Precipitation in aqueous lithium-oxygen batteries: A model-based analysis
- In this paper we present a model of the discharge of a lithium–oxygen battery with aqueous electrolyte. Lithium–oxygen batteries (Li–O2) have recently received great attention due to their large theoretical specific energy. Advantages of the aqueous design include the stability of the electrolyte, the long experience with gas diffusion electrodes (GDEs), and the solubility of the reaction productIn this paper we present a model of the discharge of a lithium–oxygen battery with aqueous electrolyte. Lithium–oxygen batteries (Li–O2) have recently received great attention due to their large theoretical specific energy. Advantages of the aqueous design include the stability of the electrolyte, the long experience with gas diffusion electrodes (GDEs), and the solubility of the reaction product lithium hydroxide. However, competitive specific energies can only be obtained if the product is allowed to precipitate. Here we present a dynamic one-dimensional model of a Li–O2 battery including a GDE and precipitation of lithium hydroxide. The model is parameterized using experimental data from the literature. We demonstrate that GDEs remove power limitations due to slow oxygen transport in solutions and that lithium hydroxide tends to precipitate on the anode side. We discuss the system architecture to engineer where nucleation and growth predominantly occurs and to optimize for discharge capacity.…
Document Type: | Article (reviewed) |
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Zitierlink: | https://opus.hs-offenburg.de/1907 | Bibliografische Angaben |
Title (English): | Precipitation in aqueous lithium-oxygen batteries: A model-based analysis |
Author: | Birger Horstmann, Timo Danner, Wolfgang G. BesslerStaff MemberORCiDGND |
Year of Publication: | 2013 |
First Page: | 1299 |
Last Page: | 1314 |
Parent Title (English): | Energy & Environmental Science |
Volume: | 6 |
Issue: | 4/2013 |
ISSN: | 1754-5706 |
DOI: | https://doi.org/10.1039/C3EE24299D |
Language: | English | Inhaltliche Informationen |
Institutes: | Forschung / INES - Institut für nachhaltige Energiesysteme |
Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019) | |
Institutes: | Bibliografie |
GND Keyword: | Lithiumbatterie | Formale Angaben |
Open Access: | Closed Access |
Licence (German): | Urheberrechtlich geschützt |
Opac ID: | Link zum Online-Katalog |