Influence of carbonisation temperatures on multifunctional properties of carbon fibres for structural battery applications
Journal article, 2024

Carbon fibres are multifunctional materials considered for the realisation of structural battery electrodes. Processing conditions affect the carbonaceous microstructure of carbon fibres. The microstructure dictates the fibre's mechanical properties, i.e. modulus and strength, as well as its electrochemical capacity. Here, carbon fibre processing conditions are investigated to identify the effect of carbonisation temperature on carbon fibre multifunctionality. Different thermal conditions during carbonisation are considered, while keeping the precursor material, applied tension, and oxidation temperature constant. The carbonaceous microstructure of fibres is investigated via wide-angle x-ray scattering (WAXS) and transmission electron microscopy (TEM) analyses to determine the effect of the carbonisation temperature. Mechanical and electrochemical tests are performed to characterise carbon fibre multifunctionality with respect to mechanical and electrochemical performance. A moderate trade-off between mechanical and electrochemical performance is demonstrated, where the elastic modulus and strength decrease and the electrochemical capacity increase with reduced carbonisation temperature. Here, for the studied temperature interval, the elastic modulus and strength is found to drop up to 7% with a 15% increase in capacity. Thus, fibres customised for targeted multifunctionality within a limited design space can be realised by careful selection of the processing conditions in conventional carbon fibre manufacture.

Carbon fibre

Multifunctional Materials

Electrochemical Characterisation

Mechanical Characterisation



Ruben Tavano

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Johanna Xu

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Claudia Creighton

Deakin University

Fang Liu

Chalmers, Industrial and Materials Science, Materials and manufacture

Bhagya Dharmasiri

Deakin University

Luke Henderson

Deakin University

Leif Asp

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Batteries and Supercaps

25666223 (eISSN)


2D material-based technology for industrial applications (2D-TECH)

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

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

Structural battery composites for mass-less energy storage

Swedish National Space Board (2020-00256), 2021-01-01 -- 2023-12-31.

Multifunctional carbon fibres for battery electrodes

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

Driving Forces

Sustainable development

Subject Categories

Materials Engineering


Chalmers Materials Analysis Laboratory



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Latest update

7/5/2024 1