Digital‐Twin‐Driven Diagnostics of Crack Propagation in a Single LiNi_0.7Mn_0.15Co_0.15O₂ Secondary Particle during Lithium Intercalation (Adv. Energy Mater. 23/2023)

Modeling Lithium Intercalation of a Single Spinel Particle under Potentiodynamic Control

A mathematical model is presented for the lithium intercalation of a single spinel particle as a microelectrode under the stimulus of a cyclic linear potential sweep. The model includes both lithium diffusion within the particle and kinetics at the particle/electrolyte interface. The model is used to predict that peak current densities depend linearly on the scan rate to a certain power with a ...

Energy minimizing brittle crack propagation II

Localized concentration reversal of lithium during intercalation into nanoparticles

Nanoparticulate electrodes, such as Li x FePO4, have unique advantages over their microparticulate counterparts for the applications in Li-ion batteries because of the shortened diffusion path and access to nonequilibrium routes for fast Li incorporation, thus radically boosting power density of the electrodes. However, how Li intercalation occurs locally in a single nanoparticle of such materi...

Alternating crack propagation during directional drying.

The propagation of fractures during the drying of a colloidal silica suspension confined in a vertical microtube is investigated. During the drying process, the particle concentration increases until gel formation. In the gelled region, the tensile stresses increase and lead to the formation of two vertical perpendicular cracks propagating in the drying direction, dividing the tube into four eq...

effect of sub-grid scales on large eddy simulation of particle deposition in a turbulent channel flow

چکیده ندارد.