Characterization and properties of ternary P(VdF-HFP)-LiTFSI-EMITFSI ionic liquid polymer electrolytes

Peixia Yang; Wenyu Cui; Libo Li; Lei Liu; Maozhong An

doi:10.1016/j.solidstatesciences.2012.02.005

Characterization and properties of ternary P(VdF-HFP)-LiTFSI-EMITFSI ionic liquid polymer electrolytes

Peixia Yang^*
, Wenyu Cui
, Libo Li
, Lei Liu
, Maozhong An

^*Corresponding author for this work

School of Chemistry and Chemical Engineering, Harbin Institute of Technology
Harbin University of Science and Technology

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

46 Scopus citations

Abstract

Gel polymer electrolytes containing 1-ethyl-3-methylimidazolium-bis (trifluoromethyl-sulfnyl)imide (EMITFSI) ionic liquid were prepared for lithium ion batteries by solution casting method. Thermal and electrochemical properties have been determined for the gel polymer electrolytes. Proper addition of EMITFSI to the P(VdF-HFP)-LiTFSI polymer electrolyte improves the ionic conductivity and electrochemical window to 2.11 × 10 ^-3 S cm ^-1 (30 °C) and 4.6 V. In combination of the prepared ternary P(VdF-HFP)-LiTFSI-EMITFSI ionic liquid polymer electrolytes, Li ₄Ti ₅O ₁₂ anode exhibited two extra voltage plateaus around 1.1 V and 2.3 V except the typical voltage plateau around 1.6 V by possible side reaction between ionic liquid and polymer. LiFePO ₄ cathode exhibited high capacity above 140 mA h g ^-1 and retention of 93.1% due to the suppressed polarization effect caused by enhanced ion transport properties. The high temperature of 80 °C didn't have significant impact on the cycling performance.

Original language	English
Pages (from-to)	598-606
Number of pages	9
Journal	Solid State Sciences
Volume	14
Issue number	5
DOIs	https://doi.org/10.1016/j.solidstatesciences.2012.02.005
State	Published - May 2012
Externally published	Yes

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This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

EMITFSI
Lithium ion batteries
P (VdF-HFP)
Polymer electrolyte

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10.1016/j.solidstatesciences.2012.02.005

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@article{a830e7daf96848ebbfb7effabe4892e2,

title = "Characterization and properties of ternary P(VdF-HFP)-LiTFSI-EMITFSI ionic liquid polymer electrolytes",

abstract = "Gel polymer electrolytes containing 1-ethyl-3-methylimidazolium-bis (trifluoromethyl-sulfnyl)imide (EMITFSI) ionic liquid were prepared for lithium ion batteries by solution casting method. Thermal and electrochemical properties have been determined for the gel polymer electrolytes. Proper addition of EMITFSI to the P(VdF-HFP)-LiTFSI polymer electrolyte improves the ionic conductivity and electrochemical window to 2.11 × 10 -3 S cm -1 (30 °C) and 4.6 V. In combination of the prepared ternary P(VdF-HFP)-LiTFSI-EMITFSI ionic liquid polymer electrolytes, Li 4Ti 5O 12 anode exhibited two extra voltage plateaus around 1.1 V and 2.3 V except the typical voltage plateau around 1.6 V by possible side reaction between ionic liquid and polymer. LiFePO 4 cathode exhibited high capacity above 140 mA h g -1 and retention of 93.1\% due to the suppressed polarization effect caused by enhanced ion transport properties. The high temperature of 80 °C didn't have significant impact on the cycling performance.",

keywords = "EMITFSI, Lithium ion batteries, P (VdF-HFP), Polymer electrolyte",

author = "Peixia Yang and Wenyu Cui and Libo Li and Lei Liu and Maozhong An",

year = "2012",

month = may,

doi = "10.1016/j.solidstatesciences.2012.02.005",

language = "英语",

volume = "14",

pages = "598--606",

journal = "Solid State Sciences",

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TY - JOUR

T1 - Characterization and properties of ternary P(VdF-HFP)-LiTFSI-EMITFSI ionic liquid polymer electrolytes

AU - Yang, Peixia

AU - Cui, Wenyu

AU - Li, Libo

AU - Liu, Lei

AU - An, Maozhong

PY - 2012/5

Y1 - 2012/5

N2 - Gel polymer electrolytes containing 1-ethyl-3-methylimidazolium-bis (trifluoromethyl-sulfnyl)imide (EMITFSI) ionic liquid were prepared for lithium ion batteries by solution casting method. Thermal and electrochemical properties have been determined for the gel polymer electrolytes. Proper addition of EMITFSI to the P(VdF-HFP)-LiTFSI polymer electrolyte improves the ionic conductivity and electrochemical window to 2.11 × 10 -3 S cm -1 (30 °C) and 4.6 V. In combination of the prepared ternary P(VdF-HFP)-LiTFSI-EMITFSI ionic liquid polymer electrolytes, Li 4Ti 5O 12 anode exhibited two extra voltage plateaus around 1.1 V and 2.3 V except the typical voltage plateau around 1.6 V by possible side reaction between ionic liquid and polymer. LiFePO 4 cathode exhibited high capacity above 140 mA h g -1 and retention of 93.1% due to the suppressed polarization effect caused by enhanced ion transport properties. The high temperature of 80 °C didn't have significant impact on the cycling performance.

AB - Gel polymer electrolytes containing 1-ethyl-3-methylimidazolium-bis (trifluoromethyl-sulfnyl)imide (EMITFSI) ionic liquid were prepared for lithium ion batteries by solution casting method. Thermal and electrochemical properties have been determined for the gel polymer electrolytes. Proper addition of EMITFSI to the P(VdF-HFP)-LiTFSI polymer electrolyte improves the ionic conductivity and electrochemical window to 2.11 × 10 -3 S cm -1 (30 °C) and 4.6 V. In combination of the prepared ternary P(VdF-HFP)-LiTFSI-EMITFSI ionic liquid polymer electrolytes, Li 4Ti 5O 12 anode exhibited two extra voltage plateaus around 1.1 V and 2.3 V except the typical voltage plateau around 1.6 V by possible side reaction between ionic liquid and polymer. LiFePO 4 cathode exhibited high capacity above 140 mA h g -1 and retention of 93.1% due to the suppressed polarization effect caused by enhanced ion transport properties. The high temperature of 80 °C didn't have significant impact on the cycling performance.

KW - EMITFSI

KW - Lithium ion batteries

KW - P (VdF-HFP)

KW - Polymer electrolyte

UR - https://www.scopus.com/pages/publications/84862779298

U2 - 10.1016/j.solidstatesciences.2012.02.005

DO - 10.1016/j.solidstatesciences.2012.02.005

M3 - 文章

AN - SCOPUS:84862779298

SN - 1293-2558

VL - 14

SP - 598

EP - 606

JO - Solid State Sciences

JF - Solid State Sciences

IS - 5

ER -

Characterization and properties of ternary P(VdF-HFP)-LiTFSI-EMITFSI ionic liquid polymer electrolytes

Abstract

UN SDGs

Keywords

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