4.7 Article

A quasi-physical method for random packing of spherical particles

Related references

Note: Only part of the references are listed.
Review Chemistry, Multidisciplinary

Review on Modeling for Chemo-mechanical Behavior at Interfaces of All-Solid-State Lithium-Ion Batteries and Beyond

Jiayu Tian et al.

Summary: This article introduces the challenges in the application of all-solid-state lithium-ion batteries (ASSLIBs), focusing on the mechanical instability issues associated with solid electrolytes. It discusses the development of theoretical models to study the chemo-mechanical behavior of ASSLIBs, particularly in relation to lithium dendrite formation and propagation, as well as delamination and fragmentation within composite electrodes.

ACS OMEGA (2022)

Article Mathematics, Interdisciplinary Applications

A discrete element study of the effect of particle shape on packing density of fine and cohesive powders

H. S. Elmsahli et al.

Summary: By designing quasi-spherical particles, control over the interaction between particle shape, size, inter-particle cohesion, and friction can lead to low packing density.

COMPUTATIONAL PARTICLE MECHANICS (2021)

Article Chemistry, Physical

Towards a 3D-resolved model of Si/Graphite composite electrodes from manufacturing simulations

Chaoyue Liu et al.

Summary: This study presents a three-dimensional physics-based model for graphite/Si composite electrodes, coupling electrochemistry and mechanics to gain a fundamental understanding of the complex processes in these electrodes, paving the way for their optimization.

JOURNAL OF POWER SOURCES (2021)

Article Engineering, Multidisciplinary

A novel stiffness scaling methodology for discrete element modelling of cohesive fine powders

Yi He et al.

Summary: (English Summary:) The study highlights the importance of considering sliding and rolling resistances as well as non-contact cohesive interaction when modelling cohesive fine powders, presenting a new stiffness scaling methodology that significantly improves the accuracy of simulations. The new approach preserves particle behavior and packing structure details even when stiffness is scaled down by orders of magnitude, demonstrating its applicability in various contact-dominated systems.

APPLIED MATHEMATICAL MODELLING (2021)

Article Electrochemistry

A comparison of model prediction from P2D and particle packing with experiment

Fuqiang An et al.

Summary: Design and optimization of the microstructure of the lithium-ion cell electrode is crucial for improving rate capability. The particle packing model shows better agreement with experimental tests compared to the widely-utilized P2D electrochemical model, especially at high discharge rates. Investigation into parameters like tortuosity plays a significant role in improving the accuracy of the P2D model.

ELECTROCHIMICA ACTA (2021)

Article Chemistry, Physical

Investigating electrode calendering and its impact on electrochemical performance by means of a new discrete element method model: Towards a digital twin of Li-Ion battery manufacturing

Alain C. Ngandjong et al.

Summary: This study presents an experimentally validated calendering model that optimizes the manufacturing of lithium-ion batteries by considering the active material and carbon-binder domain, improving their performance. The effect of calendering on the electrode mesostructure was analyzed, leading to insights into the links between calendering pressure, electrode mesostructure, and overall performance.

JOURNAL OF POWER SOURCES (2021)

Article Engineering, Chemical

DEM simulations of vibrated sphere packings in slender prismatic containers

Sujith Reddy Jaggannagari et al.

Summary: DEM simulations were conducted to study the packing structure under vibration, showing that vertical vibration is more efficient than lateral vibration, and the crystallinity of the packing structure increases with vibration.

POWDER TECHNOLOGY (2021)

Article Engineering, Chemical

DEM simulation of vibrated packing densification of mono-sized regular octahedral particles

Lin Wang et al.

Summary: A DEM model is used to simulate the densification of mono-sized regular octahedral particles under vibration, with validation through physical experiments. The impact of operating parameters on densification mechanisms is investigated, highlighting the critical role of vibration amplitude. The study reveals ordered packing structures in the boundary region and significant differences in particle behavior between central and boundary regions.

POWDER TECHNOLOGY (2021)

Article Engineering, Chemical

Random loose packing of cylindrical particles considering filling rate

Chengquan Zhang et al.

Summary: Experimental studies and simulations using the discrete element method revealed that the void fraction of cylindrical particles increases with the filling rate, reaching a maximum value and then stabilizing. A prediction model considering the filling rate was established, showing that a larger filling rate leads to the formation of "bridge" structures and a larger void fraction in the packing.

POWDER TECHNOLOGY (2021)

Article Chemistry, Multidisciplinary

Multi-length scale microstructural design of lithium-ion battery electrodes for improved discharge rate performance

Xuekun Lu et al.

Summary: The study shows that randomly oriented primary particles lead to a 2.35 times increase in SST resistance and induce uneven intra-particle lithiation. Internal cracks significantly restrict accessibility to the active material. Double-layered particles are proven to be more promising than single-crystal particles.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

Article Engineering, Chemical

DEM study on the packing density and randomness for packing of ellipsoids

Jieqing Gan et al.

POWDER TECHNOLOGY (2020)

Article Materials Science, Multidisciplinary

Effect of surface texture, size ratio and large particle volume fraction on packing density of binary spherical mixtures

Chamod Hettiarachchi et al.

GRANULAR MATTER (2020)

Article Electrochemistry

Impact of Particle Size Distribution on Performance of Lithium-Ion Batteries

Lars Blaeubaum et al.

CHEMELECTROCHEM (2020)

Review Chemistry, Physical

A review on modeling of electro-chemo-mechanics in lithium-ion batteries

Ying Zhao et al.

JOURNAL OF POWER SOURCES (2019)

Article Engineering, Multidisciplinary

Optimized Dropping and Rolling (ODR) method for packing of poly-disperse spheres

K. Hitti et al.

APPLIED MATHEMATICAL MODELLING (2013)

Article Engineering, Chemical

Prediction of the porosity of multi-component mixtures of cohesive and non-cohesive particles

R. P. Zou et al.

CHEMICAL ENGINEERING SCIENCE (2011)

Article Computer Science, Interdisciplinary Applications

A bounding box search algorithm for DEM simulation

Laura E. Walizer et al.

COMPUTER PHYSICS COMMUNICATIONS (2011)

Article Engineering, Chemical

Coordination Number of the Packing of Ternary Mixtures of Spheres: DEM Simulations versus Measurements

L. Y. Yi et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2011)

Article Engineering, Chemical

Experimental study on the packing of uniform spheres under three-dimensional vibration

C. X. Li et al.

POWDER TECHNOLOGY (2011)

Article Materials Science, Multidisciplinary

Simulation of random packing of spherical particles with different size distributions

Yu Shi et al.

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING (2008)

Article Engineering, Chemical

Simulation of random packing of polydisperse particles

Riyadh Al-Raoush et al.

POWDER TECHNOLOGY (2007)

Article Computer Science, Theory & Methods

Historical overview of the Kepler conjecture

TC Hales

DISCRETE & COMPUTATIONAL GEOMETRY (2006)

Article Mathematics, Applied

A simple mesh generator in MATLAB

PO Persson et al.

SIAM REVIEW (2004)