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The effects of molybdenum doping on LiNi0.6Co0.2Mn0.2O2 cathode material
Solid State Ionics, 2019Abstract The high valence and large ionic radius of Mo6+ is selected as a dopant to modify the LiNi0.6Co0.2Mn0.2O2 material through the molecular level mixed calcination method. The Mo6+ substitutes the transition metal atoms in the material proportionately, which has no influence on the original atom ratio of the transition metal, and may expand the
Qi Liu +5 more
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Journal of Colloid and Interface Science, 2023
Sulfide-based all-solid-state lithium batteries (ASSLBs) with high-voltage Ni-rich layered cathodes have shown great potential in energy storage systems. However, the application of ASSLBs is hindered by severe interface issues and poor solid-solid contact between cathodes and sulfide electrolytes.
Genjie, Huang +5 more
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Sulfide-based all-solid-state lithium batteries (ASSLBs) with high-voltage Ni-rich layered cathodes have shown great potential in energy storage systems. However, the application of ASSLBs is hindered by severe interface issues and poor solid-solid contact between cathodes and sulfide electrolytes.
Genjie, Huang +5 more
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Unraveling the capacity fading mechanisms of LiNi0.6Co0.2Mn0.2O2 at elevated temperatures
Journal of Power Sources, 2018Abstract LiNixCoyMnzO2 cathode materials play a vital role in next-generation lithium-ion batteries because of their high energy density, but they suffer capacity decay at elevated temperatures. Improving the cycling stability of LiNixCoyMnzO2 requires a basic comprehension of its capacity fade mechanisms.
Siyang Liu +7 more
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Enhancing the air stability of LiNi0.6Co0.2Mn0.2O2 cathode through WO3/Li2WO4 surface modification
Journal of Power Sources, 2021Abstract High-nickel cathode materials are widely applied in the field of electric vehicles because of their superior energy density. However, given their increased Ni content, these materials are susceptible to poor air stability and serious residual lithium growth.
Binbin Chu +5 more
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Superior high voltage LiNi0.6Co0.2Mn0.2O2 cathode using Li3PO4 coating for lithium-ion batteries
Korean Journal of Chemical Engineering, 2021Lithium phosphate (Li3PO4) is a well-known solid electrolyte for lithium-ions. In this study, we analyzed the effects of Li3PO4 coating on the electrochemical performance of LiNi0.6Co0.2Mn0.2O2 (NCM), a nickel-rich cathode. In particular, the coated materials exhibited enhanced cycle stability at high voltages and possessed superior rate capability ...
Jong Hun Sung +9 more
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Role of current density in the degradation of LiNi0.6Co0.2Mn0.2O2 cathode material
Electrochimica Acta, 2019Abstract The effect of different current density on the structure transformation of LiNi0.6Co0.2Mn0.2O2 material is studied under a cut-off voltage (4.6 V). It shows that the capacity fading is accelerated at the high discharge current density. It is mainly caused by the structure instability of the material.
Borong Wu +6 more
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Applied Physics Letters, 2021
Poor thermal stability and severe structural degradation of Ni-rich LiNi0.6Co0.2Mn0.2O2 (NCM622) cathode during the (de)lithiation process hinder its further application. As a typical thermal barrier material and ion conductor, La2Zr2O7 (LZO) was herein served as the multifunctional modification layer due to its excellent thermal stability, robust ...
Liufei Gao +7 more
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Poor thermal stability and severe structural degradation of Ni-rich LiNi0.6Co0.2Mn0.2O2 (NCM622) cathode during the (de)lithiation process hinder its further application. As a typical thermal barrier material and ion conductor, La2Zr2O7 (LZO) was herein served as the multifunctional modification layer due to its excellent thermal stability, robust ...
Liufei Gao +7 more
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Electrochimica Acta, 2017
Abstract A novel surface modification strategy that could convert lithium residues on the Ni-rich material surface into a lithium ion conductor coating layer was investigated. Various analysis techniques, such as high resolution transmission electron microscopy (HRTEM), energy dispersive X-ray spectrometer (EDS) and X-ray photoelectron spectroscopy ...
Siyang Liu +7 more
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Abstract A novel surface modification strategy that could convert lithium residues on the Ni-rich material surface into a lithium ion conductor coating layer was investigated. Various analysis techniques, such as high resolution transmission electron microscopy (HRTEM), energy dispersive X-ray spectrometer (EDS) and X-ray photoelectron spectroscopy ...
Siyang Liu +7 more
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WO3 membrane-encapsulated layered LiNi0.6Co0.2Mn0.2O2 cathode material for advanced Li-ion batteries
Ceramics International, 2019Abstract Despite Nickel-rich materials have all the advantages of high capacity, long cycle life and low cost, there is still a disadvantage that the capacity decreases rapidly as the number of cycles increases. In order to solve this problem, WO3 was uniformly coated on the surface of LiNi0.6Co0.2Mn0.2O2 cathode materials by wet coating, and its ...
Guowen Song +4 more
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Journal of Power Sources, 2021
Abstract Ni-rich layered oxide materials have become a major choice of cathode material for electrical vehicle batteries. However, it is an outstanding challenge to improve the safety performance of these batteries as the energy density of the batteries increases with higher Ni content in the cathode material.
Ziwei Hong +9 more
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Abstract Ni-rich layered oxide materials have become a major choice of cathode material for electrical vehicle batteries. However, it is an outstanding challenge to improve the safety performance of these batteries as the energy density of the batteries increases with higher Ni content in the cathode material.
Ziwei Hong +9 more
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