Chapter 6: Abuse Response of Batteries Subjected to Mechanical Impact

Jinyong Kim, Anudeep Mallarapu, Shriram Santhanagopalan

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Electrochemical and thermal models to simulate nominal performance and abuse response of lithium-ion cells and batteries have been reported widely in the literature. Studies on mechanical failure of cell components and how such events interact with the electrochemical and thermal response are relatively less common. This chapter outlines a framework developed under the Computer Aided Engineering for Batteries program to couple failure modes resulting from external mechanical loading to the onset and propagation of electrochemical and thermal events that follow. Starting with a scalable approach to implement failure criteria based on thermal, mechanical, and electrochemical thresholds, we highlight the practical importance of these models using case studies at the cell and module level. The chapter also highlights a few gaps in our understanding of the comprehensive response of batteries subjected to mechanical crash events, the stochastic nature of some of these failure events, and our approach to build safety maps that help improve robustness of battery design by capturing the sensitivity of some key design parameters to heat generation rates under different mitigation strategies.
Original languageAmerican English
Title of host publicationComputer Aided Engineering of Batteries
Subtitle of host publicationModern Aspects of Electrochemistry, Volume 62
EditorsS. Santhanagopalan
Pages199-242
DOIs
StatePublished - 2023

NREL Publication Number

  • NREL/CH-5700-83222

Keywords

  • abuse simulations
  • battery modeling
  • battery safety
  • computer aided engineering
  • mechanical impact

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