Characterization of the adhesive properties between structural battery electrolytes and carbon fibers
Artikel i vetenskaplig tidskrift, 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.

interfacial strength

scanning electron microscopy (SEM)

carbon fibres

functional composites

Författare

Johanna Xu

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Wilhelm Johannisson

Kungliga Tekniska Högskolan (KTH)

Marcus Johansen

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Fang Liu

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Dan Zenkert

Kungliga Tekniska Högskolan (KTH)

Göran Lindbergh

Kungliga Tekniska Högskolan (KTH)

Leif Asp

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Composites Science and Technology

0266-3538 (ISSN)

Vol. 188 107962

Skadetålighet hos strukturella batterier

Amerikanska flygvapnets kontor för strategisk forskning (AFOSR), 2017-09-30 -- 2020-09-29.

SORCERER

Europeiska kommissionen (EU), 2017-02-01 -- 2020-02-28.

Drivkrafter

Hållbar utveckling

Innovation och entreprenörskap

Styrkeområden

Transport

Energi

Materialvetenskap

Ämneskategorier

Polymerteknologi

Farkostteknik

Infrastruktur

Chalmers materialanalyslaboratorium

DOI

10.1016/j.compscitech.2019.107962

Mer information

Senast uppdaterat

2020-11-19