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Toward Dendrite-Free Metallic Lithium Anodes: From Structural Design to Optimal Electrochemical Diffusion Kinetics.
ACS Nano, DOI: 10.1021/acsnano.2c08480 (2022)
Lithium metal anodes are ideal for realizing high-energy-density batteries owing to their advantages, namely high capacity and low reduction potentials. However, the utilization of lithium anodes is restricted by the detrimental lithium dendrite formation, repeated formation and fracturing of the solid electrolyte interphase (SEI), and large volume expansion, resulting in severe "dead lithium"and subsequent short circuiting. Currently, the researches are principally focused on inhibition of dendrite formation toward extending and maintaining battery lifespans. Herein, we summarize the strategies employed in interfacial engineering and current-collector host designs as well as the emerging electrochemical catalytic methods for evolving-accelerating-ameliorating lithium ion/atom diffusion processes. First, strategies based on the fabrication of robust SEIs are reviewed from the aspects of compositional constituents including inorganic, organic, and hybrid SEI layers derived from electrolyte additives or artificial pretreatments. Second, the summary and discussion are presented for metallic and carbon-based three-dimensional current collectors serving as lithium hosts, including their functionality in decreasing local deposition current density and the effect of introducing lithiophilic sites. Third, we assess the recent advances in exploring alloy compounds and atomic metal catalysts to accelerate the lateral lithium ion/atom diffusion kinetics to average the spatial lithium distribution for smooth plating. Finally, the opportunities and challenges of metallic lithium anodes are presented, providing insights into the modulation of diffusion kinetics toward achieving dendrite-free lithium metal batteries.
Impact Factor
Scopus SNIP
Altmetric
18.027
2.479
Anmerkungen
Besondere Publikation
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Review
Schlagwörter
3d Current Collector ; Artificial Sei Layer ; Electrochemical Diffusion Modulation ; Kinetics Enhancement ; Lateral Plating/deposition ; Lithiophilic Site ; Lithium Dendrite ; Lithium Ion/atom Diffusion ; Lithium Metal Battery ; Single Atomic Catalyst
Sprache
englisch
Veröffentlichungsjahr
2022
HGF-Berichtsjahr
2022
ISSN (print) / ISBN
1936-0851
e-ISSN
1936-086X
Zeitschrift
ACS Nano
Verlag
American Chemical Society (ACS)
Begutachtungsstatus
Peer reviewed
Institut(e)
Helmholtz AI - KIT (HAI - KIT)
Scopus ID
85141551670
Erfassungsdatum
2022-11-21