Facile preparation of praseodymium oxide coated peanut-like lithium nickel cobalt manganese oxide microspheres for lithium ion batteries with high voltage capabilities

Improved rate performance of nanoscale cross-linked polyacrylonitrile-surface-modified LiNi0.8Co0.1Mn0.1O2 lithium-ion cathode material with ion and electron transmission channels

“…10a, in which the Z ′(Ohm) axis intercept is the solution resistance ( R s ), and the semicircle is attributed to the charge transfer resistance ( R ct ), while the diagonal line below corresponds to Li + diffusion in the solid material. 55 The resistance of NCM811 is due to the destruction of the interfacial structures of the active material during charging and discharging caused by transition metal dissolution, SEI film disruption and the creation of disordered phase structures. 56 However, surface degradation was effectively mitigated by the coating of cPAN, with a reduction R ct reduced from 158.21 Ω to 130.63 Ω, as shown in Fig.…”

Surface modification of LiNi 0.5 Co 0.2 Mn 0.3 O 2 cathode materials with Li 2 O‐B 2 O 3 ‐LiBr for lithium‐ion batteries

“…To solve these issues, some strategies (such as surface modification and ion doping) have been employed to improve NCM523 . Metal oxides (such as Al 2 O 3 , ZnO, and TiO 2 ), fluorides (such as LiF and AlF 3 ), and phosphates are commonly used as coating materials to protect the electrode material by preventing it from contacting electrolyte . Furthermore, to obtain better lithium‐ion conductivity, superionic conductors were explored as the coating materials .…”

“…14 Metal oxides [15][16][17] (such as Al 2 O 3 , ZnO, and TiO 2 ), fluorides 18,19 (such as LiF and AlF 3 ), and phosphates 20 are commonly used as coating materials to protect the electrode material by preventing it from contacting electrolyte. 21,22 Furthermore, to obtain better lithium-ion conductivity, superionic conductors were explored as the coating materials. 23,24 One of the most common lithium superionic conductors is lithium boron oxide, Li 2 O-2B 2 O 3 (LBO).…”

Enhancement of the catalytic activity of Suzuki coupling reactions by reduction of modified carriers and promotion of Pd/H2-PrxOysurface electron transfer

“…As shown, the diffractogram of the carrier Pr x O y nanotubes exhibits reflections at 28.251, 32.741, 47.001, 55.711, 58.421, 68.591, 75.731, 78.081, and 87.271, which can be assigned to the cubic fluorite structure Pr 6 O 11 phase (PDF#42-1121). [34][35][36][37][38] No significant differences were observed in the SEM, TEM and XRD images of the three resulting catalysts, suggesting that the three samples have similar morphology, crystalline phase, crystallinity and particle size. In comparison with the Pr x O y carriers, the main peak values of Pr 6 O 11 for all three Pd-loaded catalysts were found to be slightly shifted towards a higher angle.…”