Mechanical characterisation of a structural battery electrolyte
Artikel i vetenskaplig tidskrift, 2024

Structural battery composites require a structural electrolyte to work. The structural battery electrolyte has a bicontinuous microstructure which enables its dual roles: mechanical load transfer and ion transport between the electrodes. These structural electrolytes are difficult to characterise mechanically via bulk tests. For this reason, no extensive characterisation of the mechanical properties of the structural battery electrolyte has been performed
to date. In this study, we highlight the many challenges of these types of tests, including the complexity of sample manufacturing, preparation and testing. We further demonstrate a method to prepare test samples and to perform mechanical tests on the structural battery electrolyte. The executed test campaign provides measures of Young’s modulus (approximately 412 MPa) and Poisson’s ratio (0.34), as well as tensile (4.85 MPa) and
compressive strength (32.66 MPa) and strain to failure (2.49 % and 28.11 % in tension and compression, respectively). In addition, cure shrinkage is investigated and found insignificant. These results are crucial for the further development of structural battery composites as they allow for accurate prediction of their internal stress states.

Multifunctionality

Structural battery electrolyte

Mechanical characterisation

Författare

Ruben Tavano

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Michele Spagnol

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Nawres Al-Ramanhi

Luleå tekniska universitet

Roberts Joffe

Luleå tekniska universitet

Johanna Xu

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Leif Asp

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Polymer

0032-3861 (ISSN)

Vol. 312 127646

Multifunktionella kolfibrer för strukturella batterielektroder

Office of Naval Research (N62909-22-1-2037), 2022-06-01 -- 2025-05-31.

Realising Structural Battery Composites

European Office of Aerospace Research and Development (EOARD) (FA8655-21-1-7038), 2021-08-01 -- 2024-07-31.

2D material-baserad teknologi för industriella applikationer (2D-TECH)

VINNOVA (2019-00068), 2020-05-01 -- 2024-12-31.

GKN Aerospace Sweden (2D-tech), 2021-01-01 -- 2024-12-31.

Drivkrafter

Hållbar utveckling

Innovation och entreprenörskap

Ämneskategorier

Teknisk mekanik

Infrastruktur

Chalmers materialanalyslaboratorium

Styrkeområden

Materialvetenskap

DOI

10.1016/j.polymer.2024.127646

Mer information

Senast uppdaterat

2024-10-07