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Adsorption and Diffusion of Lithium on Layered Silicon for Li-Ion Storage
Nano Letters, 2013The energy density of Li-ion batteries depends critically on the specific charge capacity of the constituent electrodes. Silicene, the silicon analogue to graphene, being of atomic thickness could serve as high-capacity host of Li in Li-ion secondary batteries.
Sheng Meng +2 more
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A diffusive electro-equivalent Li-ion battery model
2013 IEEE International Symposium on Circuits and Systems (ISCAS2013), 2013Lithium ion (Li-ion) batteries are the standard choice for many applications; but their behavior is complex. In order to safely and efficiently exploit their advantages, advanced model-based Battery Management Systems (BMS) are required. This paper introduces a computationally efficient, control-oriented model for a Li-ion cell.
CORNO, MATTEO, SAVARESI, SERGIO MATTEO
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Study of Li-Ion Diffusion and Phase Transition in Cathode of Li-Ion Battery
Transactions of the Korean Society of Mechanical Engineers B, 2013Metal ions show various transitions in the cathode of a lithium-ion battery. The diffusion process of lithiumions and the phase transition in the cathode need to be thoroughly understood for the advanced design of an improved lithium-ion battery.
Sooil Kim, Dongchoul Kim
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Determination of Activation Energy for Li Ion Diffusion in Electrodes
The Journal of Physical Chemistry B, 2009Higher power Li ion rechargeable batteries are important in many practical applications. Higher power output requires faster charge transfer reactions in the charge/discharge process. Because lower activation energy directly correlates to faster Li ion diffusion, the activation energy for ionic diffusion throughout the electrode materials is of primary
Masashi, Okubo +4 more
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Small, 2022
AbstractSurface modification of cathodes using Ni‐rich coating layers prevents bulk and surface degradation for the stable operation of Li–ion batteries at high voltages. However, insulating and dense inorganic coating layers often impede charge transfer and ion diffusion kinetics.
You Jin Kim +4 more
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AbstractSurface modification of cathodes using Ni‐rich coating layers prevents bulk and surface degradation for the stable operation of Li–ion batteries at high voltages. However, insulating and dense inorganic coating layers often impede charge transfer and ion diffusion kinetics.
You Jin Kim +4 more
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Modelling and Simulation in Materials Science and Engineering, 2014
The effects of electrode properties and fabricated pressure on Li ion diffusion and diffusion-induced stress in a cylindrical Li-ion battery are studied. It is found that hydrostatic pressure or elastic modulus variation in the active layer have little effect on the distribution of Li ions for a higher diffusivity coefficient, but both can facilitate ...
Tao Zhang, Zhansheng Guo
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The effects of electrode properties and fabricated pressure on Li ion diffusion and diffusion-induced stress in a cylindrical Li-ion battery are studied. It is found that hydrostatic pressure or elastic modulus variation in the active layer have little effect on the distribution of Li ions for a higher diffusivity coefficient, but both can facilitate ...
Tao Zhang, Zhansheng Guo
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Diffusion of Li+ ion on graphene: A DFT study
Applied Surface Science, 2011Abstract Density functional theory investigations show that the Li + ion is stabilized at the center of hexagonal carbon ring with the distance of 1.84 A from graphene surface. The potential barrier of Li + ion diffusion on the graphene surface, about 0.32 eV, is much lower than that of Li + ion penetrating the carbon ring which is 10.68 eV.
Jiming Zheng +4 more
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Calculations of Li-Ion Diffusion in Olivine Phosphates
Chemistry of Materials, 2011Kinetic pathways of Li-ion diffusion in olivine phosphates are calculated from density functional theory (DFT). Previously reported theoretical diffusion rates for Li ions and vacancies in defect-free crystalline FePO4 and LiFePO4 are six orders of magnitude faster than experimentally measured values. This discrepancy can be resolved by considering the
Gopi Krishna Phani Dathar +3 more
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Defects, dopants and Li-ion diffusion in Li2SiO3
Solid State Ionics, 2019Abstract Lithium metasilicate, Li2SiO3, attracts considerable interest for the development of solid breeding blanket material in fusion reactors and solid electrolyte material in lithium ion batteries. Atomistic simulations are employed to study defect processes, dopant behaviour and lithium ion migration in Li2SiO3.
N. Kuganathan +2 more
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Li-ion diffusion in Li Nb9PO25
Electrochimica Acta, 2013Abstract Wadsley–Roth phase Li x Nb 9 PO 25 has been studied as a potential candidate for anode material of Li-ion batteries. Its crystal structure, which consists of ReO 3 -type blocks of NbO 6 octahedra connected with PO 4 tetrahedra, provides a good stability and performance during Li + insertion/removal.
Drozhzhin, O.A. +5 more
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