Contributes to the development of materials optimization for electrical battery system

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Journal Title

Journal ISSN

Volume Title

Kemian tekniikan korkeakoulu | Master's thesis

Authors

Date

2023-12-12

Department

Major/Subject

Functional Materials for Global Challenges

Mcode

CHEM3061

Degree programme

Master's Programme in Advanced Materials for Innovation and Sustainability

Language

en

Pages

85 + 9

Series

Abstract

This thesis undertakes a risk analysis of thermal runaway incidents in electric vehicles, considering the significant increase in the use of electric vehicles in recent years due to their environmental advantages. While these vehicles offer sustainable transportation solutions, the lithium-ion batteries they employ possess the inherent risk of causing thermal runaway, leading to fires that can pose challenges to extinguishing. Thermal runaway is a phenomenon where the battery cell in an EV rapidly heats up and releases flammable gases, leading to a self-sustaining fire. The primary objective of this research is to conduct a comprehensive risk analysis of thermal runaway events, taking into account diverse factors such as battery chemistry, charging behavior, and environmental conditions. The aim is to provide valuable insights that can inform the development of safety guidelines and regulations governing the use of electric vehicles. The thesis aims to assess the effectiveness of fire-coating as a preventive measure against thermal runaway replacing the current solutions used nowadays of mica sheets. This evaluation involves studying diverse solutions suggested by suppliers, their application methods, and their efficacy in mitigating the risks of thermal runaway in electric vehicle battery systems, based on predefined expected properties within my colleagues.

Description

Supervisor

Murtomäki, Lasse

Thesis advisor

Noury, Agnieszka

Keywords

battery module, battery pack, cell-to-pack, cell-to-body, fire retardant, thermal conductivity

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Citation

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-202312187323

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[dipl] Kemian tekniikan korkeakoulu / CHEM