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Lithium Sulfide-Carbon Composites via Aerosol Spray Pyrolysis as Cathode Materials for Lithium-Sulfur Batteries.

ABSTRACT: We demonstrate a new technique to produce lithium sulfide-carbon composite (Li₂S-C) cathodes for lithium-sulfur batteries via aerosol spray pyrolysis (ASP) followed by sulfurization. Specifically, lithium carbonate-carbon (Li₂CO₃-C) composite nanoparticles are first synthesized via ASP from aqueous solutions of sucrose and lithium salts including nitrate (LiNO₃), acetate (CH₃COOLi), and Li₂CO₃, respectively. The obtained Li₂CO₃-C composites are subsequently converted to Li₂S-C through sulfurization by reaction to H₂S. Electrochemical characterizations show excellent overall capacity and cycle stability of the Li₂S-C composites with relatively high areal loading of Li₂S and low electrolyte/Li₂S ratio. The Li₂S-C nanocomposites also demonstrate clear structure-property relationships.

SUBMITTER: Hart N

PROVIDER: S-EPMC6190730 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Lithium Sulfide-Carbon Composites via Aerosol Spray Pyrolysis as Cathode Materials for Lithium-Sulfur Batteries.

Hart Noam N Shi Jiayan J Zhang Jian J Fu Chengyin C Guo Juchen J

Frontiers in chemistry 20181009

We demonstrate a new technique to produce lithium sulfide-carbon composite (Li2S-C) cathodes for lithium-sulfur batteries via aerosol spray pyrolysis (ASP) followed by sulfurization. Specifically, lithium carbonate-carbon (Li2CO3-C) composite nanoparticles are first synthesized via ASP from aqueous solutions of sucrose and lithium salts including nitrate (LiNO3), acetate (CH3COOLi), and Li2CO3, respectively. The ...[more]

PMID: 30356846

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