title: Safe and Durable High-Temperature Lithium-Sulfur Batteries via Molecular Layer Deposited Coating.
abstract: Lithium-sulfur (Li-S) battery is a promising high energy storage candidate in electric vehicles. However, the commonly employed ether based electrolyte does not enable to realize safe high-temperature Li-S batteries due to the low boiling and flash temperatures. Traditional carbonate based electrolyte obtains safe physical properties at high temperature but does not complete reversible electrochemical reaction for most Li-S batteries. Here we realize safe high temperature Li-S batteries on universal carbon-sulfur electrodes by molecular layer deposited (MLD) alucone coating. Sulfur cathodes with MLD coating complete the reversible electrochemical process in carbonate electrolyte and exhibit a safe and ultrastable cycle life at high temperature, which promise practicable Li-S batteries for electric vehicles and other large-scale energy storage systems.
authors.affiliation: Department of Mechanical and Materials Engineering, University of Western Ontario , London, Ontario N6A 5B9, Canada.
authors.forename: Xia
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Mechanical and Materials Engineering, University of Western Ontario , London, Ontario N6A 5B9, Canada.
authors.forename: Andrew
authors.initials: A
authors.lastname: Lushington
authors.affiliation: Department of Mechanical and Materials Engineering, University of Western Ontario , London, Ontario N6A 5B9, Canada.
authors.forename: Qian
authors.initials: Q
authors.lastname: Sun
authors.affiliation: Department of Mechanical and Materials Engineering, University of Western Ontario , London, Ontario N6A 5B9, Canada.|Department of Chemistry, University of Western Ontario , London, Ontario N6A 5B7, Canada.
authors.forename: Wei
authors.initials: W
authors.lastname: Xiao
authors.affiliation: Department of Mechanical and Materials Engineering, University of Western Ontario , London, Ontario N6A 5B9, Canada.|Advanced Light Source, Lawrence Berkeley National Laboratory , MS6R2100, One Cyclotron Road, Berkeley, California 94720, United States.
authors.forename: Jian
authors.initials: J
authors.lastname: Liu
authors.affiliation: Department of Mechanical and Materials Engineering, University of Western Ontario , London, Ontario N6A 5B9, Canada.|Department of Chemistry, University of Western Ontario , London, Ontario N6A 5B7, Canada.
authors.forename: Biqiong
authors.initials: B
authors.lastname: Wang
authors.affiliation: Advanced Light Source, Lawrence Berkeley National Laboratory , MS6R2100, One Cyclotron Road, Berkeley, California 94720, United States.
authors.forename: Yifan
authors.initials: Y
authors.lastname: Ye
authors.affiliation: Advanced Light Source, Lawrence Berkeley National Laboratory , MS6R2100, One Cyclotron Road, Berkeley, California 94720, United States.
authors.forename: Kaiqi
authors.initials: K
authors.lastname: Nie
authors.affiliation: Canadian Light Source , 44 Innovation Boulevard, Saskatoon, Saskatchewan S7N 2 V3, Canada.
authors.forename: Yongfeng
authors.initials: Y
authors.lastname: Hu
authors.affiliation: Canadian Light Source , 44 Innovation Boulevard, Saskatoon, Saskatchewan S7N 2 V3, Canada.
authors.forename: Qunfeng
authors.initials: Q
authors.lastname: Xiao
authors.affiliation: Department of Mechanical and Materials Engineering, University of Western Ontario , London, Ontario N6A 5B9, Canada.
authors.forename: Ruying
authors.initials: R
authors.lastname: Li
authors.affiliation: Advanced Light Source, Lawrence Berkeley National Laboratory , MS6R2100, One Cyclotron Road, Berkeley, California 94720, United States.
authors.forename: Jinghua
authors.initials: J
authors.lastname: Guo
authors.affiliation: Department of Chemistry, University of Western Ontario , London, Ontario N6A 5B7, Canada.
authors.forename: Tsun-Kong
authors.initials: TK
authors.lastname: Sham
authors.affiliation: Department of Mechanical and Materials Engineering, University of Western Ontario , London, Ontario N6A 5B9, Canada.
authors.forename: Xueliang
authors.initials: X
authors.lastname: Sun
keywords: Lithium−sulfur batteries; MLD; carbonate based electrolyte; ether based electrolyte; high temperature; molecular layer deposition