Lithium ion capacitors fabricated with polyethylene oxide-functionalized polysilsesquioxane hybrid ionogel electrolytes

Wonjun Na; Albert S. Lee; Jin Hong Lee; Seung Sang Hwang; Soon Man Hong; Eunkyoung Kim; Chong Min Koo

doi:10.1016/j.electacta.2015.12.017

Lithium ion capacitors fabricated with polyethylene oxide-functionalized polysilsesquioxane hybrid ionogel electrolytes

Wonjun Na, Albert S. Lee, Jin Hong Lee, Seung Sang Hwang, Soon Man Hong, Eunkyoung Kim, Chong Min Koo

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

25 Citations (Scopus)

Abstract

We present a new polyethylene glycol-functionalized polysilsesquioxane, a ladder-like structured poly(poly(ethylene oxide)-co-methacryloxypropyl)silsesquioxane) (PEO-SQ) hybrid-type polymer gelator to fabricate hybrid ionogel electrolytes for lithium ion capacitors. The organic-inorganic hybrid polymer gelator contains not only an inorganic ladder-like polysilsesquioxane backbone for the thermal and electrochemical stability, but also dual organic pendant groups consisting of free-dangling PEO chains and unsaturated methacryloxypropyl groups for enhanced lithium ion dissociation and thermal curing function, respectively. The successful crosslinking of 1 M LiTFSI in N-butyl-N-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (BMPTFSI) ionic liquid with only a small amount of PEO-SQ hybrid crosslinker (5 wt%) gave non-leaking ionogels with high thermal stability (∼400°C), large ionic conductivities, and excellent lithium ion capacitor C-rate performance and cyclability, comparable to those of neat ionic liquid electrolyte and superior over conventional organic ionogels fabricated with organic crosslinkers without PEO-moeities.

Original language	English
Pages (from-to)	582-588
Number of pages	7
Journal	Electrochimica Acta
Volume	188
DOIs	https://doi.org/10.1016/j.electacta.2015.12.017
Publication status	Published - 2016 Jan 10
Externally published	Yes

Keywords

Lithium ion capacitor
electrolyte
ionogel
polysilsesquioxane

ASJC Scopus subject areas

Chemical Engineering(all)
Electrochemistry

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@article{93bec6c109984a379dee72795e20c28e,

title = "Lithium ion capacitors fabricated with polyethylene oxide-functionalized polysilsesquioxane hybrid ionogel electrolytes",

abstract = "We present a new polyethylene glycol-functionalized polysilsesquioxane, a ladder-like structured poly(poly(ethylene oxide)-co-methacryloxypropyl)silsesquioxane) (PEO-SQ) hybrid-type polymer gelator to fabricate hybrid ionogel electrolytes for lithium ion capacitors. The organic-inorganic hybrid polymer gelator contains not only an inorganic ladder-like polysilsesquioxane backbone for the thermal and electrochemical stability, but also dual organic pendant groups consisting of free-dangling PEO chains and unsaturated methacryloxypropyl groups for enhanced lithium ion dissociation and thermal curing function, respectively. The successful crosslinking of 1 M LiTFSI in N-butyl-N-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (BMPTFSI) ionic liquid with only a small amount of PEO-SQ hybrid crosslinker (5 wt%) gave non-leaking ionogels with high thermal stability (∼400°C), large ionic conductivities, and excellent lithium ion capacitor C-rate performance and cyclability, comparable to those of neat ionic liquid electrolyte and superior over conventional organic ionogels fabricated with organic crosslinkers without PEO-moeities.",

keywords = "Lithium ion capacitor, electrolyte, ionogel, polysilsesquioxane",

author = "Wonjun Na and Lee, {Albert S.} and Lee, {Jin Hong} and Hwang, {Seung Sang} and Hong, {Soon Man} and Eunkyoung Kim and Koo, {Chong Min}",

note = "Funding Information: This work was financially supported by a grant from the Fundamental R&D Program for Core Technology of Materials and the Industrial Strategic Technology Development Program funded by the Ministry of Knowledge Economy, Republic of Korea, and partially by a grant from Materials Architecturing Research Center of Korea Institute of Science and Technology (KIST). Publisher Copyright: {\textcopyright} 2015 Published by Elsevier Ltd. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",

year = "2016",

month = jan,

day = "10",

doi = "10.1016/j.electacta.2015.12.017",

language = "English",

volume = "188",

pages = "582--588",

journal = "Electrochimica Acta",

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TY - JOUR

T1 - Lithium ion capacitors fabricated with polyethylene oxide-functionalized polysilsesquioxane hybrid ionogel electrolytes

AU - Na, Wonjun

AU - Lee, Albert S.

AU - Lee, Jin Hong

AU - Hwang, Seung Sang

AU - Hong, Soon Man

AU - Kim, Eunkyoung

AU - Koo, Chong Min

N1 - Funding Information: This work was financially supported by a grant from the Fundamental R&D Program for Core Technology of Materials and the Industrial Strategic Technology Development Program funded by the Ministry of Knowledge Economy, Republic of Korea, and partially by a grant from Materials Architecturing Research Center of Korea Institute of Science and Technology (KIST). Publisher Copyright: © 2015 Published by Elsevier Ltd. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 2016/1/10

Y1 - 2016/1/10

N2 - We present a new polyethylene glycol-functionalized polysilsesquioxane, a ladder-like structured poly(poly(ethylene oxide)-co-methacryloxypropyl)silsesquioxane) (PEO-SQ) hybrid-type polymer gelator to fabricate hybrid ionogel electrolytes for lithium ion capacitors. The organic-inorganic hybrid polymer gelator contains not only an inorganic ladder-like polysilsesquioxane backbone for the thermal and electrochemical stability, but also dual organic pendant groups consisting of free-dangling PEO chains and unsaturated methacryloxypropyl groups for enhanced lithium ion dissociation and thermal curing function, respectively. The successful crosslinking of 1 M LiTFSI in N-butyl-N-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (BMPTFSI) ionic liquid with only a small amount of PEO-SQ hybrid crosslinker (5 wt%) gave non-leaking ionogels with high thermal stability (∼400°C), large ionic conductivities, and excellent lithium ion capacitor C-rate performance and cyclability, comparable to those of neat ionic liquid electrolyte and superior over conventional organic ionogels fabricated with organic crosslinkers without PEO-moeities.

AB - We present a new polyethylene glycol-functionalized polysilsesquioxane, a ladder-like structured poly(poly(ethylene oxide)-co-methacryloxypropyl)silsesquioxane) (PEO-SQ) hybrid-type polymer gelator to fabricate hybrid ionogel electrolytes for lithium ion capacitors. The organic-inorganic hybrid polymer gelator contains not only an inorganic ladder-like polysilsesquioxane backbone for the thermal and electrochemical stability, but also dual organic pendant groups consisting of free-dangling PEO chains and unsaturated methacryloxypropyl groups for enhanced lithium ion dissociation and thermal curing function, respectively. The successful crosslinking of 1 M LiTFSI in N-butyl-N-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (BMPTFSI) ionic liquid with only a small amount of PEO-SQ hybrid crosslinker (5 wt%) gave non-leaking ionogels with high thermal stability (∼400°C), large ionic conductivities, and excellent lithium ion capacitor C-rate performance and cyclability, comparable to those of neat ionic liquid electrolyte and superior over conventional organic ionogels fabricated with organic crosslinkers without PEO-moeities.

KW - Lithium ion capacitor

KW - electrolyte

KW - ionogel

KW - polysilsesquioxane

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VL - 188

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EP - 588

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

ER -

Lithium ion capacitors fabricated with polyethylene oxide-functionalized polysilsesquioxane hybrid ionogel electrolytes

Abstract

Keywords

ASJC Scopus subject areas

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