Zhou, S, Wang, G, Xiao, Y et al. (3 more authors) (2016) Influence of charge status on the stress safety properties of Li(Ni₁⁄₃Co₁⁄₃Mn₁⁄₃)O₂ cells. RSC Advances, 6 (68). pp. 63378-63389. ISSN 2046-2069
Abstract
In order to improve safety management, the stress changes of Li(Ni1/3Co1/3Mn1/3)O2 (NMC) cells are real-time monitored using non-destructive strain gauges, and the effects of gauge substrate, temperature and state-of-charge (SOC) have been investigated. The shell exhibits elastic deformation behaviour, and the strain-stress relationship is established. As the temperature increases from 25 to 80 °C, the stress of the NMC cells increases from 0 to 275 MPa, especially greatly at 70 °C and sharply at 80 °C after 18 h. The stress increases from 0 to 9.2 MPa when the potential increases from 2.8 to 4.3 V. However, the value rises from 10 to 55 MPa when the voltage increases from 4.6 to 5.0 V during the over-charge process. An obvious increase of stress appears when the cut-off voltage is below 0.6 V during over-discharge tests. The facile method is significant for non-destructive inspection and emergency management of batteries.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2016, RSC. This is an author produced version of a paper published in RSC Advances. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) > Institute for Resilient Infrastructure (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 13 Sep 2016 14:01 |
Last Modified: | 18 Jul 2017 18:24 |
Published Version: | http://dx.doi.org/10.1039/c6ra08774d |
Status: | Published |
Publisher: | Royal Society of Chemistry |
Identification Number: | 10.1039/c6ra08774d |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:104503 |