Novel polysilsesquioxane hybrid polymer electrolytes for lithium ion batteries

Albert Sung Soo Lee, Jin Hong Lee, Jong Chan Lee, Soon Man Hong, Seung Sang Hwang, Chong Min Koo

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

A novel inorganic-organic hybrid crosslinker was prepared through synthesis of a fully condensed, high molecular weight ladder-like poly(methacryloxypropyl)silsesquioxane (LPMASQ) in one pot with a facile, base-catalysed system. The fully condensed LPMASQ revealed good thermal (∼380 °C) and electrochemical stability (∼5.0 V) due to the absence of uncondensed silanol groups. LPMASQ also revealed good solubility in various organic solvents and fully gelated 1 M LiPF6 in ethyl carbonate-diethyl carbonate (EC-DEC, 3/7, v/v) electrolyte solution through fast thermal and photocuring even at a very low concentration of 2 wt%. These observations were attributed to the polymeric nature of LPMASQ containing over one hundred methacryl moieties on the rigid double-stranded siloxane backbone. To the best of our knowledge, formation of a gel polymer electrolyte with 2 wt% gelator is the smallest gelation concentration that has ever been reported. This leads to high ionic conductivity (∼6.0 mS cm-1), excellent Coulombic efficiency and battery cell performance, comparable with those of the neat liquid electrolyte. The small crosslinker content, thermal and electrochemical stability, fast thermal and photocuring and facile processing of the LPMASQ based GPEs, as well as excellent Li battery cell performances strongly hold great promise for future industrial battery applications.

Original languageEnglish
Pages (from-to)1277-1283
Number of pages7
JournalJournal of Materials Chemistry A
Volume2
Issue number5
DOIs
Publication statusPublished - 2014 Feb 7
Externally publishedYes

Fingerprint

Electrolytes
Polymers
Carbonates
Siloxanes
Ladders
Gelation
Ionic conductivity
Organic solvents
Gels
Solubility
Molecular weight
Lithium-ion batteries
polysilsesquioxane
Hot Temperature
Liquids
Processing
ethyl carbonate

ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Novel polysilsesquioxane hybrid polymer electrolytes for lithium ion batteries. / Soo Lee, Albert Sung; Lee, Jin Hong; Lee, Jong Chan; Hong, Soon Man; Hwang, Seung Sang; Koo, Chong Min.

In: Journal of Materials Chemistry A, Vol. 2, No. 5, 07.02.2014, p. 1277-1283.

Research output: Contribution to journalArticle

Soo Lee, Albert Sung ; Lee, Jin Hong ; Lee, Jong Chan ; Hong, Soon Man ; Hwang, Seung Sang ; Koo, Chong Min. / Novel polysilsesquioxane hybrid polymer electrolytes for lithium ion batteries. In: Journal of Materials Chemistry A. 2014 ; Vol. 2, No. 5. pp. 1277-1283.
@article{d0f3b6f80d3242168c1996507541b577,
title = "Novel polysilsesquioxane hybrid polymer electrolytes for lithium ion batteries",
abstract = "A novel inorganic-organic hybrid crosslinker was prepared through synthesis of a fully condensed, high molecular weight ladder-like poly(methacryloxypropyl)silsesquioxane (LPMASQ) in one pot with a facile, base-catalysed system. The fully condensed LPMASQ revealed good thermal (∼380 °C) and electrochemical stability (∼5.0 V) due to the absence of uncondensed silanol groups. LPMASQ also revealed good solubility in various organic solvents and fully gelated 1 M LiPF6 in ethyl carbonate-diethyl carbonate (EC-DEC, 3/7, v/v) electrolyte solution through fast thermal and photocuring even at a very low concentration of 2 wt{\%}. These observations were attributed to the polymeric nature of LPMASQ containing over one hundred methacryl moieties on the rigid double-stranded siloxane backbone. To the best of our knowledge, formation of a gel polymer electrolyte with 2 wt{\%} gelator is the smallest gelation concentration that has ever been reported. This leads to high ionic conductivity (∼6.0 mS cm-1), excellent Coulombic efficiency and battery cell performance, comparable with those of the neat liquid electrolyte. The small crosslinker content, thermal and electrochemical stability, fast thermal and photocuring and facile processing of the LPMASQ based GPEs, as well as excellent Li battery cell performances strongly hold great promise for future industrial battery applications.",
author = "{Soo Lee}, {Albert Sung} and Lee, {Jin Hong} and Lee, {Jong Chan} and Hong, {Soon Man} and Hwang, {Seung Sang} and Koo, {Chong Min}",
year = "2014",
month = "2",
day = "7",
doi = "10.1039/c3ta14290f",
language = "English",
volume = "2",
pages = "1277--1283",
journal = "Journal of Materials Chemistry A",
issn = "2050-7488",
publisher = "Royal Society of Chemistry",
number = "5",

}

TY - JOUR

T1 - Novel polysilsesquioxane hybrid polymer electrolytes for lithium ion batteries

AU - Soo Lee, Albert Sung

AU - Lee, Jin Hong

AU - Lee, Jong Chan

AU - Hong, Soon Man

AU - Hwang, Seung Sang

AU - Koo, Chong Min

PY - 2014/2/7

Y1 - 2014/2/7

N2 - A novel inorganic-organic hybrid crosslinker was prepared through synthesis of a fully condensed, high molecular weight ladder-like poly(methacryloxypropyl)silsesquioxane (LPMASQ) in one pot with a facile, base-catalysed system. The fully condensed LPMASQ revealed good thermal (∼380 °C) and electrochemical stability (∼5.0 V) due to the absence of uncondensed silanol groups. LPMASQ also revealed good solubility in various organic solvents and fully gelated 1 M LiPF6 in ethyl carbonate-diethyl carbonate (EC-DEC, 3/7, v/v) electrolyte solution through fast thermal and photocuring even at a very low concentration of 2 wt%. These observations were attributed to the polymeric nature of LPMASQ containing over one hundred methacryl moieties on the rigid double-stranded siloxane backbone. To the best of our knowledge, formation of a gel polymer electrolyte with 2 wt% gelator is the smallest gelation concentration that has ever been reported. This leads to high ionic conductivity (∼6.0 mS cm-1), excellent Coulombic efficiency and battery cell performance, comparable with those of the neat liquid electrolyte. The small crosslinker content, thermal and electrochemical stability, fast thermal and photocuring and facile processing of the LPMASQ based GPEs, as well as excellent Li battery cell performances strongly hold great promise for future industrial battery applications.

AB - A novel inorganic-organic hybrid crosslinker was prepared through synthesis of a fully condensed, high molecular weight ladder-like poly(methacryloxypropyl)silsesquioxane (LPMASQ) in one pot with a facile, base-catalysed system. The fully condensed LPMASQ revealed good thermal (∼380 °C) and electrochemical stability (∼5.0 V) due to the absence of uncondensed silanol groups. LPMASQ also revealed good solubility in various organic solvents and fully gelated 1 M LiPF6 in ethyl carbonate-diethyl carbonate (EC-DEC, 3/7, v/v) electrolyte solution through fast thermal and photocuring even at a very low concentration of 2 wt%. These observations were attributed to the polymeric nature of LPMASQ containing over one hundred methacryl moieties on the rigid double-stranded siloxane backbone. To the best of our knowledge, formation of a gel polymer electrolyte with 2 wt% gelator is the smallest gelation concentration that has ever been reported. This leads to high ionic conductivity (∼6.0 mS cm-1), excellent Coulombic efficiency and battery cell performance, comparable with those of the neat liquid electrolyte. The small crosslinker content, thermal and electrochemical stability, fast thermal and photocuring and facile processing of the LPMASQ based GPEs, as well as excellent Li battery cell performances strongly hold great promise for future industrial battery applications.

UR - http://www.scopus.com/inward/record.url?scp=84891402101&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84891402101&partnerID=8YFLogxK

U2 - 10.1039/c3ta14290f

DO - 10.1039/c3ta14290f

M3 - Article

VL - 2

SP - 1277

EP - 1283

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

SN - 2050-7488

IS - 5

ER -