A Novel Modal Representation of Battery Dynamics
Electrochemical cells are complicated energy storage systems with nonlinear voltage dynamics. There is a need for accurate dynamic modeling of the battery system to predict its behavior over time when discharging. The study conducted in this paper developed an intuitive model for electrochemical cel...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9706227/ |
| _version_ | 1819276938881007616 |
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| author | Khaled I. Alsharif Alexander H. Pesch Vamsi Borra Frank X. Li Pedro Cortes Eric Macdonald Kyosung Choo |
| author_facet | Khaled I. Alsharif Alexander H. Pesch Vamsi Borra Frank X. Li Pedro Cortes Eric Macdonald Kyosung Choo |
| author_sort | Khaled I. Alsharif |
| collection | DOAJ |
| description | Electrochemical cells are complicated energy storage systems with nonlinear voltage dynamics. There is a need for accurate dynamic modeling of the battery system to predict its behavior over time when discharging. The study conducted in this paper developed an intuitive model for electrochemical cells based on a simple mechanical analogy. A three-degree-of-freedom, spring-mass-damper system was decomposed into modal coordinates that represent the overall discharge, mass transport, and double-layer effect of the electrochemical cell. The developed model was experimentally demonstrated through pulsed discharge tests of commercially available lithium-ion and nickel metal hydride cells. The modal parameters of the natural frequency and damping ratio for each mode were determined by numerically minimizing the error in the time responses. Additionally, the mechanical analog was applied to two datasets developed by the Center for Advanced Life Cycle Engineering (CALCE). The first dataset was used to optimize the modal parameters whereas the second dataset was utilized to validate the tuned parameters. It was found that the modal representation of the mechanical analog could accurately predict the time-response dynamics of all the cells considered. Additionally, by considering the discharge modal coordinate, the open-circuit voltage was determined and validated to that measured experimentally from the voltage relaxation peaks. |
| first_indexed | 2024-12-23T23:48:11Z |
| format | Article |
| id | doaj.art-505bb17e90b44f9cbb16fc09eb623f93 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-23T23:48:11Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-505bb17e90b44f9cbb16fc09eb623f932022-12-21T17:25:27ZengIEEEIEEE Access2169-35362022-01-0110167931680610.1109/ACCESS.2022.31496179706227A Novel Modal Representation of Battery DynamicsKhaled I. Alsharif0https://orcid.org/0000-0001-6819-8613Alexander H. Pesch1Vamsi Borra2https://orcid.org/0000-0003-0348-2044Frank X. Li3Pedro Cortes4Eric Macdonald5Kyosung Choo6https://orcid.org/0000-0002-9238-224XRayen School of Engineering, Youngstown State University, Youngstown, OH, USARayen School of Engineering, Youngstown State University, Youngstown, OH, USARayen School of Engineering, Youngstown State University, Youngstown, OH, USARayen School of Engineering, Youngstown State University, Youngstown, OH, USARayen School of Engineering, Youngstown State University, Youngstown, OH, USADepartment of Electrical Engineering, The University of Texas at El Paso, El Paso, TX, USARayen School of Engineering, Youngstown State University, Youngstown, OH, USAElectrochemical cells are complicated energy storage systems with nonlinear voltage dynamics. There is a need for accurate dynamic modeling of the battery system to predict its behavior over time when discharging. The study conducted in this paper developed an intuitive model for electrochemical cells based on a simple mechanical analogy. A three-degree-of-freedom, spring-mass-damper system was decomposed into modal coordinates that represent the overall discharge, mass transport, and double-layer effect of the electrochemical cell. The developed model was experimentally demonstrated through pulsed discharge tests of commercially available lithium-ion and nickel metal hydride cells. The modal parameters of the natural frequency and damping ratio for each mode were determined by numerically minimizing the error in the time responses. Additionally, the mechanical analog was applied to two datasets developed by the Center for Advanced Life Cycle Engineering (CALCE). The first dataset was used to optimize the modal parameters whereas the second dataset was utilized to validate the tuned parameters. It was found that the modal representation of the mechanical analog could accurately predict the time-response dynamics of all the cells considered. Additionally, by considering the discharge modal coordinate, the open-circuit voltage was determined and validated to that measured experimentally from the voltage relaxation peaks.https://ieeexplore.ieee.org/document/9706227/Batteriesdynamic system modelingmechanical equivalent systemmechanical analogmodal representation |
| spellingShingle | Khaled I. Alsharif Alexander H. Pesch Vamsi Borra Frank X. Li Pedro Cortes Eric Macdonald Kyosung Choo A Novel Modal Representation of Battery Dynamics IEEE Access Batteries dynamic system modeling mechanical equivalent system mechanical analog modal representation |
| title | A Novel Modal Representation of Battery Dynamics |
| title_full | A Novel Modal Representation of Battery Dynamics |
| title_fullStr | A Novel Modal Representation of Battery Dynamics |
| title_full_unstemmed | A Novel Modal Representation of Battery Dynamics |
| title_short | A Novel Modal Representation of Battery Dynamics |
| title_sort | novel modal representation of battery dynamics |
| topic | Batteries dynamic system modeling mechanical equivalent system mechanical analog modal representation |
| url | https://ieeexplore.ieee.org/document/9706227/ |
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