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Performance analysis of safety barriers against cascading failures in a battery pack
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- Xie, L. (author)
- Norwegian University of Science and Technology, Norway
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- Ustolin, F. (author)
- Norwegian University of Science and Technology, Norway
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- Lundteigen, M. A. (author)
- Norwegian University of Science and Technology, Norway
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- (creator_code:org_t)
- Elsevier Ltd, 2022
- 2022
- English.
- In: Reliability Engineering & System Safety. - : Elsevier Ltd. - 0951-8320 .- 1879-0836. ; 228
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Lithium-ion batteries have been widely employed as the principal power source in electric vehicles and other storage systems. However, some critical issues in a battery pack still exist, such as thermal failures on initial cells that impact the temperatures of the surrounding cells. Such cascading failures may significantly affect battery performance and safety. Thermal barriers, as one kind of safety barrier, are therefore installed to prevent failure propagations. This paper focuses on the situation when the temperature of battery cell increases, but the battery pack still can be used in a degradation mode since the barriers are against cascading failures. An approach is proposed to analyze how the deployment and performance of thermal barriers in a battery pack determine their capabilities against cascading failures. The approach includes thermal propagation models associated with the simulations, degradation models, reliability analysis, and barrier analysis. Its application is illustrated with a practical case study. The battery reliabilities are sensitive to many factors of the barriers, such as temperature differences, failed cells, and performance coefficient. The barriers between parallel cells are found to be more effective in mitigating failure propagation. Such findings can be beneficial for barrier optimization and reliability improvement of battery packs. © 2022 The Authors
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
Keyword
- Cascading failure
- Lithium-ion battery
- Reliability analysis
- Safety barrier
- Battery Pack
- Crack propagation
- Failure (mechanical)
- Outages
- Cascading failures
- Critical issues
- Failure propagation
- Performances analysis
- Power sources
- Safety barriers
- Storage systems
- Thermal barrier
- Thermal failure
- Lithium-ion batteries
Publication and Content Type
- ref (subject category)
- art (subject category)
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