Designing graphene-wrapped NiCo₂Se₄ microspheres with petal-like FeS₂ toward flexible asymmetric all-solid-state supercapacitors

Abstract

An effective and accessible method is demonstrated for the construction of electrodes from graphene-wrapped NiCo2Se4 microspheres and petal-like FeS2 with excellent durability for flexible all-solid-state asymmetric supercapacitors.

Designing an Advanced Supercapattery Based on CuCo2S4@Ni−Mo−S Nanosheet Arrays

“…[1][2][3][4][5][6] SCs are considered as one of the intriguing candidates for next-generation ESDs owing to their obvious merits like considerable power density, amazing robustness, and rapid charging-discharging rate, but the relatively insignificant specific energy restricts their usages. [7][8][9][10][11] Conversely, batteries have great specific energy, but low power density. [12,13] An ESD based on a capacitive electrode (e. g. AC) and battery-type electrode (e. g. metal oxide or metal sulfide) named supercapattery, proposes a promising approach to design system with merits of SCs and batteries.…”

Facile one-pot synthesis of NiCo2Se4-rGO on Ni foam for high performance hybrid supercapacitors

“…Recently, transition metal-based compounds have been widely investigated in several electrochemical applications such as full water splitting, [42][43][44][45] non-enzymatic glucose sensing, 46,47 and supercapacitors [48][49][50] due to their abundance, cost-effectiveness, good electrical conductivity, excellent electrocatalytic activity and more importantly redox tunability. Very recently, transition metal chalcogenides (TMCs), in particular, selenide-based compounds have been extensively investigated as potential electrocatalysts in energy conversion devices, wherein, their electrocatalytic performance was signicantly improved owing to the tunable redox properties of the active transition metal catalytic center.…”

Bi‐Metal (Zn, Mn) Metal–Organic Framework–Derived ZnMnO3 Micro‐Sheets Wrapped Uniformly with Polypyrrole Conductive Network toward High‐Performance Li‐Ion Batteries

“…At present, Li-ion batteries (LIBs) as attractive energy-storage devices have been widely applied in electric vehicles (EVs), hybrid EVs, mobile phones, laptops, and other electric products in view of their versatile advantages. [1][2][3][4][5] Moreover, the gradually increasing market requirement for the rechargeable LIBs with even higher discharge capacity hugely inspires the enormous research interest in exploring novel high-performance electrode materials. [6,7] Especially, mixed transitionmetal oxides (TMOs), have garnered widespread attention and substantial researches as anodes for LIBs due to their large theoretical capacities, about twice of the commercial graphite-based anodes, [8][9][10] with the ever-growing demand of advanced anodes for next-generation LIBs.…”