A rod-on-tube CoMoO4@hydrogel composite as lithium-ion battery anode with high capacity and stable rate-performance

Flexible Films as Anode Materials Based on rGO and TiO2/MnO2 in Li-Ion Batteries Free of Non-Active Agents

“…Currently, the most commercially used anode material is graphite, with a maximum theoretical capacity of 372 mAh/g [5]. Hence, many researchers developed new anode materials with higher capacities, such as transition-metal oxides [6,7] or other carbon-based materials, such as graphene, carbon nanotubes [8,9] and their composites [10,11]. Graphene and its derivatives have many distinctive properties, such as a large specific surface area (2630 m 2 /g) [12], a high thermal conductivity (3000-5000 W/mK) [13] and a high carrier mobility at room temperature (~10,000 cm 2 /Vs) [14].…”

Se vacancy-driven nickel cobalt selenide electrode enhancing reaction kinetics for boosting supercapacitive performance

“…6(g) shows that the density of states (DOS) around the V 2 -NiCo 2 Se x Fermi energy level is stronger than that of pure-NiCo 2 Se 4 , indicating that the coordination environment of NiCo ions changes to form more active electronic states, resulting in a higher charge density for V 2 -NiCo 2 Se x . 66–68 It was further discovered by PDOS (Fig. 6(h)) that these active electronic states are mainly provided by the d orbitals of Co and Ni, which significantly increases the chemical activity of the surface of the material and accelerates the reaction kinetics.…”

One-step preparation of binder-free WO3 CNFs/GO self-supported electrodes

“…Transition metal oxides have attracted considerable attention because of their high theoretical specific capacity. [7][8][9][10][11][12][13] The selection of electrode materials for LIBs requires rich mesoporous conditions and a high specific surface area, which can facilitate the penetration of lithium ions in the electrolyte and provide more storage sites. WO 3 has been widely used in semiconductors, photocatalysis and gas sensing owing to its excellent framework structure, and it also has a high theoretical capacity that makes it a very attractive electrode material.…”