Controlling the Supramolecular Architecture Enables High Lithium Cationic Conductivity and High Electrochemical Stability for Solid Polymer Electrolytes

Xie, K; Fu, Q; Chen, F; Zhu, H; Wang, X; Huang, G; Zhan, H; Liang, Q; Doherty, CM; Wang, D; Qiao, GG; Li, D

Controlling the Supramolecular Architecture Enables High Lithium Cationic Conductivity and High Electrochemical Stability for Solid Polymer Electrolytes

Xie, K Fu, Q

Chen, F Zhu, H Wang, X Huang, G Zhan, H Liang, Q Doherty, CM Wang, D Qiao, GG Li, D

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Publisher:: WILEY-V C H VERLAG GMBH
Publication Type:: Journal Article
Citation:: Advanced Functional Materials, 2024
Issue Date:: 2024-01-01

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Field	Value	Language
dc.contributor.author	Xie, K
dc.contributor.author	Fu, Q https://orcid.org/0000-0002-4012-330X
dc.contributor.author	Chen, F
dc.contributor.author	Zhu, H
dc.contributor.author	Wang, X
dc.contributor.author	Huang, G
dc.contributor.author	Zhan, H
dc.contributor.author	Liang, Q
dc.contributor.author	Doherty, CM
dc.contributor.author	Wang, D
dc.contributor.author	Qiao, GG
dc.contributor.author	Li, D
dc.date.accessioned	2024-03-12T07:56:01Z
dc.date.available	2024-03-12T07:56:01Z
dc.date.issued	2024-01-01
dc.identifier.citation	Advanced Functional Materials, 2024
dc.identifier.issn	1616-301X
dc.identifier.issn	1616-3028
dc.identifier.uri	http://hdl.handle.net/10453/176586
dc.description.abstract	Solid polymer electrolytes (SPEs) are long sought after for versatile applications due to their low cost, light weight, flexibility, ease of scale-up, and low interfacial impedance. However, obtaining SPEs with high Li+ conductivity (σ+) and high voltage stability to avoid concentrated polarization and premature capacity loss has proven challenging. Here a stretchable dry-SPE is reported with a semi-interpenetrating, supermolecular architecture consisting of a cross-linked polyethylene oxide (PEO) tetra-network and an alternating copolymer poly(ethylene oxide-alt-butylene terephthalate). Such a unique supermolecular architecture suppresses the formation of Li+/PEO intermolecular complex and enhances the oxidation stability of PEO-based electrolyte, thus maintaining high chain segmental motion even with high salt loading (up to 50 wt%) and achieving a wide electrochemical stability window of 5.3 V. These merits enable the simultaneous accomplishment of high ionic conductivity and high Li+ transference number (t+) to enhance the energy efficiency of energy storage device, and electrochemical stability.
dc.language	English
dc.publisher	WILEY-V C H VERLAG GMBH
dc.relation	http://purl.org/au-research/grants/arc/FT180100312
dc.relation.ispartof	Advanced Functional Materials
dc.relation.isbasedon	10.1002/adfm.202315495
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	02 Physical Sciences, 03 Chemical Sciences, 09 Engineering
dc.subject.classification	Materials
dc.subject.classification	34 Chemical sciences
dc.subject.classification	40 Engineering
dc.subject.classification	51 Physical sciences
dc.title	Controlling the Supramolecular Architecture Enables High Lithium Cationic Conductivity and High Electrochemical Stability for Solid Polymer Electrolytes
dc.type	Journal Article
utslib.for	02 Physical Sciences
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access	*
dc.date.updated	2024-03-12T07:56:00Z
pubs.publication-status	Published

Abstract:

Solid polymer electrolytes (SPEs) are long sought after for versatile applications due to their low cost, light weight, flexibility, ease of scale-up, and low interfacial impedance. However, obtaining SPEs with high Li+ conductivity (σ+) and high voltage stability to avoid concentrated polarization and premature capacity loss has proven challenging. Here a stretchable dry-SPE is reported with a semi-interpenetrating, supermolecular architecture consisting of a cross-linked polyethylene oxide (PEO) tetra-network and an alternating copolymer poly(ethylene oxide-alt-butylene terephthalate). Such a unique supermolecular architecture suppresses the formation of Li+/PEO intermolecular complex and enhances the oxidation stability of PEO-based electrolyte, thus maintaining high chain segmental motion even with high salt loading (up to 50 wt%) and achieving a wide electrochemical stability window of 5.3 V. These merits enable the simultaneous accomplishment of high ionic conductivity and high Li+ transference number (t+) to enhance the energy efficiency of energy storage device, and electrochemical stability.

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http://hdl.handle.net/10453/176586