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.

scanning electron microscopy (SEM)

functional composites

interfacial strength

fibre/matrix bond

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 107962

Structural pOweR CompositEs foR futurE civil aiRcraft (SORCERER)

European Commission (EC) (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

Energy

Materials Science

Subject Categories

Polymer Technologies

Vehicle Engineering

Infrastructure

Chalmers Materials Analysis Laboratory

DOI

10.1016/j.compscitech.2019.107962

More information

Latest update

7/1/2021 1