Safety modelling and testing of lithium-ion batteries in electrified vehicles

Jie Deng (), Chulheung Bae, James Marcicki, Alvaro Masias and Theodore Miller
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Jie Deng: Ford Motor Company
Chulheung Bae: Ford Motor Company
James Marcicki: Ford Motor Company
Alvaro Masias: Ford Motor Company
Theodore Miller: Ford Motor Company

Nature Energy, 2018, vol. 3, issue 4, 261-266

Abstract: Abstract To optimize the safety of batteries, it is important to understand their behaviours when subjected to abuse conditions. Most early efforts in battery safety modelling focused on either one battery cell or a single field of interest such as mechanical or thermal failure. These efforts may not completely reflect the failure of batteries in automotive applications, where various physical processes can take place in a large number of cells simultaneously. In this Perspective, we review modelling and testing approaches for battery safety under abuse conditions. We then propose a general framework for large-scale multi-physics modelling and experimental work to address safety issues of automotive batteries in real-world applications. In particular, we consider modelling coupled mechanical, electrical, electrochemical and thermal behaviours of batteries, and explore strategies to extend simulations to the battery module and pack level. Moreover, we evaluate safety test approaches for an entire range of automotive hardware sets from cell to pack. We also discuss challenges in building this framework and directions for its future development.

Date: 2018
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DOI: 10.1038/s41560-018-0122-3

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