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Overview of Battery...
Overview of Battery Impedance Modeling Including Detailed State-of-the-Art Cylindrical 18650 Lithium-Ion Battery Cell Comparisons
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- Estaller, Julian (författare)
- Universität Der Bundeswehr München,Bundeswehr University Munich
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- Kersten, Anton, 1991 (författare)
- Universität Der Bundeswehr München,Bundeswehr University Munich,Chalmers tekniska högskola,Chalmers University of Technology
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- Kuder, Manuel (författare)
- Universität Der Bundeswehr München,Bundeswehr University Munich
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- Thiringer, Torbjörn, 1966 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Eckerle, Richard (författare)
- Universität Der Bundeswehr München,Bundeswehr University Munich
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- Weyh, Thomas (författare)
- Universität Der Bundeswehr München,Bundeswehr University Munich
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(creator_code:org_t)
- 2022-05-23
- 2022
- Engelska.
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Ingår i: Energies. - : MDPI AG. - 1996-1073 .- 1996-1073. ; 15:10
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https://research.cha... (primary) (free)
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https://research.cha...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Electrical models of battery cells are used in simulations to represent batteries' behavior in various fields of research and development involving battery cells and systems. Electrical equivalent circuit models, either linear or nonlinear, are commonly used for this purpose and are presented in this article. Various commercially available cylindrical, state-of-the-art lithium-ion battery cells, both protected and unprotected, are considered. Their impedance properties, according to four different equivalent circuit models, are measured using electrochemical impedance spectroscopies. Furthermore, the pricing, impedance, specific energy, and C-rate of the chosen battery cells are compared. For example, it is shown that the energy density of modern 18650 cells can vary from a typical value of 200 to about 260 Wh kg(-1), whereas the cell price can deviate by a factor of about 3 to 5. Therefore, as a result, this study presents a concise but comprehensive battery parameter library that should aid battery system designers or power electronic engineers in conducting battery simulations and in selecting appropriate battery cells based on application-specific requirements. In addition, the accuracies and computational efforts of the four equivalent circuit models are compared.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Annan kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Other Chemical Engineering (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biofysik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biophysics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- 18650
- EIS
- NMC
- battery
- Warburg
- Li-ion
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