Electromagnetics and Electrochemistry

Electromagnetics

Higher Order Finite Element Electromagnetic solver (Tetrahedral elements and Time domain)
- Improved accuracy, reduced mesh count and reduced time to solution thanks to introduction of higher order FE methods
  - Higher order solver available for the FE Magnetic Vector Potential model
    - Currently supported only for time domain and tetrahedral meshes
  - FE shape function order adaptivity allows local refinement without changing the mesh
  - Mid-side vertices and other techniques allow for capturing intra-cell variability without increasing mesh count
Local Point Support for Nonlinear Anisotropic Permeability
- More accurate calculation of the permeability and the Frechet derivative for nonlinear anisotropic materials via integration at the local point level
  - Significantly improved convergence for p-order 0 and hexahedral meshes
  - Better convergence for any mesh type and p-order 2
Mapped Contact Interfaces for single region electrodynamic potential (EDP)
- Faster Conjugate Heat Transfer (CHT) simulations involving EDP with mapped contact interface compatibility
  - Previously, Mapped Contact Interfaces could not be used if any region had an EDP model active
  - Now, Mapped Contact Interfaces can be used in instances where only one region has EDP active
  - Use of Mapped Contact Interfaces allow for faster interface intersection times and better face matching compared to direct contact interfaces
  - Multiple regions with EDP and Mapped Contact Interfaces are not yet supported

Electrochemistry

3D Cell Design - aging models
- Capture the impact of battery aging with new physics-based cell degradation models
  - Two main aging models introduced: Solid-Electrolyte Interphase (SEI) film growth and Lithium plating film growth
  - Further details can be found under Batteries.