Investigating the Cell Result Multiplication Method for Emission Test of Battery Module

Tianyi Ma*, Xiaole Ma, Fang Wang*, Weijian Hao, Zhipeng Sun, Lei Liu, Yue Xu, Yupeng Li, Shanming Liu, Haishuo Ma, Xiaoqian Dai, Yifan Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The thermal safety of lithium-ion traction batteries is a highly concerning issue in the field of electric transportation. The large amount of gas emissions during the thermal runaway process of batteries has high safety hazards, such as fire and explosion. The quantitative analysis of emissions is one of the important challenges in testing and evaluating battery safety. Focusing on quantifying gas emissions using large-scale thermal propagation in battery modules and packs, based on the idea of cell result multiplication, this article conducts a thermal runaway emission analysis of a single cell and a module and compares the behavior of thermal runaway and gas emissions of the cell and module from the perspectives of temperature, pressure, gas composition, and battery morphology. The feasibility of the cell result multiplication method is verified from the perspective of experimental data.

Original languageEnglish
Article number450
JournalBatteries
Volume9
Issue number9
DOIs
Publication statusPublished - Sept 2023
Externally publishedYes

Keywords

  • cell result multiplication
  • gas emission
  • lithium-ion battery
  • thermal runaway

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