title: Mechanism and Kinetics of Li2S Precipitation in Lithium-Sulfur Batteries.
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.
authors.affiliation: Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA, 02139, USA.
authors.forename: Frank Y
authors.initials: FY
authors.lastname: Fan
authors.affiliation: Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA, 02139, USA.
authors.forename: W Craig
authors.initials: WC
authors.lastname: Carter
authors.affiliation: Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA, 02139, USA.
authors.forename: Yet-Ming
authors.initials: YM
authors.lastname: Chiang
keywords: electrodeposition; kinetics; lithium-sulfur batteries; morphology