Preparation and characteristics of novel hyperbranched peu-based gel polymer electrolytes

Chuan Wu; Feng Wu; Ying Bai; Ting Feng; Chunhua Pan; Lin Ye; Zengguo Feng

doi:10.4067/S0717-97072009000300020

Preparation and characteristics of novel hyperbranched peu-based gel polymer electrolytes

Chuan Wu^*, Feng Wu, Ying Bai, Ting Feng, Chunhua Pan, Lin Ye, Zengguo Feng

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

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

10 Citations (Scopus)

Abstract

Gel polymer electrolytes (GPEs) based on hyperbranched poly (ether urethane) (PHEU) were prepared from the reaction of the hyperbranched polyether (PHEMO) with different diisocyanates in liquid electrolyte. The ionic conductivities and transference number of the GPEs were investigated by alternating current (AC) impedance and multi-potential steps. It is found that the ionic conductivities of GPEs were influenced by diisocyanate structure, lithium salt concentration and addition amount of liquid electrolyte. Sample PUM-0.5M-80% originated from 4, 4-diphenylmethane diisocyanate (MDI) as the hard segment shows the highest ionic conductivity of 2.41×10^-3 S•cm^-1 at ambient temperature. The lithium ion transference number is 0.7. In addition, small molecules of liquid electrolyte were perfectly entrapped by polymer matrix, and liquid leakage in lithium ion battery was avoided.

Original language	English
Pages (from-to)	299-301
Number of pages	3
Journal	Journal of the Chilean Chemical Society
Volume	54
Issue number	3
DOIs	https://doi.org/10.4067/S0717-97072009000300020
Publication status	Published - 2009

Keywords

GPE
Hyperbranched PEU
Ionic conductivity
Lithium ion battery

UN SDGs

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

Access to Document

10.4067/S0717-97072009000300020

Cite this

@article{efdc581b435a4938906f85cd4febb1fa,

title = "Preparation and characteristics of novel hyperbranched peu-based gel polymer electrolytes",

abstract = "Gel polymer electrolytes (GPEs) based on hyperbranched poly (ether urethane) (PHEU) were prepared from the reaction of the hyperbranched polyether (PHEMO) with different diisocyanates in liquid electrolyte. The ionic conductivities and transference number of the GPEs were investigated by alternating current (AC) impedance and multi-potential steps. It is found that the ionic conductivities of GPEs were influenced by diisocyanate structure, lithium salt concentration and addition amount of liquid electrolyte. Sample PUM-0.5M-80% originated from 4, 4-diphenylmethane diisocyanate (MDI) as the hard segment shows the highest ionic conductivity of 2.41×10-3 S•cm-1 at ambient temperature. The lithium ion transference number is 0.7. In addition, small molecules of liquid electrolyte were perfectly entrapped by polymer matrix, and liquid leakage in lithium ion battery was avoided.",

keywords = "GPE, Hyperbranched PEU, Ionic conductivity, Lithium ion battery",

author = "Chuan Wu and Feng Wu and Ying Bai and Ting Feng and Chunhua Pan and Lin Ye and Zengguo Feng",

year = "2009",

doi = "10.4067/S0717-97072009000300020",

language = "English",

volume = "54",

pages = "299--301",

journal = "Journal of the Chilean Chemical Society",

issn = "0717-9324",

publisher = "Sociedad Chilena De Quimica",

number = "3",

}

TY - JOUR

T1 - Preparation and characteristics of novel hyperbranched peu-based gel polymer electrolytes

AU - Wu, Chuan

AU - Wu, Feng

AU - Bai, Ying

AU - Feng, Ting

AU - Pan, Chunhua

AU - Ye, Lin

AU - Feng, Zengguo

PY - 2009

Y1 - 2009

N2 - Gel polymer electrolytes (GPEs) based on hyperbranched poly (ether urethane) (PHEU) were prepared from the reaction of the hyperbranched polyether (PHEMO) with different diisocyanates in liquid electrolyte. The ionic conductivities and transference number of the GPEs were investigated by alternating current (AC) impedance and multi-potential steps. It is found that the ionic conductivities of GPEs were influenced by diisocyanate structure, lithium salt concentration and addition amount of liquid electrolyte. Sample PUM-0.5M-80% originated from 4, 4-diphenylmethane diisocyanate (MDI) as the hard segment shows the highest ionic conductivity of 2.41×10-3 S•cm-1 at ambient temperature. The lithium ion transference number is 0.7. In addition, small molecules of liquid electrolyte were perfectly entrapped by polymer matrix, and liquid leakage in lithium ion battery was avoided.

AB - Gel polymer electrolytes (GPEs) based on hyperbranched poly (ether urethane) (PHEU) were prepared from the reaction of the hyperbranched polyether (PHEMO) with different diisocyanates in liquid electrolyte. The ionic conductivities and transference number of the GPEs were investigated by alternating current (AC) impedance and multi-potential steps. It is found that the ionic conductivities of GPEs were influenced by diisocyanate structure, lithium salt concentration and addition amount of liquid electrolyte. Sample PUM-0.5M-80% originated from 4, 4-diphenylmethane diisocyanate (MDI) as the hard segment shows the highest ionic conductivity of 2.41×10-3 S•cm-1 at ambient temperature. The lithium ion transference number is 0.7. In addition, small molecules of liquid electrolyte were perfectly entrapped by polymer matrix, and liquid leakage in lithium ion battery was avoided.

KW - GPE

KW - Hyperbranched PEU

KW - Ionic conductivity

KW - Lithium ion battery

UR - http://www.scopus.com/inward/record.url?scp=77950666508&partnerID=8YFLogxK

U2 - 10.4067/S0717-97072009000300020

DO - 10.4067/S0717-97072009000300020

M3 - Article

AN - SCOPUS:77950666508

SN - 0717-9324

VL - 54

SP - 299

EP - 301

JO - Journal of the Chilean Chemical Society

JF - Journal of the Chilean Chemical Society

IS - 3

ER -

Preparation and characteristics of novel hyperbranched peu-based gel polymer electrolytes

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this