Worldwide trends in mobile electrification will skyrocket demands for lithium-based battery production, driven by the popularity of electric vehicles. However, both lithium metal batteries and lithium ion batteries face severe safety issues due to dendrite nucleation and growth process. Li deposition is significantly influenced by interfacial factors and charging conditions. In this paper, an electrochemical model considering the internal and external factors is proposed based on Monte Carlo method. The influence of internal solid electrolyte interphase (SEI) porosity, thickness and the external conditions on dendrite growth process is systematically described. The simulation results support that the three factors investigated in this model could synergistically regulate the dendrite growth process. Three competition mechanisms are proposed to tailor lithium deposition for Li-based batteries and numerical solutions for variation pattern of dendrite growth with time are fitted. A three-step process describing kinetic process of lithium deposition is proposed. To achieve dendrite-free charging process, charging strategies and emerging materials design should be considered, including physicochemical materials engineering, artificial SEI, and design for dynamic safety boundary. This work could contribute to the foundation for insights of Li deposition mechanism, which is promising to provide guidelines for next-generation high-energy-density and safe batteries in CHAIN framework.
Bibliographical note© 2022, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.
This document is the author’s post-print version, incorporating any revisions agreed during the peer-review process. Some differences between the published version and this version may remain and you are advised to consult the published version if you wish to cite from it.
FunderNational Natural Science Foundation of China (52102470).
- Competition mechanism
- Dendrite growth
- Li-based batteries
- Synergistic adjustment
ASJC Scopus subject areas
- Fuel Technology
- Energy Engineering and Power Technology
- Energy (miscellaneous)