Mechanism and Kinetics of Li2S Precipitation in Lithium-Sulfur Batteries.
basic_science · Level V
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- Record sourced from PubMed, PMID 26257297.
- Also identified by DOI 10.1002/adma.201501559.
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Abstract
The kinetics of Li2 S 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.