The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Local Tortuosity Inhomogeneities in a Lithium Battery Composite Electrode
Abstract
While battery performance is well predicted by the macrohomogeneous model of Newman and co-workers, predicting degradation and failure remains a challenge. It may be that, like most materials, failure depends on local imperfections and inhomogeneities. In this work we use tomographic data previously obtained for a commercial lithium-ion battery graphite composite electrode to evaluate the homogeneity of the tortuosity of the electrode by directly integrating the transport equations through its pore space. We find that the tortuosity of two halves of the electrode, each roughly 250 × 350 × 50 μm differ by about 30%. On a smaller scale, 80 × 100 × 50 μm, local tortuosity variations up to a factor of 3 were observed. The Bruggeman relationship between porosity and tortuosity is also examined. We find that local porosity alone does not determine local tortuosity very well, and that the average relationship between porosity and tortuosity is not well predicted by the Bruggeman relationship for this electrode. We suggest that large local variations in tortuosity can lead to reduced capacity and life.
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Cites
Bruggeman, D. A. G. (1935) · Annalen der Physik · doi:10.1002/andp.19354160705 · Cited by 8,645
Modeling of Galvanostatic Charge and Discharge of the Lithium/Polymer/Insertion Cell
Doyle, M., Fuller, T. F., & Newman, J. (1993) · Journal of The Electrochemical Society · doi:10.1149/1.2221597 · Cited by 4,328
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Li plating as unwanted side reaction in commercial Li-ion cells – A review
Waldmann, T., Hogg, B.-I., & Wohlfahrt-Mehrens, M. (2018) · Journal of Power Sources · doi:10.1016/j.jpowsour.2018.02.063 · Cited by 895
In-operando high-speed tomography of lithium-ion batteries during thermal runaway
Finegan, D. P., Scheel, M., Robinson, J. B., Tjaden, B., Hunt, I., Mason, T. J., Millichamp, J., Di Michiel, M., Offer, G. J., Hinds, G., et al. (2015) · Nature Communications · doi:10.1038/ncomms7924 · Cited by 844
Self-citationTjaden, B., Cooper, S. J., Brett, D. J., Kramer, D., & Shearing, P. R. (2016) · Current Opinion in Chemical Engineering · doi:10.1016/j.coche.2016.02.006 · Cited by 532
Self-citationLu, X., Bertei, A., Finegan, D. P., Tan, C., Daemi, S. R., Weaving, J. S., O’Regan, K. B., Heenan, T. M. M., Hinds, G., Kendrick, E., et al. (2020) · Nature Communications · doi:10.1038/s41467-020-15811-x · Cited by 513
Self-citationHigh-performance battery electrodes via magnetic templating
Sander, J. S., Erb, R. M., Li, L., Gurijala, A., & Chiang, Y.-M. (2016) · Nature Energy · doi:10.1038/nenergy.2016.99 · Cited by 409
Metadata
- Authors
- Kehrwald, D., Shearing, P. R., Brandon, N. P., Sinha, P. K., & Harris, S. J.
- Venue
- Journal of The Electrochemical Society
- Publisher
- The Electrochemical Society
- Published
- 2011
- Volume
- 158
- Issue
- 12
- Pages
- A1393
- ISSN
- 0013-4651 (ISSN-L)
- OpenAlex
- W2076282900
- Cited by
- 250
- References
- 2
- FWCI
- 7.58
- Type
- journal article
- Language
- en
- Open access
- closed
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- Kehrwald, D., Shearing, P. R., Brandon, N. P., Sinha, P. K., & Harris, S. J. (2011). Local Tortuosity Inhomogeneities in a Lithium Battery Composite Electrode. Journal of The Electrochemical Society. https://doi.org/10.1149/2.079112jes
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