Effect of lithiation on the elastic moduli of carbon fibres
Artikel i vetenskaplig tidskrift, 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
Författare
Shanghong Duan
Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik
Anand Harihara Subramonia Iyer
Chalmers, Fysik, Mikrostrukturfysik
David Carlstedt
Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik
Florian Rittweger
Hochschule für Angewandte Wissenschaften Hamburg
Andrew Sharits
Air Force Research Laboratory
UES Inc.
Calvin Maddox
Air Force Research Laboratory
UES Inc.
Karl-Ragmar Riemschneider
Hochschule für Angewandte Wissenschaften Hamburg
David Mollenhauer
Air Force Research Laboratory
Magnus Hörnqvist Colliander
Chalmers, Fysik, Mikrostrukturfysik
Fang Liu
Chalmers, Industri- och materialvetenskap, Material och tillverkning
Leif Asp
Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik
Carbon
0008-6223 (ISSN)
Vol. 185 234-241Structural pOweR CompositEs foR futurE civil aiRcraft (SORCERER)
Europeiska kommissionen (EU) (EC/H2020/738085), 2017-02-01 -- 2020-02-28.
Utveckling av strukturella batterier
United States Air Force (USAF) (Award # FA8655-21-1-7038), 2021-09-01 -- 2024-08-31.
Strukturella batterikompositer för viktlös energilagring
Rymdstyrelsen (2020-00256), 2021-01-01 -- 2023-12-31.
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Chalmers materialanalyslaboratorium
DOI
10.1016/j.carbon.2021.09.037