85428 20200117221659.0 doi 10.1039/c7cc08373d sideral 113655 ART-2018-113655 eng Vicente, Nuria New approaches to the lithiation kinetics in reaction-limited battery electrodes through electrochemical impedance spectroscopy 2018 Access copy available to the general public Unrestricted Electrochemical impedance spectroscopy is a widely employed technique probing kinetic limitations in the charging of battery electrodes. Hindrance mechanisms locate at the interfaces between the active material and the electrolyte, and in the bulk of the reacting compound. Rate-limiting mechanisms are viewed as resistive circuit elements and can be extracted using standard impedance analyzers. Classical impedance models consider charge transport, mainly ion diffusion as slower carrier, as the principal kinetic limitation impeding full electrode charging. This is indeed the case for many technologically relevant battery compounds. In other instances, instead of being diffusion-limited, electrodes may undergo charging limitation caused by the kinetics of the reduction reaction itself. Specific impedance models for reactionlimited mechanisms are summarized here and proved for relevant electrode compounds, in particular for conversion or alloying electrodes in which Li+ intake produces a full rearrangement of the lattice structure with significant atomic displacement. info:eu-repo/grantAgreement/ES/MINECO/MAT2016-76892-C3-1-R info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 6.164 2018 CHEMISTRY, MULTIDISCIPLINARY 31 / 172 = 0.18 2018 Q1 T1 2.177 2018 Catalysis 2018 Q1 Ceramics and Composites 2018 Q1 Chemistry (miscellaneous) 2018 Q1 Surfaces, Coatings and Films 2018 Q1 Materials Chemistry 2018 Q1 Metals and Alloys 2018 Q1 Electronic, Optical and Magnetic Materials 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0001-7246-2149 Haro, Marta Garcia-Belmonte, G. 54 (2018), 1025 - 1040 Chem. commun. CHEMICAL COMMUNICATIONS 1359-7345 https://pubs.rsc.org/en/content/articlelanding/2018/cc/c7cc08373d#!divAbstract Texto completo de la revista 6784532 http://zaguan.unizar.es/record/85428/files/texto_completo.pdf Postprint 95011 http://zaguan.unizar.es/record/85428/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:85428 articulos driver 2020-01-17-22:12:13 ARTICLE