Thermal Management

Battery Thermal Management with High-Fidelity FVDBM

Featured ITES Lab research project.

Battery thermal management with high-fidelity FVDBM modeling illustration

Overview

This research develops high-fidelity computational approaches for understanding and controlling thermal behavior in advanced battery systems.

Battery performance, safety, and lifetime are strongly influenced by temperature gradients, local hot spots, and transient thermal behavior. Effective battery thermal management therefore requires models capable of resolving localized heat-transfer phenomena that may not be adequately represented by simplified system-level approaches.

Research Approach

The research uses the Finite-Volume Discrete Boltzmann Method (FVDBM) to investigate:

  • Cell- and module-level thermal behavior
  • Local temperature gradients
  • Hot-spot formation and evolution
  • Transient heat transfer
  • Thermal buffering
  • PCM-based thermal management
  • Heat removal and cooling behavior
  • Local transport physics

Current Research

Preliminary investigations examine battery–PCM configurations and the evolution of thermal gradients under transient operating conditions. The simulations show that thermal buffering can reduce temperature rise while localized transport behavior continues to govern hot-spot evolution and temperature nonuniformity.

Hotspot BehaviorPeak temperature remains above battery and PCM averages.
Thermal GradientsRadial gradients develop from the battery core into the surrounding buffer.
Thermal BufferingPCM reduces temperature rise under transient operation.
Modeling PathwayHigh-fidelity transport models can inform reduced-order models and digital twins.

Research Direction

The high-fidelity computational framework is intended to provide a foundation for improved battery thermal-management design, reduced-order thermal models, predictive battery-management tools, future electro-thermal integration, AI-enabled battery digital twins, and thermal management of advanced energy-storage systems.

High-fidelity transport modeling for safer, more reliable, and more intelligent battery thermal management.