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Experimental and co...
Experimental and computational characterization of carbon fibre based structural battery electrode laminae
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- Carlstedt, David, 1984 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Rittweger, Florian (author)
- Hochschule für Angewandte Wissenschaften Hamburg (HAW),Hamburg University of Applied Sciences (HAW)
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- Runesson, Kenneth, 1948 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Navarro Suárez, Adriana, 1983 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Xu, Johanna, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Duan, Shanghong, 1992 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Larsson, Fredrik, 1975 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Riemschneider, Karl-Ragmar (author)
- Hochschule für Angewandte Wissenschaften Hamburg (HAW),Hamburg University of Applied Sciences (HAW)
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- Asp, Leif, 1966 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2022
- 2022
- English.
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In: Composites Science and Technology. - : Elsevier BV. - 0266-3538. ; 220
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https://doi.org/10.1...
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Abstract
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- In this paper, electrode laminae consisting of carbon fibres embedded in structural battery electrolyte (CF-SBE electrodes) are characterized with respect to their multifunctional (i.e. combined electrochemical and mechanical) performance utilizing experimental and numerical techniques. The studied material is made from commercially available polyacrylonitrile (PAN)-based carbon fibres and a porous SBE matrix/electrolyte, which is composed of two continuous phases: a solid polymer skeleton (vinyl ester-based) and a Li-salt containing liquid electrolyte. Experimental and numerical studies are performed on CF-SBE electrode half-cells, whereby a coupled electro-chemo-mechanical finite element model is exploited. Results show that, similar to traditional batteries, electrode thickness, transport properties of the electrolyte and applied current significantly affect electrochemical performance. For example, increasing the electrode thickness of the studied CF-SBE electrode from 50 μm to 200 μm results in a reduction in specific capacity of approximately 70/95% for an applied current of 30/120 mA g? 1 of fibres, respectively. Further, Li-insertion induced longitudinal expansion of carbon fibre electrodesare video microscopically recorded during charge/discharge conditions. In liquid electrolyte the total/reversible longitudinal expansion are found to be 0.85/0.8% while for the CF-SBE electrode the reversible expansion is found to be 0.6%. The fibre expansion in the CF-SBE electrode gives rise to residual strains which is demonstrated numerically. We expect that the utilized computational framework and experimental data open a route to develop high-performing, both mechanically and electrochemically, carbon fibre based battery electrode laminae for future lightweight structural components with energy storage ability.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Farkostteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Vehicle Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Keyword
- Multifunctional composites
- Biomimetics
- Electro-chemical behaviour
- Carbon fibres
- Electro-mechanical behaviour
Publication and Content Type
- art (subject category)
- ref (subject category)
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Carlstedt, David ...
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Rittweger, Flori ...
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Runesson, Kennet ...
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Navarro Suárez, ...
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Xu, Johanna, 198 ...
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Duan, Shanghong, ...
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show more...
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Larsson, Fredrik ...
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Riemschneider, K ...
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Asp, Leif, 1966
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Mechanical Engin ...
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and Applied Mechanic ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Mechanical Engin ...
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and Vehicle Engineer ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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and Composite Scienc ...
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Composites Scien ...
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Chalmers University of Technology