Non-Destructive Detection of Local Aging in Lithium-Ion Pouch Cells by Multi-Directional Laser Scanning

Datacite citation style:
Sturm, Johannes (2018): Non-Destructive Detection of Local Aging in Lithium-Ion Pouch Cells by Multi-Directional Laser Scanning. Version 1. 4TU.ResearchData. dataset. https://doi.org/10.4121/uuid:c10a6b3f-efe9-41ce-99f6-4093df68c653
Other citation styles (APA, Harvard, MLA, Vancouver, Chicago, IEEE) available at Datacite
Dataset
Understanding the mechanical activity of lithium-ion cells during cycling and its connection with aging phenomena is essential to improve cell design and operation strategies. Previous studies of lithium-ion pouch cells [B. Rieger et al., Journal of Energy Storage, 8, 1 (2016)] have shown non-uniform swelling with local displacement overshoots during charging. In this experimental work, a novel three-dimensional laser scanning method is used to investigate local reversible and irreversible thickness changes of six commercial LiCoO2/graphite cells during a cyclic aging experiment. Three cycle scenarios were included and two cells each were exposed to a specific temperature and charging rate. The cells showing local displacement overshoots also exhibit non-uniform distributions of irreversible thickness change. Post-mortem analysis showed largely inhomogenously degraded surfaces of the single anode layers. It is shown that the cells’ irreversible thickness change correlates with capacity fade and internal resistance increase monitored via electrochemical impedance spectroscopy.
history
  • 2018-11-15 first online, published, posted
publisher
Journal of the Electrochemical Society
format
media types: application/octet-stream, application/pdf, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/zip, image/png
funding
  • European Commission, EVERLASTING 713771
organizations
Technical University of Munich, Institute for Electrical Energy Storage Technology
contributors
  • Jossen, A. (Andreas)
  • Rheinfeld, A. (Alexander)
  • Rieger, B. (Bernhard)
  • Spingler, F.B. (Franz Benjamin)

DATA

files (1)