Hollow nickel-cobalt sulfide nanospheres cathode hybridized with carbon spheres anode for ultrahigh energy density asymmetric supercapacitors

Engineering hierarchical manganese molybdenum sulfide nanosheet integrated cathodes for high-energy density hybrid supercapacitors

“…Moreover, a high energy density of 51.5 W h kg À1 could be maintained at 5437.3 W kg À1 . The energy density reported by our HSC is higher than other similar SCs such as FSNCS//AC (28.8 W h kg À1 at 375 W kg À1 ), 70 NCS-G 3 //G (33.8 W h kg À1 at 799.8 W kg À1 ), 71 ZCS d -9 h//NOPC (28 W h kg À1 at 800 W kg À1 ), 72 Ni-Co-S//CS (65 W h kg À1 at 850 W kg À1 ), 73 NiCoS/d-Ti 3 C 2 //AC (22.6 W h kg À1 at 400 W kg À1 ), 74 Zn-Ni-S//PMCN (52.4 W h kg À1 at 551.7 W kg À1 ), 75 MnCo 2 S 4 // Graphene (32.9 W h kg À1 at 295.2 W kg À1 ), 76 Mn 0.33 Sn 0.67 S 2 // AC(15.68 W h kg À1 at 150.1 W kg À1 ), 77 and MCS-P2//rGO (48.7 W h kg À1 at 386 W kg À1 ), 78 and is also higher than others listed in Table S6 (ESI †). Long-term cycling stability is also a crucial factor for the practical application of HSC, which is performed for consecutive 10 000 GCD cycles at a high current density of 50 mA cm À2 .…”

Advances in Nickel-cobalt Electrode Materials for Supercapacitors

“…Gong, JX [45] synthesized nickel-cobalt sulfide (Ni-CoS) hollow spheres by using the hard template method and hydrothermal method in two steps (Fig. 4).…”

Surface Engineering of Ni wires and Rapid Growth Strategy of Ni‐MOF Synergistically Contribute to High‐Performance Fiber‐Shaped Aqueous Battery

“…In particular, with the rise of lightweight wearable devices, AABs are attracting more attention in the field of novel energy storage systems as it is easier to achieve flexibility, portability and high safety compared to other energy storage devices. [4] In recent years, research into flexible AABs based on carbon cloth, [5] nickel foam, [6] carbon fiber wire, [7] and metal wire [8] has confirmed their suitability for use in intelligent electronic devices, however, achieving high energy density and long lifetime while limiting device size is still a problem to be resolved.…”