ACS Applied Materials & Interfaces · 2022 · 18 citations · 55 references
Natural SciencesMaterials EngineeringMaterials ScienceElectrochemistryEnergy MaterialsMaterials ChemistryBattery MaterialsCathode MaterialsElectrochemical CellsElectrochemical Energy StorageElectrode MaterialsEnergy Storage MaterialsCycling StabilityDiffusion KineticsEnergy DensityFast Ion TransportLithium-ion BatteriesRate CapabilityStructural InstabilityStructural Stability
With the increasing demand for high energy density and rapid charging performance, Li-rich materials have been the up and coming cathodes for next-generation lithium-ion batteries. However, because of oxygen evolution and structural instability, the commercialization of Li-rich materials is extremely retarded by their poor electrochemical performances. In this work, Li-deficient materials Li0.3NbO2 and (Nb0.62Li0.15)TiO3 are applied to functionalize the surface of Li1.2Mn0.54Ni0.13Co0.13O2, aiming to suppress oxygen evolution and increase structural stability in LIBs. In addition, a fast Li-ion transport channel is beneficial to enhance Li+ diffusion kinetics. The results demonstrate that the electrodes decorated with Li0.3NbO2 and (Nb0.62Li0.15)TiO3 materials exhibit more stable cycling stability after long-term cycling and outstanding rate capability.
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A. Robert Armstrong, Michael Holzapfel, Petr Novák et al. · Journal of the American Chemical Society · 2006 · 1.6K citations