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.