Effect of tension during stabilization on carbon fiber multifunctionality for structural battery composites
Journal article, 2023

Here we demonstrate carbon fibers with tailorable multifunctional properties for energy storage composites. Carbon fibers made from the same precursor but with different processing tensions are investigated. The applied tension during the stabilization/oxidation stage of fiber manufacturing determines the microstructure and the resulting mechanical and electrochemical performance. Understanding of the interconnected effects enables tailoring of fibers to function as electrodes in structural battery composites. The study reveals that both amorphous and crystalline phases affect the electrochemical capacity, as higher capacity is achieved by larger d-spacing as well as higher void content. Further, the study confirms the trade-off between high tensile strength and high electrochemical capacity that needs to be taken into consideration when designing multifunctional carbon fibers.

Biomimetics

Li-ion battery

Multifunctional performance

Carbon fibers

Composites

Author

Johanna Xu

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Claudia Creighton

Deakin University

Marcus Johansen

Chalmers, Industrial and Materials Science, Materials and manufacture

Fang Liu

Chalmers, Industrial and Materials Science, Materials and manufacture

Shanghong Duan

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

David Carlstedt

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Pablo Mota-Santiago

Deakin University

Peter Lynch

Deakin University

Leif Asp

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Carbon

0008-6223 (ISSN)

Vol. 209 117982

Multifunctional carbon fibres for battery electrodes

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

Realisation of structural battery composites

United States Air Force (USAF) (Award # FA8655-21-1-7038), 2021-09-01 -- 2024-08-31.

Structural battery composites for mass-less energy storage

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

Subject Categories

Materials Chemistry

Other Chemistry Topics

Composite Science and Engineering

DOI

10.1016/j.carbon.2023.03.057

More information

Latest update

5/3/2023 7