Flower-like Nickel Oxide Nanocomposites Anode Materials for Excellent Performance Lithium-ion Batteries

CuCr2O4@rGO Nanocomposites as High-Performance Cathode Catalyst for Rechargeable Lithium–Oxygen Batteries

“…Recently, ruthenium oxide-coated ordered mesoporous carbon nanofiber arrays which were synthesized as a catalyst for LOBs presented a very long cycle stability of over 300 cycles at a current density of about 250 mA g −1 with limited capacity of 1000 mAh g −1 . This high-performance cathode catalyst which belongs to the family of the rare ruthenium metal has been investigated by other researchers [47]. …”

“…Following the charge process, the CCO nanoparticles showed superior catalytic properties, leading to the easy decomposition of Li 2 O 2 . Meanwhile, the graphene substrate, which was curled on the CCO surface, acted as a better electrical conductor for providing rapid transmission [47, 49–51]. With the good catalytic performance of CCO nanoparticles and the great electronic transmission capacity of rGO nanosheets, the lithium peroxide films were decomposed at a lower potential charge of 3.56 V.…”

Hierarchical NiO nanobelt film array as an anode for lithium-ion batteries with enhanced electrochemical performance

“…This performance of the NiO nanobelt lm array is superior to that obtained in previous reports, as shown in Table 1. 26,[33][34][35][36][37][38][39][40] The specic capacity continuously increased due to the constant activation of active material and the reversible generation of a polymeric gel-like layer originating from kinetic activation in the electrode, 41,42 which is characteristic for anode materials. For the NiO powder nanoparticles, the discharge and charge capacity quickly decreased to only 440.1 mA h g À1 and 401.3 mA h g À1 , respectively, aer 70 cycles at the corresponding 0.2C rate, which was due to the particle structure suffering severe damage, suggesting that the NiO nanobelt lm array structure is more benecial for ion transport and contact between electrode and electrolyte interface because of its superior geometric characteristics.…”

Investigation of Cu doped flake-NiO as an anode material for lithium ion batteries

“…10b) and these results are similar with those previous researches. 34,35 Although the shapes of the three CV curves do not have an obvious distinction, the strength of the peaks is closely impacted by the calcination temperature of the samples. The strength of the couple peaks of the conversion between NiO and Ni increases when the calcination temperature rises to 400 C, and dramatically decreases when the temperature reaches 450 C. This is ascribed to the different electrochemical performances of the three electrodes: good performance with stronger peaks.…”