Polyethylene Oxide (PEO) Provides Bridges to Silica Nanoparticles to Form a Shear Thickening Electrolyte for High Performance Impact Resistant Lithium‐ion Batteries

Zhiqi Chen; Yunfeng Chao; Sepidar Sayyar; Tongfei Tian; Kezhong Wang; Yeqing Xu; Gordon Wallace; Jie Ding; Caiyun Wang

doi:10.1002/advs.202302844

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Polyethylene Oxide (PEO) Provides Bridges to Silica Nanoparticles to Form a Shear Thickening Electrolyte for High Performance Impact Resistant Lithium‐ion Batteries

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Polyethylene Oxide (PEO) Provides Bridges to Silica Nanoparticles to Form a Shear Thickening Electrolyte for High Performance Impact Resistant Lithium‐ion Batteries

Zhiqi Chen, Yunfeng Chao, Sepidar Sayyar, Tongfei Tian, Kezhong Wang, Yeqing Xu, Gordon Wallace, Jie Ding and Caiyun Wang

Advanced Science, Vol.10(28), pp.1-8

2023

DOI: https://doi.org/10.1002/advs.202302844

PMCID: PMC10558684

PMID: 37544891

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Abstract

impact tolerance

lithium-ion batteries

polymer bridging

safety

shear thickening electrolytes

The development of shear thickening electrolytes is proving to be pivotal in the quest for impact resistant lithium-ion batteries (LIBs). However, the high viscosity and poor stability associated with the need for high filler content has to date impeded progress. Here, this work reports a new type of polymer-bridged shear thickening electrolyte that overcomes these shortcomings, by utilizing the interaction between polymer chains and silica nanoparticles. The incorporation of polyethylene oxide (PEO) facilitates hydrocluster formation providing impact resistance with a filler content as low as 2.2 wt%. This low viscosity electrolyte has a high ionic conductivity of ≈5.1 mS cm−1 with excellent long-term stability, over 30 days. The effectiveness of this electrolyte in LIBs is demonstrated by excellent electrochemical performance and high impact resistance.

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Title: Polyethylene Oxide (PEO) Provides Bridges to Silica Nanoparticles to Form a Shear Thickening Electrolyte for High Performance Impact Resistant Lithium‐ion Batteries
Authors: Zhiqi Chen (Author) - University of Wollongong
Yunfeng Chao (Author) - University of Wollongong
Sepidar Sayyar (Author) - University of Wollongong
Tongfei Tian (Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
Kezhong Wang (Author) - University of Wollongong
Yeqing Xu (Author) - University of Wollongong
Gordon Wallace (Author) - University of Wollongong
Jie Ding (Corresponding Author) - Defence Science and Technology Group
Caiyun Wang (Corresponding Author) - ARC Centre of Excellence for Electromaterials Science Intelligent Polymer Research Institute AIIM Facility Innovation Campus University of Wollongong Wollongong NSW 2500 Australia
Publication details: Advanced Science, Vol.10(28), pp.1-8
Publisher: Wiley-VCH Verlag GmbH & Co. KGaA
Date published: 2023
DOI: 10.1002/advs.202302844
ISSN: 2198-3844
PMID: 37544891; PMC10558684
Copyright note: © 2023 The Authors. Advanced Science published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Grant note: CE140100012 / Australian Research Council Centre of Excellence Scheme Defence Science and Technology Group (DSTG), Australia
Organisation Unit: University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99744998302621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Chemistry, Multidisciplinary; Materials Science, Multidisciplinary; Nanoscience & Nanotechnology