Yang: Explore the effects of microstructural defects on voltage fade of Li- and Mn-rich cathodes. Wang: Suppressed capacity/voltage fading of high-capacity lithium-rich layered materials via the design of heterogeneous distribution in the composition. Axelbaum: Structural and electrochemical study of Al 2O 3 and TiO 2 coated Li 1.2Ni 0.13Mn 0.54Co 0.13O 2 cathode material using ALD. Zhao: Cycle performance improvement of Li-rich layered cathode material LiO 2 by ZrO 2 coating. Hu: Ion conducting Li 2SiO 3-coated lithium-rich layered oxide exhibiting high rate capability and low polarization. Yin: Oxygen vacancies in SnO 2 surface coating to enhance the activation of layered Li-Rich Li 1.2Mn 0.54Ni 0.13Co 0.13O 2 cathode material for Li-ion batteries. Huang: Mitigating voltage and capacity fading of lithium-rich layered cathodes by lanthanum doping. Liang: Enhanced electrochemical performance of Li-rich Li 1.2Mn 0.52Co 0.08Ni 0.2O 2 cathode materials for Li-ion batteries by vanadium doping. Dai: Improving rate capability and decelerating voltage decay of Li-rich layered oxide cathodes via selenium doping to stabilize oxygen. Lu: Retarded phase transition by fluorine doping in Li-rich layered Li 1.2Mn 0.54Ni 0.13Co 0.13O 2 cathode material. Li: K +-doped Li 1.2Mn 0.54Co 0.13Ni 0.13O 2: A novel cathode material with an enhanced cycling stability for lithium-ion batteries. Yang: Magnesium-doped LiO 2 for lithium-ion battery cathode with enhanced cycling stability and rate capability. Lu: Advances in sustain stable voltage of Cr-doped Li-rich layered cathodes for lithium ion batteries. Hardwick: Characterization of aluminum doped lithium-manganese rich composites for higher rate lithium-ion cathodes. Gao: Sn-stabilized Li-rich layered Li(Li 0.17Ni 0.25Mn 0.58)O 2 oxide as a cathode for advanced lithium-ion batteries. Meng: Uncovering the roles of oxygen vacancies in cation migration in lithium excess layered oxides. Zhang: Structural and chemical evolution of Li- and Mn-rich layered cathode material. Abraham: Understanding long-term cycling performance of Li 1.2Ni 0.15Mn 0.55Co 0.1O 2-graphite lithium-ion cells. Cho: Superior long-term energy retention and volumetric energy density for Li-rich cathode materials. Chi: Probing the initiation of voltage decay in Li-rich layered cathode materials at atomic scale. Delmas: Reversible oxygen participation to the redox processes revealed for Li 1.20Mn 0.54Co 0.13Ni 0.13O 2. Sun: Nickel-rich and lithium-rich layered oxide cathodes: Progress and perspectives. Density functional theory (DFT) predictions suggest that the observed lattice expansion is an indication of increased oxygen vacancy concentration and may be due to the Si doping.Ī. The superior capacity likely results from the increased lattice parameters as determined by X-ray diffraction (XRD) and the lower resistance during the first cycle found by impedance and direct current resistance (DCR) measurements. Furthermore, the doped material exhibits a 10% higher capacity relative to the control. Raman and differential capacity analyses suggest that silicon doping improves the structural stability during electrochemical cycling. To address this, Si doping was applied, resulting in improved stability. However, structural stability prevents their commercial adoption. LiO 2 (M = Ni, Mn, Co) (HE-NMC) materials, which can be expressed as a combination of trigonal LiTMO 2 (TM = transition metal) and monoclinic Li 2MnO 3 phases, are of great interest as high capacity cathodes for lithium-ion batteries.
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