ACS Appl Mater Interfaces 10:8692–8701Īrdhi REA, Liu G, Tran XM, Hudaya C, Kim JY, Yu H, Lee JK (2018) Self-relaxant super-elastic matrix derived from C60 incorporated Sn nanoparticles for ultra-high-performance Li-ion batteries.
Kim JY, Kim AY, Liu G, Woo JY, Kim H, Lee JK (2018) Li 4SiO 4-based artificial passivation thin film for improving interfacial stability of Li metal anodes. Woo JY, Kim AY, Kim MK, Lee SH, Sun YK, Liu G, Lee JK (2017) Cu 3Si-doped porous-silicon particles prepared by simplified chemical vapor deposition method as anode material for high-rate and long-cycle lithium-ion batteries. Zhou H, Ding X, Liu G, Jiang Y, Yin Z, Wang X (2015) Preparation and characterization of ultralong spinel lithium manganese oxide nanofiber cathode via electrospinning method. Moreover, the formation of the spinel structure is beneficial to stabilize the crystal lattice of the bulk material and facilitate Li + diffusion by unique 3D transport channels. Such improvements are mainly ascribed to the oxygen vacancies in nano-CeO 2 coating layer, which are responsible for the promoted activation of Li 2MnO 3. It is worth noting that this modified strategy greatly reduces the irreversible capacity loss (ICR) of the first cycle of active materials, the ICR of the C3 (44.8 mAh g −1) is markedly lower than pristine material (82.9 mAh g −1) at the current density of 12.5 mA g −1 (0.05 C). The electrochemical testing results show that Li 1.2Mn 0.54Ni 0.13Co 0.13O 2 with 4 wt% CeO 2 coating (denoted as C3) has good rate capability and enhanced cyclic stability, enhanced initial discharge capacity of 298.5 mA h g −1 (0.05 C) compared to 281.9 mAh g −1, and excellent initial coulombic efficiency of 86.94% compared to 77.28% for the pristine one in the potential range 2.0–4.8 V (vs. It is revealed that the synthesized nano-CeO 2 material has rich oxygen vacancies, and a spinel-phase layer is formed on the surface of host material.
Thus, obtained nano-CeO 2-coated Li 1.2Mn 0.54Ni 0.13Co 0.13O 2 material was characterized by XRD, SEM, and TEM. This work reports the surface coating of Li 1.2Mn 0.54Ni 0.13Co 0.13O 2 cathode material with nano-CeO 2 by a versatile hydrothermal method.
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