CuO cathode in lithium cells

α-Fe2O3: Hydrothermal Synthesis, Magnetic and Electrochemical Properties

“…For nanoparticles and nanoparticles-aggregated microcubes, the first discharge capacity is 1438 and 1378 mAh/g, corresponding to 8.57 and 8.2 Li per α-Fe 2 O 3 , respectively. As can be seen, the difference of the lithium storage ability for the three α-Fe 2 O 3 nano-/microstructures is mainly attributed to the different capacity in the region (0.01−0.8 V), which is closely related to the size, shape, and surface area of the samples …”

Synthesis of sheaf-like CuO from aqueous solution and their application in lithium-ion batteries

“…In the discharge curves of the first cycle, there are two obvious potential plateaus around 1.45 and 0.9 V, followed by a gradual decrease in the potential down to 0.02 V. For the 40th and 41st cycles, the amplitude of the plateau is markedly reduced, so that only a discharge slope is observed. The initial discharge capacity of the electrode is 965 mAh/g, which is larger than the normal CuO powders from the decomposition of Cu(OH) 2 of 540 mAh/g [22], and the initial Coulombic efficiency is 98%. Based on a maximum uptake of 2Li/CuO, the theoretical of 674 mAh/g is attained [22].…”

“…The initial discharge capacity of the electrode is 965 mAh/g, which is larger than the normal CuO powders from the decomposition of Cu(OH) 2 of 540 mAh/g [22], and the initial Coulombic efficiency is 98%. Based on a maximum uptake of 2Li/CuO, the theoretical of 674 mAh/g is attained [22]. The large excesses observed in capacity may originate from the decomposition of the electrolyte and subsequent formation of an organic layer deposited on the surface of the particles [23].…”

Preparation and Electrochemical Performance of Polycrystalline and Single Crystalline CuO Nanorods as Anode Materials for Li Ion Battery

“…26 On the other hand, the peak potential near 1.8 V (the actual peak potential depends on the scan rate) in the voltammetric curve is attributed to the presence of some residual OHgroups in the active form of CuO. 25 From the infrared spectra of the nanorods prepared at room temperature and 100 °C (Figure 6), two stronger absorption bands at 1560 and 3470 cm -1 are observed, which are due to the bending vibration and stretching vibration, respectively, of adsorbed water. The stronger infrared absorption of the two bands for the fine nanorods obtained at room temperature suggests that this sample contains much more adsorbed water.…”

“…The large excesses observed in capacity can also originate from the decomposition of the electrolyte and subsequent formation of an organic layer deposited on the surface of the particles that occurs in the low potential region for transition metal oxides . On the other hand, the peak potential near 1.8 V (the actual peak potential depends on the scan rate) in the voltammetric curve is attributed to the presence of some residual OH - groups in the active form of CuO . From the infrared spectra of the nanorods prepared at room temperature and 100 °C (Figure ), two stronger absorption bands at 1560 and 3470 cm -1 are observed, which are due to the bending vibration and stretching vibration, respectively, of adsorbed water.…”