公开(公告)号：US20250132303A1

公开(公告)日：2025-04-24

申请号：US18921074

申请日：2024-10-21

Applicant: Dassault Systemes Americas Corp.

Inventor： Timothy Carlson ,  Rafael Salazar-Tio ,  Victor Oancea ,  Ganapathi Raman Balasubramanian ,  Bernd Crouse ,  Ashraful Islam ,  Youngwon Hahn

IPC: H01M4/04

Abstract: A microstructure is upscaled to generate a coarsened heterogeneous spatial distribution of porosity and a set of porosity dependent constitutive relationships. A three dimensional (3D) microstructure model, bulk material properties, and/or porosity is received for anode, cathode, and separator battery components. A coarsened porosity model with emergent properties is calculated from the battery component microstructures as a function of the porosity. Bruggeman coefficients for each battery component sub region are calculated from the effective ionic conductivity, electric and thermal conductivity, and ionic diffusivity. A heterogeneous mesoscale 3D battery model is created by combining the anode, cathode, and separator materials into a single cell structure and separately partitioning each into coarse voxels to create a 3D model of porosity.

公开(公告)号：US20240290039A1

公开(公告)日：2024-08-29

申请号：US18644176

申请日：2024-04-24

Applicant: Dassault Systemes Americas Corp.

Inventor： Zhuang Sun ,  Rafael Salazar-Tio ,  Andrew Fager ,  Bernd Crouse

IPC: G06T17/20 ,  G06T11/00 ,  G06T15/04

CPC classification number: G06T17/20 ,  G06T11/001 ,  G06T11/006 ,  G06T11/008 ,  G06T15/04

Abstract: Disclosed are computer implemented techniques for conducting a simulation of physical properties of a porous medium. The features include receiving a micro-CT 3D image that captures a representative elemental volume of the porous medium, the porous medium defined as having mineral types and fluid types with individual grains and grain to grain contacts, labeling the micro-CT 3D image as individual voxels according to mineral and fluid types and labeling the mineral type voxels as belonging to separated and fixed individual grains. The features also include transforming the labeled voxels into an unstructured conformal mesh representation for all grains and applying the unstructured conformal mesh representation to a parametric cohesive contact engine, with the parametric cohesive contact engine executing a parametric cohesive contact model that has an adjustable parameter, a critical separation δ0 conditioned according to consolidation level.