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Solid polymer electrolyte-coated carbon fibres for structural and novel micro batteries
KTH Royal Institute of Technology.
RISE, Swerea, Swerea SICOMP.
KTH Royal Institute of Technology.
RISE, Swerea, Swerea SICOMP.
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2013 (English)In: Composites Science And Technology, ISSN 0266-3538, E-ISSN 1879-1050, Vol. 89, 149-157 p.Article in journal (Refereed)
Abstract [en]

We report a method to deposit a thin solid polymer electrolyte (SPE) coating around individual carbon fibres for the realization of novel battery designs. In this study an electrocoating method is used to coat methacrylate-based solid polymer electrolytes onto carbon fibres. By this approach a dense uniform, apparently pinhole-free, poly(methoxy polyethylene glycol (350) monomethacrylate) coating with an average coating thickness of 470. nm was deposited around carbon fibres. Li-triflate, used as supporting electrolyte remained in the coating after the electrocoating operation. The Li-ion content in the solid polymer coating was found to be sufficiently high for battery applications. A battery device was built employing the SPE coated carbon fibres as negative electrode demonstrating reversible specific capacity of 260. mA. h/g at low currents (C/10), suggesting that these coated carbon fibres can be employed in future structural composite batteries. © 2013 Elsevier Ltd.

Place, publisher, year, edition, pages
2013. Vol. 89, 149-157 p.
Keyword [en]
A. Functional composites, B. Electrical properties, B. Interphase, D. Photoelectron spectroscopy (XPS), D. Scanning electron microscopy (SEM)
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-13156DOI: 10.1016/j.compscitech.2013.09.026OAI: oai:DiVA.org:ri-13156DiVA: diva2:973352
Available from: 2016-09-22 Created: 2016-09-22Bibliographically approved

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