Fabrication and lithium storage performance of three-dimensional porous NiO as anode for lithium-ion battery

Facile Synthesis of Porous MnO Microspheres for High‐Performance Lithium‐Ion Batteries

“…It can be seen that, for the fi rst discharge, there are three discharge plateaus at the voltages about 1.2, 0.7, and 0.3 V, which correspond to the formation of the SEI layer and the electrochemical reduction of the material. [ 12,13 ] As shown in Figure S5b (Supporting Information), the fi rst discharge curve of the Mn 3 O 4 /MnCO 3 composite electrode is almost consistent with that of the porous MnO microspheres electrode, except for that there are two charge plateaus at the voltages about 1.2 and 2.2 V for the former and only one at 1.2 V for the latter. It is known that the charge plateaus at 1.2 and 2.2 V correspond to the reductions of Mn 0 to Mn 2+ and Mn 2+ to Mn 3+ , respectively.…”

“…The large capacity loss in the second cycle is mainly attributed to the irreversible processes such as electrolyte decomposition and inevitable formation of the SEI layer. [ 12,13 ] The capacity increases to 814.5 mA h g −1 in the 45th cycle, and then gradually decreases to 695.5 mA h g −1 in the 88th cycle. After that, however, the capacity monotonously increases to 1234.2 mA h g −1 in the 300th cycle, which is much higher than the theoretical capacity (755.6 mA h g −1 ) of MnO as an anode material.…”

Nanosheets-based ZnO–NiO microspheres for lithium-ion batteries

“…Some small anodic peaks at 0.27, 0.68, 1.38, 1.59, 1.81 V were also found in the curve. Significantly different from that of the first cycle, a new cathodic peak appears at 0.88 V, and the anodic polarization shows a broad peak at 2.24 V in the subsequent cycles, mainly corresponding to the decomposition and formation of NiO [25]. The difference of the subsequent cathodic curves from the first one is mainly due to the irreversible phase transformation during lithium insertion and extraction in the initial cycle.…”

An acid-treated reduced graphene oxide/Mn3O4 nanorod nanocomposite as an enhanced anode material for lithium ion batteries

“…0.35 V because of the structural transformations during the rst discharge. 13,[44][45][46][47] The anodic peak at 1.3 V corresponds to the oxidation of Mn to MnO. 16 For the Mn 3 O 4 NR electrode, this peak intensity decreases drastically which means the poor reversibility.…”