Analysis of Small-Scale Lithium-Ion Batteries under Thermal Abuse

Abstract

Lithium-Ion Batteries (LIB) have dominated the energy market for several decades due to their high energy density and long-life cycle. However, several fire accidents in electric vehicles have raised questions about their safety concerns. Researchers have identified thermal runaways to be the major reason for the fire susceptibility of LIBs. One of the major risks in accidents involving LIB fires is toxic gaseous emissions. Hence, it is necessary to understand those toxic emissions to properly counter them. in this study, small-scale battery thermal abuse tests will be performed, and the toxic gases will be analyzed using different tools such as Fourier Transform Infrared (FTIR) spectroscopy ultimately. 5 different chemistries of roughly the same nominal capacity i.e., 3000 mAh, will be tested and a comparison of the gaseous emissions will be presented in future studies, which has not been done before. However, so far, we have performed preliminary experiments to study the surface temperature of cells. the results of this study showed that the thermal runaway of the cell is triggered when the surface temperature of the cell reaches 190°C, and it keeps on increasing for up to 208°C, even without the use of the heating source, the duration of the experiment varies from 30min to 45min. based on the study results, suitable experiment scenarios are designed the study the gaseous analysis of the LIB on the cell level.

Department(s)

Mining Engineering

Keywords and Phrases

Cell surface temperature; Small-scale LIB; Thermal abuse

International Standard Book Number (ISBN)

978-103255146-3

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2025 Taylor and Francis Group; Taylor and Francis, All rights reserved.

Publication Date

01 Jan 2023

Link to Full Text

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