Numerical simulation of lithium dendrite growth in lithium metal batteries: Effect of superimposed AC/DC electric fields on dendrites suppression

Wang, H; Wang, D; Jiang, H; Chen, X; Liu, X; Sun, B; Wang, Y

Numerical simulation of lithium dendrite growth in lithium metal batteries: Effect of superimposed AC/DC electric fields on dendrites suppression

Wang, H Wang, D Jiang, H Chen, X Liu, X Sun, B

Wang, Y

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Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: Journal of Power Sources, 2025, 640
Issue Date:: 2025-06-01

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Field	Value	Language
dc.contributor.author	Wang, H
dc.contributor.author	Wang, D
dc.contributor.author	Jiang, H
dc.contributor.author	Chen, X
dc.contributor.author	Liu, X
dc.contributor.author	Sun, B https://orcid.org/0000-0002-4365-486X
dc.contributor.author	Wang, Y
dc.date.accessioned	2025-10-15T03:48:10Z
dc.date.available	2025-10-15T03:48:10Z
dc.date.issued	2025-06-01
dc.identifier.citation	Journal of Power Sources, 2025, 640
dc.identifier.issn	0378-7753
dc.identifier.issn	1873-2755
dc.identifier.uri	http://hdl.handle.net/10453/190399
dc.description.abstract	The employment of external electric fields is a promising strategy for alleviating lithium dendrite formation during lithium metal battery charging. However, the underlying mechanisms that govern dendrite formation remain unclear. Herein, we present numerical insights into the impact of externally superimposed alternating current (AC) and direct current (DC) electric fields on the suppression of lithium dendrite formation in lithium metal batteries. A theoretical model by coupling the phase field, electric field and ion concentration field is established to predict lithium dendrite growth. Numerical investigations are carried out to understand the fundamental mechanisms of dendrite formation and inhibition in the presence of external AC/DC electric fields. External AC/DC fields applied perpendicular to the internal field enhance Li-ion diffusion by distorting electric field distribution, thereby reducing concentration gradients and local current densities near the anode surface. Similarly, AC/DC fields aligned parallel to the internal field promote uniform lithium deposition by accelerating Li-ion migration and diffusion through an intensified electric field. Consequently, the simultaneous superimposition of AC and DC fields demonstrates an optimal dendrite inhibition effect, reducing the dendrite area to 14.01 % compared to conditions without external fields. This work offers a theoretical basis for lithium dendrite suppression via superimposed electric fields.
dc.language	English
dc.publisher	ELSEVIER
dc.relation	http://purl.org/au-research/grants/arc/FT220100561
dc.relation.ispartof	Journal of Power Sources
dc.relation.isbasedon	10.1016/j.jpowsour.2025.236721
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	03 Chemical Sciences, 09 Engineering
dc.subject.classification	Energy
dc.subject.classification	34 Chemical sciences
dc.subject.classification	40 Engineering
dc.title	Numerical simulation of lithium dendrite growth in lithium metal batteries: Effect of superimposed AC/DC electric fields on dendrites suppression
dc.type	Journal Article
utslib.citation.volume	640
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Science
pubs.organisational-group	University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	University of Technology Sydney/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Clean Energy Technology (CCET)
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2025-10-15T03:48:04Z
pubs.publication-status	Published
pubs.volume	640

Abstract:

The employment of external electric fields is a promising strategy for alleviating lithium dendrite formation during lithium metal battery charging. However, the underlying mechanisms that govern dendrite formation remain unclear. Herein, we present numerical insights into the impact of externally superimposed alternating current (AC) and direct current (DC) electric fields on the suppression of lithium dendrite formation in lithium metal batteries. A theoretical model by coupling the phase field, electric field and ion concentration field is established to predict lithium dendrite growth. Numerical investigations are carried out to understand the fundamental mechanisms of dendrite formation and inhibition in the presence of external AC/DC electric fields. External AC/DC fields applied perpendicular to the internal field enhance Li-ion diffusion by distorting electric field distribution, thereby reducing concentration gradients and local current densities near the anode surface. Similarly, AC/DC fields aligned parallel to the internal field promote uniform lithium deposition by accelerating Li-ion migration and diffusion through an intensified electric field. Consequently, the simultaneous superimposition of AC and DC fields demonstrates an optimal dendrite inhibition effect, reducing the dendrite area to 14.01 % compared to conditions without external fields. This work offers a theoretical basis for lithium dendrite suppression via superimposed electric fields.

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http://hdl.handle.net/10453/190399