A thermal runaway is a severe safety hazard in lithium-ion batteries, and thermal runaway regulations (for example, UN GTR 20 and GB 38031-2020)  require the vehicle cabin to remain safe for at least 5 minutes after a thermal runaway is detected. This is known as the "5-minute escape test." Simulation is essential for developing safety standards and regulations and designing batteries and vehicles that meet these requirements. Advanced 3D transient simulation is needed to predict thermal propagation inside the battery pack and its impact on surrounding components. ThermoAnalytics® has developed an innovative and computationally efficient 3D thermal simulation method that enables the simulation of the 5-minute escape test.

TAITherm™ allows designers to optimize internal design details such as inter-cell insulation and external structural information such as heat shielding and pack-to-chassis insulation. When identifying prevention and mitigation strategies, using TAITherm™ to develop a transient simulation workflow for a battery thermal runaway event allows for better battery design and thermal management. TAITherm™ enables rapid design studies for heat protection and durability analysis for quick turnaround times.

Key benefits of using TAITherm™ for battery thermal runaway simulation:

  • Simulate the 5-minute escape test to meet regulatory requirements
  • Optimize internal and external design details for heat protection and durability
  • Perform rapid design studies with quick turnaround times
  • Identify prevention and mitigation strategies for battery thermal runaway