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Multi-Methodology Modeling and Design of Lithium-Air Cells with Aqueous Electrolyte

Grübl, Daniel and Danner, Timo and Schulz, Volker and Latz, Arnulf and Bessler, Wolfgang (2014) Multi-Methodology Modeling and Design of Lithium-Air Cells with Aqueous Electrolyte. ECS Transactions, 62 (1), pp. 137-149. Electrochemical Society, Inc.. doi: 10.1149/06201.0137ecst. ISSN 1938-5862.

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Metal-air batteries are being investigated as alternative to state-of-the-art lithium-ion batteries for mobile and stationary applications due to their higher specific energy and potentially lower cost. Modeling and simulation techniques allow a better understanding and improvement of the complex mechanisms and properties of metal-air batteries. We present simulation results of a lithium-air (Li/O2) battery with aqueous alkaline (LiOH) electrolyte using three different methodologies, (i) Lattice-Boltzmann modeling on the porous electrode scale, (ii) multi-physics continuum modeling on the single-cell scale and (iii) system simulation of a Li/O2-battery-powered electric vehicle. Different cell designs (porous separator, stirred separator, and redox-flow design) are investigated in order to quantitatively assess their performance. Virtual aqueous lithium-air batteries yielded high specific energy (up to 755 Wh/kg), but considerably uncompetitive specific power, which prohibit the use in battery electric vehicles at the present stage of development.

Item URL in elib:https://elib.dlr.de/93171/
Document Type:Article
Title:Multi-Methodology Modeling and Design of Lithium-Air Cells with Aqueous Electrolyte
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Grübl, Danieldaniel.gruebl (at) hs-offenburg.deUNSPECIFIED
Danner, Timotimo.danner (at) dlr.deUNSPECIFIED
Schulz, Volkervolker.schulz (at) dhbw-mannheim.deUNSPECIFIED
Latz, Arnulfarnulf.latz (at) dlr.deUNSPECIFIED
Bessler, Wolfgangwolfgang.bessler (at) hs-offenburg.deUNSPECIFIED
Journal or Publication Title:ECS Transactions
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1149/06201.0137ecst
Page Range:pp. 137-149
Publisher:Electrochemical Society, Inc.
Keywords:Multi-Methodology Modeling Lithium Air
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion and Use (old)
HGF - Program Themes:Fuel Cells (old)
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Electrochemical Processes (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Computational Electrochemistry
Deposited By: Danner, Timo
Deposited On:08 Dec 2014 13:07
Last Modified:31 Oct 2020 04:34

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