Measurement of anisotropic volumetric resistivity in lithium ion electrodes.

Autor:	Lain MJ; WMG, University of Warwick Coventry CV4 7AL UK m.j.lain@warwick.ac.uk., Apachitei G; WMG, University of Warwick Coventry CV4 7AL UK m.j.lain@warwick.ac.uk., Dogaru DE; WMG, University of Warwick Coventry CV4 7AL UK m.j.lain@warwick.ac.uk., Widanage WD; WMG, University of Warwick Coventry CV4 7AL UK m.j.lain@warwick.ac.uk., Marco J; WMG, University of Warwick Coventry CV4 7AL UK m.j.lain@warwick.ac.uk., Copley M; WMG, University of Warwick Coventry CV4 7AL UK m.j.lain@warwick.ac.uk.
Jazyk:	angličtina
Zdroj:	RSC advances [RSC Adv] 2023 Nov 14; Vol. 13 (47), pp. 33437-33445. Date of Electronic Publication: 2023 Nov 14 (Print Publication: 2023).
DOI:	10.1039/d3ra06412c
Abstrakt:	Measurements of the electronic conductivity of lithium ion coatings are an important part of electrode development, particularly for thicker electrodes and in high power applications. A resistance measurement system with 46 probes has been used to characterise lithium ion electrodes, with different formulations and coat weights. The results show that the total through plane resistance is dominated by the interface resistance between the coating and the metal foil, rather than the volumetric resistivity of the coating. For coatings containing carbon nano-tubes, the in plane resistivities in the coating and perpendicular directions are different. A finite volume model was developed to help analyse and interpret the resistivity data. Competing Interests: There are no conflicts to declare. (This journal is © The Royal Society of Chemistry.)
Databáze:	MEDLINE
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