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Ni-Rich LiNixMnyCozO2 (x0.6) Cathode Material Development for Li-Ion Battery via Sol-Gel Method
Date
2019-09-11
Author
Yıldırım, Mustafa Alp
Aydınol, Mehmet Kadri
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https://hdl.handle.net/11511/76091
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Ni-rich LiNixMnyCozMvO2 (X>0.6) cathode material development for Li-ion batteries
Yıldırım, Mustafa Alp; Aydınol, Mehmet Kadri; Department of Metallurgical and Materials Engineering (2022-9-01)
The nickel-rich lithium nickel manganese cobalt oxide (NMC) cathode materials are the driving force of Lithium-ion batteries. Despite the high capacity and high energy they offer, their structural stability needs to be improved. The production method and element doping are among prominent research topics in the studies to increase the structural stability of the Ni-rich NMC materials. In this study, Ni-rich LiNixMnyCozO2 (x>0.6) and Ni-rich Li(NMC)1-vNbvO2 (v=0.2, 0.4, 0.8) were produced using the citric ac...
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Ethylene adsorption on a Ni-55 nanocluster was studied by Weal IS of the density functional theory (DFT)/B3LYP using the basis sets of 6-31G(d,p) and 86-411(41d)G in Gaussian 03. The Ni-55 nanocluster was found to have a distorted icosahedral geometry, in accordance with the experimental findings. The binding energy value for the Ni-55 nanocluster was calculated to be 3.51 eV/atom using equilibrium geometry calculations. The estimated bulk nickel binding energy was in reasonable agreement with the experimen...
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Nickel and copper incorporated MCM-41-like mesoporous nanocomposite materials prepared by the direct hydrothermal synthesis and the impregnation procedures showed highly attractive pore structure and surface area results for catalytic applications. The XRD patterns showed that characteristic MCM-41 structure was preserved for the materials synthesized following an impregnation procedure before the calcination step. The surface area of the Cu impregnated material with a quite high Cu/Si atomic ratio (0.19) w...
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In the present study, Ni incorporated MCM-41 structured mesoporous catalysts with a Ni/Si atomic ratio of 0.036 and 0.15 were prepared by a direct hydrothermal synthesis procedure. These catalysts had surface area values of 860.5 m(2)/g (Ni-MCM-41 having a Ni/Si ratio of 0.036) and 944.9 m(2)/g (Ni-MCM-41 having a Ni/Si ratio of 0.15). They also had narrow pore size distributions with average pore diameters of 2.7-2.6 nm respectively. Ni MCM-41 synthesized by the one-pot hydrothermal synthesis procedure sho...
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M. A. Yıldırım and M. K. Aydınol, “Ni-Rich LiNixMnyCozO2 (x0.6) Cathode Material Development for Li-Ion Battery via Sol-Gel Method,” 2019, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/76091.