Characterization of the adhesive properties between structural battery electrolytes and carbon fibers
Journal article, 2020
Structural batteries can simultaneously store electrical energy and carry mechanical load, being similar to both laminated carbon fiber composites and lithium ion batteries. The matrix in a structural battery must both conduct ions and transfer load between the fibers, made possible with a phase-separated combination of a solid polymer and a liquid electrolyte. This leads to a trade-off between the polymer contact creating adhesion and liquid contact creating ionic conductivity. Here we investigate the fiber-matrix adhesion between carbon fibres with different sizing and two different matrix systems, using microbond testing supported by transverse tensile tests. The results show that the mechanical adhesion of the fiber-matrix interface is lower than that of a commercial non-ion conducting polymer matrix but sufficient for structural battery applications.
functional composites
fibre/matrix bond
scanning electron microscopy (SEM)
interfacial strength
carbon fibres
Author
Johanna Xu
Luleå University of Technology
Chalmers, Industrial and Materials Science, Material and Computational Mechanics
Wilhelm Johannisson
Royal Institute of Technology (KTH)
Marcus Johansen
Chalmers, Industrial and Materials Science, Materials and manufacture
Fang Liu
Chalmers, Industrial and Materials Science, Materials and manufacture
Dan Zenkert
Royal Institute of Technology (KTH)
Göran Lindbergh
Royal Institute of Technology (KTH)
Leif Asp
Chalmers, Industrial and Materials Science, Material and Computational Mechanics
Composites Science and Technology
0266-3538 (ISSN)
Vol. 188 107962Structural pOweR CompositEs foR futurE civil aiRcraft (SORCERER)
European Commission (EC) (EC/H2020/738085), 2017-02-01 -- 2020-02-28.
Damage Tolerance and Durability of Structural Power Composites
US Air Force Office of Strategic Research (AFOSR) (FA9550-17-1-0338), 2017-09-30 -- 2020-09-29.
Driving Forces
Sustainable development
Innovation and entrepreneurship
Areas of Advance
Transport
Production
Energy
Materials Science
Subject Categories (SSIF 2011)
Polymer Technologies
Vehicle Engineering
Infrastructure
Chalmers Materials Analysis Laboratory
DOI
10.1016/j.compscitech.2019.107962