Solid polymer electrolytes with sulfur based ionic liquid for lithium batteries

Aaron S. Fisher; Mian B. Khalid; Matthew Widstrom; Peter Kofinas

doi:10.1016/j.jpowsour.2011.07.081

Solid polymer electrolytes with sulfur based ionic liquid for lithium batteries

Aaron S. Fisher, Mian B. Khalid, Matthew Widstrom, Peter Kofinas

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

48 Scopus citations

Abstract

The electrochemical properties of a solid hybrid polymer electrolyte for lithium batteries based upon tri-ethyl sulfonium bis(trifluorosulfonyl) imide (S ₂TFSI), lithium TFSI, and poly(ethylene oxide) (PEO) is presented. We have synthesized homogenous freestanding films that possess low temperature ionic conductivity and wide electrochemical stability. The hybrid electrolyte has demonstrated ionic conductivity of 0.117 mS cm ^-1 at 0 °C, and 1.20 mS cm ^-1 at 25 °C. At slightly elevated temperature ionic conductivity is on the order of 10 mS cm ^-1. The hybrid electrolyte has demonstrated reversible stability against metallic lithium at the anodic interface and >4.5 V vs. Li/Li ⁺ at the cathodic interface.

Original language	English
Pages (from-to)	9767-9773
Number of pages	7
Journal	Journal of Power Sources
Volume	196
Issue number	22
DOIs	https://doi.org/10.1016/j.jpowsour.2011.07.081
State	Published - 15 Nov 2011
Externally published	Yes

Keywords

Ionic liquids
Lithium battery
Polymer electrolytes
Triethylsulfonium bis(trifluorosulonyl) imide

Access to Document

10.1016/j.jpowsour.2011.07.081

Cite this

@article{aad90c6194124f35929cdaf5a6367be9,

title = "Solid polymer electrolytes with sulfur based ionic liquid for lithium batteries",

abstract = "The electrochemical properties of a solid hybrid polymer electrolyte for lithium batteries based upon tri-ethyl sulfonium bis(trifluorosulfonyl) imide (S 2TFSI), lithium TFSI, and poly(ethylene oxide) (PEO) is presented. We have synthesized homogenous freestanding films that possess low temperature ionic conductivity and wide electrochemical stability. The hybrid electrolyte has demonstrated ionic conductivity of 0.117 mS cm -1 at 0 °C, and 1.20 mS cm -1 at 25 °C. At slightly elevated temperature ionic conductivity is on the order of 10 mS cm -1. The hybrid electrolyte has demonstrated reversible stability against metallic lithium at the anodic interface and >4.5 V vs. Li/Li + at the cathodic interface.",

keywords = "Ionic liquids, Lithium battery, Polymer electrolytes, Triethylsulfonium bis(trifluorosulonyl) imide",

author = "Fisher, {Aaron S.} and Khalid, {Mian B.} and Matthew Widstrom and Peter Kofinas",

note = "Funding Information: This work was supported by NSF grant no. CBET-0728975 and the generous donation of John and Maureen Hendricks . NMR work was performed at the University of Maryland Analytical NMR Service & Research Center, MS work was performed at University of Maryland Mass Spectrometry Facility and the Raman spectroscopy was performed at the University of Maryland Surface Analysis Center. Special thanks to Dr. Ayan Ghosh and Dr. Chunsheng Wang for productive discussions on batteries and electrolytes.",

year = "2011",

month = nov,

day = "15",

doi = "10.1016/j.jpowsour.2011.07.081",

language = "English",

volume = "196",

pages = "9767--9773",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier",

number = "22",

}

TY - JOUR

T1 - Solid polymer electrolytes with sulfur based ionic liquid for lithium batteries

AU - Fisher, Aaron S.

AU - Khalid, Mian B.

AU - Widstrom, Matthew

AU - Kofinas, Peter

N1 - Funding Information: This work was supported by NSF grant no. CBET-0728975 and the generous donation of John and Maureen Hendricks . NMR work was performed at the University of Maryland Analytical NMR Service & Research Center, MS work was performed at University of Maryland Mass Spectrometry Facility and the Raman spectroscopy was performed at the University of Maryland Surface Analysis Center. Special thanks to Dr. Ayan Ghosh and Dr. Chunsheng Wang for productive discussions on batteries and electrolytes.

PY - 2011/11/15

Y1 - 2011/11/15

N2 - The electrochemical properties of a solid hybrid polymer electrolyte for lithium batteries based upon tri-ethyl sulfonium bis(trifluorosulfonyl) imide (S 2TFSI), lithium TFSI, and poly(ethylene oxide) (PEO) is presented. We have synthesized homogenous freestanding films that possess low temperature ionic conductivity and wide electrochemical stability. The hybrid electrolyte has demonstrated ionic conductivity of 0.117 mS cm -1 at 0 °C, and 1.20 mS cm -1 at 25 °C. At slightly elevated temperature ionic conductivity is on the order of 10 mS cm -1. The hybrid electrolyte has demonstrated reversible stability against metallic lithium at the anodic interface and >4.5 V vs. Li/Li + at the cathodic interface.

AB - The electrochemical properties of a solid hybrid polymer electrolyte for lithium batteries based upon tri-ethyl sulfonium bis(trifluorosulfonyl) imide (S 2TFSI), lithium TFSI, and poly(ethylene oxide) (PEO) is presented. We have synthesized homogenous freestanding films that possess low temperature ionic conductivity and wide electrochemical stability. The hybrid electrolyte has demonstrated ionic conductivity of 0.117 mS cm -1 at 0 °C, and 1.20 mS cm -1 at 25 °C. At slightly elevated temperature ionic conductivity is on the order of 10 mS cm -1. The hybrid electrolyte has demonstrated reversible stability against metallic lithium at the anodic interface and >4.5 V vs. Li/Li + at the cathodic interface.

KW - Ionic liquids

KW - Lithium battery

KW - Polymer electrolytes

KW - Triethylsulfonium bis(trifluorosulonyl) imide

UR - http://www.scopus.com/inward/record.url?scp=80052497391&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2011.07.081

DO - 10.1016/j.jpowsour.2011.07.081

M3 - Article

AN - SCOPUS:80052497391

SN - 0378-7753

VL - 196

SP - 9767

EP - 9773

JO - Journal of Power Sources

JF - Journal of Power Sources

IS - 22

ER -

Solid polymer electrolytes with sulfur based ionic liquid for lithium batteries

Abstract

Keywords

Access to Document

Fingerprint

Cite this