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Methods for Leak Testing Lithium-Ion Batteries to Assure Quality with Proposed Rejection Limit Standards
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 14, 2020 by SAE International in United States
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A method is presented discussing how to reliably and quantitatively detect leakage from battery cells through the detection of escaping liquid electrolyte vapors, typically dimethyl carbonate (DMC). The proposed method does not require the introduction of an additional test gas into battery cells. The test system, which is non-destructive in nature, is applicable to non-rigid pouch cells and rigid prismatic or cylindrical cells.
Lithium-ion batteries are a more suitable energy source for many applications because of their high energy density and low self-discharge rate. In the automotive powertrain sector, the lithium-ion battery market share is growing rapidly, with particularly high demand being placed on battery service life and safety. Requirements regarding maximum cell temperature, electrical load power or discharge power of the cell can be controlled by cooling and power management of the battery cell. A single defect in a cell housing can only be detected through leak detection of each battery cell. The lifetime of a battery strongly depends on the tightness of the cell housing, because of the harmful effects caused by the interaction between the electrolyte and water vapor. Rapid detection of leaks in the production of battery cells is absolutely essential to achieving necessary service life and safety requirements. This applies particularly to small leaks that cannot be detected immediately after the cell has been manufactured, for example by using an electrical discharge method. For pouch cells, no reliable method to detect small leak channels is available. This paper examines the spectrum of possible leak scenarios for cylindrical, prismatic and pouch lithium-ion batteries [Figure 1]. Currently no rejection limits have been codified for these batteries. INFICON has established empirically derived rejection limits that will be discussed in this paper.
CitationWetzig, D. and Reismann, M., "Methods for Leak Testing Lithium-Ion Batteries to Assure Quality with Proposed Rejection Limit Standards," SAE Technical Paper 2020-01-0448, 2020, https://doi.org/10.4271/2020-01-0448.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
- Blombren, G.E. , “The Development and Future of Lithium Ion Batteries,” J. of The Electrochemical Society 164:A5019, 2017.
- Miao, Y., Hynan, P., von Jouanne, A., and Yokochi, A. , “Current Li-Ion Battery Technologies in Electric Vehicles and Opportunities for Advancements,” Energies 12(1074), 2019, doi:10.3390/en12061074.
- Ruiz, V., Pfrang, A., Kriston, A., Omar, N. et al. , “A Review of International Abuse Testing Standards and Regulations for Ion Batteries in Electric and Hybrid Vehicles,” Renewable and Sustainable Energy Review 81:1427, 2018.
- Grützke, M., Kraft, V., Hoffmann, B., Klamor, S. et al. , “Aging Investigations of a Lithium-Ion Battery Electrolyte from a Field-Tested Hybrid Electric,” Journal of Power Sources 273:83-88, 2015, doi:10.1016/j.jpowsour.2014.09.064.
- Stich, M. , “Wasserverunreinigung in Lithium-Ionen-Batterien,” Ilmenau, Dissertation, 2019.
- Jousten, K. , editor, Handbook of Vacuum Technology (Weinheim: Wiley-VCH, 2016). ISBN:978-3-527-31834-6.
- Korthauer, R. , Lithium-Ion Batteries: Basics and application (Berlin: Springer-Verlag, 2018). ISBN:978-3-642-30652-5.
- Große Bley, W. , “Was Eine Gasdichtheitsprüfung Über Flüssigkeitslecks Aussagt,” DICHT 4:28, 2011.
- Wang, F., Wu, J., and Liu, Z. , “Surface Tension of Dimethyl Carbonate (C3H6O3),” Fluid Phase Equilibria 220:123, 2004.
- Große Bley, W. , “Helium Leak Detectors: From a Laboratory Device to Dedicated Industrial Leak Test Unit,” Vacuum 44(5-7):627, 1993.
- Seitz, S. , “Electric Cars: Requirements and leak testing methods for assuring quality”, INFICON Whitepaper, 2018.
- Rodríguez, A., Canosa, J., Domínguez, A., and Tojo, J. , “Isobaric Vapor-Liquid Equilibria of Dimethyl Carbonate with Alkanes and Cyclohexane at 101.3 kPa,” Fluid Phase Equilibria 198:95, 2002.
- NIST Mass Spectrometry Data Center, William E. Wallace, director , “Mass Spectra” in NIST Chemistry WebBook, NIST Standard Reference Database Number 69, Eds. P.J. Linstrom and W.G. Mallard, National Institute of Standards and Technology, Gaithersburg MD, 20899, doi:10.18434/T4D303.
- Decker, S. , “A Reliable and Tracer Gas Independent Leak Detector for Food Packages,” in 19th World Conference on Non-Destructive Testing 2016, Mo. 3.H, P159, 2016.