Doped sulfone electrolytes for high voltage Li-ion cell applications

Xiaoguang Sun; Charles Angell

doi:10.1016/j.elecom.2009.05.020

Doped sulfone electrolytes for high voltage Li-ion cell applications

Xiaoguang Sun, Charles Angell

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

114 Scopus citations

Abstract

We show that, with appropriate doping, the ethersulfone-based electrolytes that we earlier reported to have 5.6 V electrochemical windows but poor cycling performance in Li-ion cells, can succeed. We show they can be used to make cells that, at C/20 charge/discharge rates, have cycling performance equal to those with the standard LiPF₆-carbonate electrolytes. A difference in performance that develops at higher C is removed by substituting an ethersulfone with one fewer methyl groups, for lower viscosity.

Original language	English (US)
Pages (from-to)	1418-1421
Number of pages	4
Journal	Electrochemistry Communications
Volume	11
Issue number	7
DOIs	https://doi.org/10.1016/j.elecom.2009.05.020
State	Published - Jul 2009

Keywords

Additive
Cell cycling
Lithium-ion battery
Sulfone
Vinylene carbonate

ASJC Scopus subject areas

Electrochemistry

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10.1016/j.elecom.2009.05.020

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title = "Doped sulfone electrolytes for high voltage Li-ion cell applications",

abstract = "We show that, with appropriate doping, the ethersulfone-based electrolytes that we earlier reported to have 5.6 V electrochemical windows but poor cycling performance in Li-ion cells, can succeed. We show they can be used to make cells that, at C/20 charge/discharge rates, have cycling performance equal to those with the standard LiPF6-carbonate electrolytes. A difference in performance that develops at higher C is removed by substituting an ethersulfone with one fewer methyl groups, for lower viscosity.",

keywords = "Additive, Cell cycling, Lithium-ion battery, Sulfone, Vinylene carbonate",

author = "Xiaoguang Sun and Charles Angell",

note = "Funding Information: This work was made possible by a grant from the Arizona State University Catalyst fund. The author (X.G. Sun) wants to thank Dr. Wu Xu for the invaluable suggestions and discussions during the cell preparation and test.",

year = "2009",

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doi = "10.1016/j.elecom.2009.05.020",

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T1 - Doped sulfone electrolytes for high voltage Li-ion cell applications

AU - Sun, Xiaoguang

AU - Angell, Charles

N1 - Funding Information: This work was made possible by a grant from the Arizona State University Catalyst fund. The author (X.G. Sun) wants to thank Dr. Wu Xu for the invaluable suggestions and discussions during the cell preparation and test.

PY - 2009/7

Y1 - 2009/7

N2 - We show that, with appropriate doping, the ethersulfone-based electrolytes that we earlier reported to have 5.6 V electrochemical windows but poor cycling performance in Li-ion cells, can succeed. We show they can be used to make cells that, at C/20 charge/discharge rates, have cycling performance equal to those with the standard LiPF6-carbonate electrolytes. A difference in performance that develops at higher C is removed by substituting an ethersulfone with one fewer methyl groups, for lower viscosity.

AB - We show that, with appropriate doping, the ethersulfone-based electrolytes that we earlier reported to have 5.6 V electrochemical windows but poor cycling performance in Li-ion cells, can succeed. We show they can be used to make cells that, at C/20 charge/discharge rates, have cycling performance equal to those with the standard LiPF6-carbonate electrolytes. A difference in performance that develops at higher C is removed by substituting an ethersulfone with one fewer methyl groups, for lower viscosity.

KW - Additive

KW - Cell cycling

KW - Lithium-ion battery

KW - Sulfone

KW - Vinylene carbonate

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SN - 1388-2481

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SP - 1418

EP - 1421

JO - Electrochemistry Communications

JF - Electrochemistry Communications

IS - 7

ER -

Doped sulfone electrolytes for high voltage Li-ion cell applications

Abstract

Keywords

ASJC Scopus subject areas

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