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Morphometry of Dendritic Materials in Rechargeable Batteries

Aryanfar, Asghar and Medlej, Sajed and Goddard III, William A. (2021) Morphometry of Dendritic Materials in Rechargeable Batteries. Journal of Power Sources, 481 . Art. No. 228914. ISSN 0378-7753.

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The formation of highly-branched dendrites during the charging period of the rechargeable batteries is a critical safety drawback, causing capacity decay in particular during utilization of high energy-density metallic elements as electrode. We develop a comparative framework for predicting the branching tendency of the conventional metallic candidates (Li, Na, Mg & Zn) in connection with their inherent material properties as well as representative spatial variants. Our framework covers the kinetic aspect of the electrodeposition, where the brownian motion leads to the formation randomly-branched microstructures. The ionic species are reduced in the proximity of the dendrite body and turn into the atom with the success probability derived from the electron transfer principles. Our development has been carried out in the atomic scale (∼Å) and the time interval of inter-ionic collisions (∼ps) and the determining sub-factors leading to branched evolution are analyzed separately. The results provide intuitive understanding for the effective utilization of the electrode materials in rechargeable batteries based on the given specific application, such as magnitude of the charge carriers, the applied current density or the thickness of the formed microstructures.

Item Type:Article
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URLURL TypeDescription
Aryanfar, Asghar0000-0002-8890-077X
Goddard III, William A.0000-0003-0097-5716
Additional Information:© 2020 Elsevier B.V. Received 30 May 2020, Revised 10 August 2020, Accepted 2 September 2020, Available online 30 September 2020. CRediT authorship contribution statement: Asghar Aryanfar: Conceptualization, Validation, Formal analysis, Investigation, Data curation, Writing - original draft, Writing - review & editing, Visualization, Funding acquisition. Sajed Medlej: Methodology, Resources, Software, Writing - review &editing, Supervision, Project administration. William A. Goddard III: Consultation, Supervision, Project administration. The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Subject Keywords:Dendritic evolution; Electrodeposition; Electrode materials; Reaction probability
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Record Number:CaltechAUTHORS:20200930-101723673
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Official Citation:Asghar Aryanfar, Sajed Medlej, William A. Goddard III, Morphometry of Dendritic Materials in Rechargeable Batteries, Journal of Power Sources, Volume 481, 2021, 228914, ISSN 0378-7753, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:105669
Deposited By: Tony Diaz
Deposited On:30 Sep 2020 17:44
Last Modified:27 Mar 2021 06:15

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