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Scientific Publication Citing Dragonfly

Multi-scale 3D investigations of a commercial 18650 Li-ion battery with correlative electron- and X-ray microscopy

Jeff Gelb (1), Donal P. Finegan (2), Dan J.L. Brett (2), Paul R. Shearing (2)
Journal of Power Sources, 357, May 2017: 77-86. DOI: 10.1016/j.jpowsour.2017.04.102


18650, Characterization, X-ray microscopy, Scanning-electron microscopy, Correlative microscopy, Tortuosity


In the present study, a commercial 18650 Li-ion cylindrical cell is investigated with non-destructive 3D X-ray microscopy across a range of length scales, beginning with a survey of the entire cell and non-destructively enlarging a smaller section... The results of this study elucidate the microstructural characteristics and potential degradation mechanisms of a commercial NCA battery and, further, establish a technique for extracting the Bruggeman exponent for a real-world microstructure using correlative microscopy.

How Our Software Was Used

Dragonfly was used to perform image segmentation, visualization, and analysis.

Author Affiliation

(1) Carl Zeiss X-Ray Microscopy, Pleasanton, CA, USA
(2) Electrochemical Innovation Lab, Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK

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