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Structural lithium ion battery electrolytes via reaction induced phase-separation
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Fibre Technology.ORCID iD: 0000-0003-0618-1730
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.ORCID iD: 0000-0002-1194-9479
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.ORCID iD: 0000-0002-9744-4550
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2017 (English)In: Journal of Materials Chemistry A, ISSN 2050-7488, Vol. 5, no 48, p. 25652-25659Article in journal (Refereed) Published
Abstract [en]

For the realization of structural batteries, electrolytes where both higher ionic conductivity and stiffness are combined need to be developed. The present study describes the formation of a structural battery electrolyte (SBE) as a two phase system using reaction induced phase separation. A liquid electrolyte phase is combined with a stiff vinyl ester based thermoset matrix to form a SBE. The effect of monomer structure variations on the formed morphology and electrochemical and mechanical performance has been investigated. An ionic conductivity of 1.5 x 10(-4) S cm(-1), with a corresponding storage modulus (E') of 750 MPa, has been obtained under ambient conditions. The SBEs have been combined with carbon fibers to form a composite lamina and evaluated as a battery half-cell. Studies on the lamina revealed that both mechanical load transfer and ion transport are allowed between the carbon fibers and the electrolyte. These results pave the way for the preparation of structural batteries using carbon fibers as electrodes.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 5, no 48, p. 25652-25659
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-220591DOI: 10.1039/c7ta04684gISI: 000417953100058Scopus ID: 2-s2.0-85038213596OAI: oai:DiVA.org:kth-220591DiVA, id: diva2:1175175
Note

QC 20180117

Available from: 2018-01-17 Created: 2018-01-17 Last updated: 2018-03-12Bibliographically approved

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Ihrner, NiklasJohannisson, WilhelmZenkert, DanJohansson, Mats

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