Battery Modeling and Charging Simulation: From Microstructure to Performance
Seminar recording
Designing high-performance batteries requires more than material science—it requires a deep understanding of how microstructure influences electrochemical behavior. Traditional laboratory iteration is often a "dead end," costing upwards of €30,000 per run and taking months to yield results.
In this technical seminar, we demonstrate how the digital material laboratory GeoDict accelerates battery innovation by replacing trial-and-error with digital experiments. We explore the workflow from geometry generation (CT/FIB-SEM or digital twins) to performance prediction using both fully resolved 3D simulations and homogenized pseudo-2D (P2D) Newman models.
In this seminar you will learn step-by-step:
- Microstructure Generation: Creating realistic cathode/anode geometries with precise control over particle shape, size distribution, and calendaring.
- Performance Prediction: Calculating effective conductivity and diffusivity to parameterize electrochemical models.
- Resolved Charging Simulations: Visualizing lithium-ion concentrations, thermal power density, and local overpotentials at the interface level.
- Homogenized vs. Fully Resolved Models: A comparison of accuracy vs. compute time—from 8-hour detailed runs to 10-second P2D simulations.
- New Feature Spotlight: Introduction to Electrochemical Impedance Spectroscopy (EIS) simulations for physics-based impedance prediction without equivalent circuit simplifications.
Accelerate your lead time from years to days by focusing only on the most promising microstructure candidates.
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Chapters in YouTube Video
0:00 Introduction
1:33 The Race for Better Battery Microstructures
3:33 Challenges in Traditional Lab-Based R&D
6:22 Digital Material Design: The GeoDict Workflow
14:10 Demonstration: Generating a Bimodal Cathode Structure
17:19 Charging Simulation: Fully Resolved Microstructure Analysis
28:55 Visualizing Thermal Power and Lithium Concentration
32:12 P2D Newman Modeling: Speed vs. Detail
41:35 Feature Reveal: Electrochemical Impedance Spectroscopy (EIS)
45:32 Thank you for attending - Outro
