High-Performance Lithium-Sulfur Batteries Based on Ionic-Liquid Electrolytes with Bis(fluorolsufonyl)imide Anions and Sulfur-Encapsulated Highly Disordered Activated Carbon

Gregory Salitra; Elena Markevich; Ariel Rosenman; Yosef Talyosef; Doron Aurbach; Arnd Garsuch

doi:https://doi.org/10.1002/celc.201402126

High-Performance Lithium-Sulfur Batteries Based on Ionic-Liquid Electrolytes with Bis(fluorolsufonyl)imide Anions and Sulfur-Encapsulated Highly Disordered Activated Carbon

Gregory Salitra, Elena Markevich, Ariel Rosenman, Yosef Talyosef, Doron Aurbach, Arnd Garsuch

Department of Chemistry

Bar-Ilan University

Research output: Contribution to journal › Article › peer-review

Abstract

Composite sulfur-carbon electrodes were prepared by encapsulating sulfur into the micropores of two types of activated carbons, nano-sized carbon BP2000 and micrometer-sized carbon. The galvanostatic cycling performance of the obtained electrodes was studied in 0.5M lithium bis(trifluoromethylsulfonyl)imide (Li TFSI) in 1-methyl-1-butylpyrrolidinium TFSI (BMP TFSI), 0.5M Li TFSI in 1-methyl-1-propylpyrrolidinium bis(fluorosufonyl)imide (MPP FSI), and 0.5M Li bis(fluorosulfonyl)imide (FSI) in MPP FSI ionic-liquid (IL) electrolyte solutions. It is shown that the performance of Li-S cells is achieved by matching the IL anion, the morphology and structure of the carbon matrices, and the sulfur loading. High-performance of Li-S cells, with composite Li-S cathodes prepared with micrometer-sized activated carbon in IL electrolyte with FSI anions, are demonstrated at 60°C. After 48cycles, the discharge capacity of the cells approaches a value of 1235mAhg^-1 with acycling efficiency of about 100%.

Original language	English
Pages (from-to)	1492-1496
Number of pages	5
Journal	ChemElectroChem
Volume	1
Issue number	9
DOIs	https://doi.org/10.1002/celc.201402126
State	Published - 16 Sep 2014

Keywords

Activated carbons
Electrodes
Electrolytes
Ionic liquids
Li-S batteries

All Science Journal Classification (ASJC) codes

Catalysis
Electrochemistry

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https://doi.org/10.1002/celc.201402126

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title = "High-Performance Lithium-Sulfur Batteries Based on Ionic-Liquid Electrolytes with Bis(fluorolsufonyl)imide Anions and Sulfur-Encapsulated Highly Disordered Activated Carbon",

abstract = "Composite sulfur-carbon electrodes were prepared by encapsulating sulfur into the micropores of two types of activated carbons, nano-sized carbon BP2000 and micrometer-sized carbon. The galvanostatic cycling performance of the obtained electrodes was studied in 0.5M lithium bis(trifluoromethylsulfonyl)imide (Li TFSI) in 1-methyl-1-butylpyrrolidinium TFSI (BMP TFSI), 0.5M Li TFSI in 1-methyl-1-propylpyrrolidinium bis(fluorosufonyl)imide (MPP FSI), and 0.5M Li bis(fluorosulfonyl)imide (FSI) in MPP FSI ionic-liquid (IL) electrolyte solutions. It is shown that the performance of Li-S cells is achieved by matching the IL anion, the morphology and structure of the carbon matrices, and the sulfur loading. High-performance of Li-S cells, with composite Li-S cathodes prepared with micrometer-sized activated carbon in IL electrolyte with FSI anions, are demonstrated at 60°C. After 48cycles, the discharge capacity of the cells approaches a value of 1235mAhg-1 with acycling efficiency of about 100%.",

keywords = "Activated carbons, Electrodes, Electrolytes, Ionic liquids, Li-S batteries",

author = "Gregory Salitra and Elena Markevich and Ariel Rosenman and Yosef Talyosef and Doron Aurbach and Arnd Garsuch",

note = "Publisher Copyright: {\textcopyright} 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.",

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T1 - High-Performance Lithium-Sulfur Batteries Based on Ionic-Liquid Electrolytes with Bis(fluorolsufonyl)imide Anions and Sulfur-Encapsulated Highly Disordered Activated Carbon

AU - Salitra, Gregory

AU - Markevich, Elena

AU - Rosenman, Ariel

AU - Talyosef, Yosef

AU - Aurbach, Doron

AU - Garsuch, Arnd

PY - 2014/9/16

Y1 - 2014/9/16

N2 - Composite sulfur-carbon electrodes were prepared by encapsulating sulfur into the micropores of two types of activated carbons, nano-sized carbon BP2000 and micrometer-sized carbon. The galvanostatic cycling performance of the obtained electrodes was studied in 0.5M lithium bis(trifluoromethylsulfonyl)imide (Li TFSI) in 1-methyl-1-butylpyrrolidinium TFSI (BMP TFSI), 0.5M Li TFSI in 1-methyl-1-propylpyrrolidinium bis(fluorosufonyl)imide (MPP FSI), and 0.5M Li bis(fluorosulfonyl)imide (FSI) in MPP FSI ionic-liquid (IL) electrolyte solutions. It is shown that the performance of Li-S cells is achieved by matching the IL anion, the morphology and structure of the carbon matrices, and the sulfur loading. High-performance of Li-S cells, with composite Li-S cathodes prepared with micrometer-sized activated carbon in IL electrolyte with FSI anions, are demonstrated at 60°C. After 48cycles, the discharge capacity of the cells approaches a value of 1235mAhg-1 with acycling efficiency of about 100%.

AB - Composite sulfur-carbon electrodes were prepared by encapsulating sulfur into the micropores of two types of activated carbons, nano-sized carbon BP2000 and micrometer-sized carbon. The galvanostatic cycling performance of the obtained electrodes was studied in 0.5M lithium bis(trifluoromethylsulfonyl)imide (Li TFSI) in 1-methyl-1-butylpyrrolidinium TFSI (BMP TFSI), 0.5M Li TFSI in 1-methyl-1-propylpyrrolidinium bis(fluorosufonyl)imide (MPP FSI), and 0.5M Li bis(fluorosulfonyl)imide (FSI) in MPP FSI ionic-liquid (IL) electrolyte solutions. It is shown that the performance of Li-S cells is achieved by matching the IL anion, the morphology and structure of the carbon matrices, and the sulfur loading. High-performance of Li-S cells, with composite Li-S cathodes prepared with micrometer-sized activated carbon in IL electrolyte with FSI anions, are demonstrated at 60°C. After 48cycles, the discharge capacity of the cells approaches a value of 1235mAhg-1 with acycling efficiency of about 100%.

KW - Activated carbons

KW - Electrodes

KW - Electrolytes

KW - Ionic liquids

KW - Li-S batteries

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DO - https://doi.org/10.1002/celc.201402126

M3 - مقالة

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High-Performance Lithium-Sulfur Batteries Based on Ionic-Liquid Electrolytes with Bis(fluorolsufonyl)imide Anions and Sulfur-Encapsulated Highly Disordered Activated Carbon

Abstract

Keywords

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