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The effect of pre-analysis washing on the surface film of graphite electrodes
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Somerville, Limhi, Bareño, J., Jennings, P. A. (Paul A.), McGordon, Andrew, Lyness, Christopher and Bloom, I. (2016) The effect of pre-analysis washing on the surface film of graphite electrodes. Electrochimica Acta, 206 . pp. 70-76. doi:10.1016/j.electacta.2016.04.133
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Official URL: http://dx.doi.org/10.1016/j.electacta.2016.04.133
Abstract
Electrodes are routinely washed to remove electrolyte deposits, salt, and high boiling point solvents prior to analysis with surface-sensitive techniques. The effect of washing on the surface films of graphite electrodes from LiCoO2/graphite cells, which contained varying amounts of vinylene carbonate (VC), was investigated by comparing the microstructure and chemical composition. We confirmed that there are two different kinds of films on the surface of the electrodes: one at low and one at high VC content concentration. Far from being limited to remove extraneous salt deposits from the surface of the sample, DMC washing was found to completely remove one and to affect the composition of deeper strata in the other.
| Item Type: | Journal Article | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Subjects: | Q Science > QD Chemistry | ||||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||
| Library of Congress Subject Headings (LCSH): | Graphene, Lithium ion batteries | ||||||||||
| Journal or Publication Title: | Electrochimica Acta | ||||||||||
| Publisher: | Pergamon | ||||||||||
| ISSN: | 0013-4686 | ||||||||||
| Official Date: | 10 July 2016 | ||||||||||
| Dates: |
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| Volume: | 206 | ||||||||||
| Number of Pages: | 7 | ||||||||||
| Page Range: | pp. 70-76 | ||||||||||
| DOI: | 10.1016/j.electacta.2016.04.133 | ||||||||||
| Status: | Peer Reviewed | ||||||||||
| Publication Status: | Published | ||||||||||
| Access rights to Published version: | Open Access | ||||||||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC), Jaguar PLC, United States. Department of Energy | ||||||||||
| Grant number: | DE-AC02- 06CH11357 (DOE) | ||||||||||
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