Influence of additive in ionic liquid gel polymer electrolyte on electrochemical properties

Pei Xia Yang; Wen Yu Cui; Dong Jun Xing; Lei Liu; Mao Zhong An

Influence of additive in ionic liquid gel polymer electrolyte on electrochemical properties

Pei Xia Yang^*
, Wen Yu Cui
, Dong Jun Xing
, Lei Liu
, Mao Zhong An

^*Corresponding author for this work

School of Chemistry and Chemical Engineering, Harbin Institute of Technology

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

1 Scopus citations

Abstract

A composite polymer electrolyte of P(VdF-HFP)-EMIPF₆-LiPF₆ containing 1 -ethyl-3-methylimidazolium hexafluorophosphate (EMIPF₆) ionic liquid based on poly(vinylidene fluoride-co-hexafluroproptlene) [P(VdF-HFP)] polymer matrix was prepared. EMC, DMC, DEC, and EC-PC used as additive of the ionic liquid gel polymer electrolyte (ILGPE), the influence of these additive in ILGPE on electrochemical properties was also investigated. The results show that the electrochemical stability window of P(VdF-HFP)-EMIPF₆-LiPF₆ joined with EC-PC is approximately 4.6 V, Li⁺ transference number is 0.44, the ionic conductivity is 1.65 mS·cm^-1 at 30 °C. While DEC, DMC, EMC have an bad influence on the electrochemical stability of ILGPE and Li⁺ transference number and also the ionic conductivity. In combination of the prepared P(VdF-HFP)-EMIPF₆-LiPF₆+EC-PC ionic liquid gel polymer electrolytes, LiCoO₂ cathode exhibits the initial discharge capacity of 116.5 mAh · g^-1 and the capacity remain steady after 20 cycles.

Original language	English
Pages (from-to)	2143-2149
Number of pages	7
Journal	Chinese Journal of Inorganic Chemistry
Volume	27
Issue number	11
State	Published - Nov 2011
Externally published	Yes

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SDG 7 Affordable and Clean Energy

Keywords

1-ethyl-3-methylimidazolium hexafluorophosphate
Ionic liquid
Lithium-ion battery
Poly(vinylidene fluoridecohexa-fluroproptlene)
Polymer electrolyte

Cite this

@article{42bf591df06041ce99108c86bbd5cbdb,

title = "Influence of additive in ionic liquid gel polymer electrolyte on electrochemical properties",

abstract = "A composite polymer electrolyte of P(VdF-HFP)-EMIPF6-LiPF6 containing 1 -ethyl-3-methylimidazolium hexafluorophosphate (EMIPF6) ionic liquid based on poly(vinylidene fluoride-co-hexafluroproptlene) [P(VdF-HFP)] polymer matrix was prepared. EMC, DMC, DEC, and EC-PC used as additive of the ionic liquid gel polymer electrolyte (ILGPE), the influence of these additive in ILGPE on electrochemical properties was also investigated. The results show that the electrochemical stability window of P(VdF-HFP)-EMIPF6-LiPF6 joined with EC-PC is approximately 4.6 V, Li+ transference number is 0.44, the ionic conductivity is 1.65 mS·cm-1 at 30 °C. While DEC, DMC, EMC have an bad influence on the electrochemical stability of ILGPE and Li+ transference number and also the ionic conductivity. In combination of the prepared P(VdF-HFP)-EMIPF6-LiPF6+EC-PC ionic liquid gel polymer electrolytes, LiCoO2 cathode exhibits the initial discharge capacity of 116.5 mAh · g-1 and the capacity remain steady after 20 cycles.",

keywords = "1-ethyl-3-methylimidazolium hexafluorophosphate, Ionic liquid, Lithium-ion battery, Poly(vinylidene fluoridecohexa-fluroproptlene), Polymer electrolyte",

author = "Yang, \{Pei Xia\} and Cui, \{Wen Yu\} and Xing, \{Dong Jun\} and Lei Liu and An, \{Mao Zhong\}",

year = "2011",

month = nov,

language = "英语",

volume = "27",

pages = "2143--2149",

journal = "Chinese Journal of Inorganic Chemistry",

issn = "1001-4861",

publisher = "Chinese Chemical Society",

number = "11",

}

TY - JOUR

T1 - Influence of additive in ionic liquid gel polymer electrolyte on electrochemical properties

AU - Yang, Pei Xia

AU - Cui, Wen Yu

AU - Xing, Dong Jun

AU - Liu, Lei

AU - An, Mao Zhong

PY - 2011/11

Y1 - 2011/11

N2 - A composite polymer electrolyte of P(VdF-HFP)-EMIPF6-LiPF6 containing 1 -ethyl-3-methylimidazolium hexafluorophosphate (EMIPF6) ionic liquid based on poly(vinylidene fluoride-co-hexafluroproptlene) [P(VdF-HFP)] polymer matrix was prepared. EMC, DMC, DEC, and EC-PC used as additive of the ionic liquid gel polymer electrolyte (ILGPE), the influence of these additive in ILGPE on electrochemical properties was also investigated. The results show that the electrochemical stability window of P(VdF-HFP)-EMIPF6-LiPF6 joined with EC-PC is approximately 4.6 V, Li+ transference number is 0.44, the ionic conductivity is 1.65 mS·cm-1 at 30 °C. While DEC, DMC, EMC have an bad influence on the electrochemical stability of ILGPE and Li+ transference number and also the ionic conductivity. In combination of the prepared P(VdF-HFP)-EMIPF6-LiPF6+EC-PC ionic liquid gel polymer electrolytes, LiCoO2 cathode exhibits the initial discharge capacity of 116.5 mAh · g-1 and the capacity remain steady after 20 cycles.

AB - A composite polymer electrolyte of P(VdF-HFP)-EMIPF6-LiPF6 containing 1 -ethyl-3-methylimidazolium hexafluorophosphate (EMIPF6) ionic liquid based on poly(vinylidene fluoride-co-hexafluroproptlene) [P(VdF-HFP)] polymer matrix was prepared. EMC, DMC, DEC, and EC-PC used as additive of the ionic liquid gel polymer electrolyte (ILGPE), the influence of these additive in ILGPE on electrochemical properties was also investigated. The results show that the electrochemical stability window of P(VdF-HFP)-EMIPF6-LiPF6 joined with EC-PC is approximately 4.6 V, Li+ transference number is 0.44, the ionic conductivity is 1.65 mS·cm-1 at 30 °C. While DEC, DMC, EMC have an bad influence on the electrochemical stability of ILGPE and Li+ transference number and also the ionic conductivity. In combination of the prepared P(VdF-HFP)-EMIPF6-LiPF6+EC-PC ionic liquid gel polymer electrolytes, LiCoO2 cathode exhibits the initial discharge capacity of 116.5 mAh · g-1 and the capacity remain steady after 20 cycles.

KW - 1-ethyl-3-methylimidazolium hexafluorophosphate

KW - Ionic liquid

KW - Lithium-ion battery

KW - Poly(vinylidene fluoridecohexa-fluroproptlene)

KW - Polymer electrolyte

UR - https://www.scopus.com/pages/publications/80855138331

M3 - 文章

AN - SCOPUS:80855138331

SN - 1001-4861

VL - 27

SP - 2143

EP - 2149

JO - Chinese Journal of Inorganic Chemistry

JF - Chinese Journal of Inorganic Chemistry

IS - 11

ER -

Influence of additive in ionic liquid gel polymer electrolyte on electrochemical properties

Abstract

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Keywords

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