Effect of lithiation on the elastic moduli of carbon fibres
Journal article, 2021
Carbon fibre electrodes can enable a solid-state battery to carry mechanical load as normal construction materials. The multifunctionality is promising for most lightweight applications. Like all electrode materials, both volume and elastic moduli of the carbon fibre electrodes change during battery cycling. Such changes jeopardize the mechanical integrity of the battery. Due to the challenging corrosion problem of the lithiated component in air, the effect of lithiation on the carbon fibre's elastic moduli has yet to be explored. Also, robust data on the expansion of carbon fibres from lithiation are lacking. In the present work, we demonstrate a method and perform tests of corrosion protected carbon fibres in scanning electron microscope. The volume, and longitudinal and transverse moduli of a carbon fibre at three states of lithiation are determined and compared. The transverse modulus of the lithiated fibre is found to be more than double that of the pristine and delithiated fibres.
Elastic modulus
Volume expansion
Lithium-ion battery
Carbon fiber electrode
Structural battery
Author
Shanghong Duan
Chalmers, Industrial and Materials Science, Material and Computational Mechanics
Anand Harihara Subramonia Iyer
Chalmers, Physics, Microstructure Physics
David Carlstedt
Chalmers, Industrial and Materials Science, Material and Computational Mechanics
Florian Rittweger
Hamburg University of Applied Sciences
Andrew Sharits
Air Force Research Laboratory
UES Inc.
Calvin Maddox
Air Force Research Laboratory
UES Inc.
Karl-Ragmar Riemschneider
Hamburg University of Applied Sciences
David Mollenhauer
Air Force Research Laboratory
Magnus Hörnqvist Colliander
Chalmers, Physics, Microstructure Physics
Fang Liu
Chalmers, Industrial and Materials Science, Materials and manufacture
Leif Asp
Chalmers, Industrial and Materials Science, Material and Computational Mechanics
Carbon
0008-6223 (ISSN)
Vol. 185 234-241Structural pOweR CompositEs foR futurE civil aiRcraft (SORCERER)
European Commission (EC) (EC/H2020/738085), 2017-02-01 -- 2020-02-28.
Realisation of structural battery composites
United States Air Force (USAF) (Award # FA8655-21-1-7038), 2021-09-01 -- 2024-08-31.
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Swedish National Space Board (2020-00256), 2021-01-01 -- 2023-12-31.
Subject Categories
Mechanical Engineering
Applied Mechanics
Materials Chemistry
Composite Science and Engineering
Driving Forces
Sustainable development
Innovation and entrepreneurship
Areas of Advance
Transport
Energy
Materials Science
Infrastructure
Chalmers Materials Analysis Laboratory
DOI
10.1016/j.carbon.2021.09.037