Influence of Freezing Treatment on the Thermal Runaway Characteristics of Lithium-Ion Batteries

J W Weng; D X Ouyang; M Y Chen; C Ding; J Wang

doi:10.1088/1755-1315/581/1/012013

Author(s)

J W Weng
D X Ouyang
M Y Chen
C Ding
J Wang

Related Research Unit(s)

Department of Architecture and Civil Engineering

Detail(s)

Original language	English
Article number	012013
Journal / Publication	IOP Conference Series: Earth and Environmental Science
Volume	581
Online published	4 Dec 2020
Publication status	Published - 2020

Conference

Title	2020 10th International Conference on Future Environment and Energy, ICFEE 2020
Place	Japan
City	Kyoto
Period	7 - 9 January 2020

Link(s)

DOI	DOI https://doi.org/10.1088/1755-1315/581/1/012013 Final Published version
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Attachment(s)	Documents 69726529.pdf Final Published version, 2.41 MB, PDF Publisher's Copyright Statement This full text is made available under CC-BY 3.0. https://creativecommons.org/licenses/by/3.0/
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85097909370&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(5cbc2248-64a9-4b2f-beac-4646349ec358).html

Abstract

Owing to increasing applications of lithium-ion batteries (LIBs), it is worth investigating the thermal runaway (TR) behaviors of LIBs under extreme conditions such as flash freezing, which has been proposed as a feasible way for LIB transportation or storage. In this study, a series of experiments was conducted to explore and compare the TR behaviors of batteries with and without freezing treatment. According to the results, the batteries after freezing treatment exhibited a faster temperature rise, and the onset time of TR (t) was shortened. For example, t was 277.2 s in the blank test, whereas for the battery after 72 h freezing, t was 250.2 s. Moreover, the microstructure comparison on the internal electrode materials after TR showed that freezing treatment aggravated the agglomeration and clustering of them. Additionally, we recommend storing LIBs with a lower state of charge (SOC) even in freezing or extreme-cold conditions.