteries (LIBs) because of their eminently high specific capacity. However, their cycling life and rate capability are limited in practical applications due...

In situgrowth of amorphous vanadium oxide nanospheres on carbon cloth as free-standing cathodes used in high performance aqueous zinc-ion batteries

“…4,5 Vanadium-based materials are attractive Zn-ion host materials due to their interconvertible and abundant oxidation states, large ion transport channels, natural abundance, and variety of different crystal structures. [6][7][8] To date, numerous vanadium-based materials possessing crystalline structures have been explored as cathodes for AZIBs, including V 10 O 24 •nH 2 O, 9,10 V 2 O 5 , 11,12 V 2 O 3 , [13][14][15] and VO 2 . [16][17][18] However, the tunnel-type or layered vanadium-based oxides are made up of crystalline frameworks, which are insufficient for accommodating the structural strain brought on by ion diffusion or supplying enough active sites for the charge storage process.…”

“…To date, numerous vanadium-based materials possessing crystalline structures have been explored as cathodes for AZIBs, including V 10 O 24 · n H 2 O, 9,10 V 2 O 5 , 11,12 V 2 O 3 , 13–15 and VO 2 . 16–18 However, the tunnel-type or layered vanadium-based oxides are made up of crystalline frameworks, which are insufficient for accommodating the structural strain brought on by ion diffusion or supplying enough active sites for the charge storage process.…”