Solid polymer electrolyte-coated carbon fibres for structural and novel micro batteries
2013 (English)In: Composites Science And Technology, ISSN 0266-3538, Vol. 89, 149-157 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2013. Vol. 89, 149-157 p.
A. Functional composites, B. Electrical properties, B. Interphase, D. Photoelectron spectroscopy (XPS), D. Scanning electron microscopy (SEM), Functional composites, Methoxypolyethylene glycol, Photoelectron spectroscopy (XPS), Reversible specific capacity, Solid polymer electrolytes, Structural composites, Supporting electrolyte, Carbon fibers, Coatings, Electric properties, Lithium, Photoelectron spectroscopy, Polyelectrolytes, Polymers, Scanning electron microscopy, Thickness measurement, Fibers
IdentifiersURN: urn:nbn:se:kth:diva-139437DOI: 10.1016/j.compscitech.2013.09.026ISI: 000328715500020ScopusID: 2-s2.0-8488701403OAI: oai:DiVA.org:kth-139437DiVA: diva2:688407
FunderSwedish Foundation for Strategic Research , RMA08-0002
QC 201401162014-01-162014-01-132014-01-16Bibliographically approved