Mechanism and Kinetics of Li2S Precipitation in Lithium-Sulfur Batteries

Mechanism and Kinetics of Li2S Precipitation in Lithium-Sulfur Batteries

The kinetics of Li2S electrodeposition onto carbon in lithium–sulfur batteries are characterized. Electrodeposition is found to be dominated by a 2D nucleation and growth process with rate constants that depend strongly on the electrolyte solvent. Nucleation is found to require a greater overpotenti...

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Veröffentlicht in:Advanced materials (Weinheim) 2015-09, Vol.27 (35), p.5203-5209
Hauptverfasser: Fan, Frank Y., Carter, W. Craig, Chiang, Yet-Ming
Format: Artikel
Sprache:eng
Schlagworte:
electrodeposition
kinetics
lithium-sulfur batteries
morphology
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Zusammenfassung:The kinetics of Li2S electrodeposition onto carbon in lithium–sulfur batteries are characterized. Electrodeposition is found to be dominated by a 2D nucleation and growth process with rate constants that depend strongly on the electrolyte solvent. Nucleation is found to require a greater overpotential than growth, which results in a morphology that is dependent on the discharge rate.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201501559