Dynamic Charge Acceptance Compared to Electrochemical Impedance Spectroscopy Parameters: Dependencies on Additives, State of Charge, and Prior Usage
The goal of this work was to predict the dynamic charge acceptance (DCA) for cells using different additives on the negative electrode from the evaluation of small-signal measurements by electrochemical impedance spectroscopy (EIS). Thereby, various operating points were evaluated, such as state of...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-05-01
|
| Series: | Batteries |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2313-0105/9/5/263 |
| _version_ | 1797601122896052224 |
|---|---|
| author | Sophia Bauknecht Julia Kowal Jochen Settelein Markus Föhlisch Eckhard Karden |
| author_facet | Sophia Bauknecht Julia Kowal Jochen Settelein Markus Föhlisch Eckhard Karden |
| author_sort | Sophia Bauknecht |
| collection | DOAJ |
| description | The goal of this work was to predict the dynamic charge acceptance (DCA) for cells using different additives on the negative electrode from the evaluation of small-signal measurements by electrochemical impedance spectroscopy (EIS). Thereby, various operating points were evaluated, such as state of charge (SoC) and prior usage (charge or discharge). The 2V test cells under investigation utilized plates of enhanced flooded 3P2N battery cells (EFB). They contained three positive and two negative electrodes. The latter varied in their additive composition. In total, eight different negative electrodes were investigated, five including specially synthesized amorphous carbon as an additive, two with unknown additive mixes, and one including a commercially available carbon black. The best parameters for predicting the DCA were found within the first semicircle of the negative half-cell spectra measured during a superimposed charging current. |
| first_indexed | 2024-03-11T03:56:59Z |
| format | Article |
| id | doaj.art-b81770fe4bac4c268c398c578564604d |
| institution | Directory Open Access Journal |
| issn | 2313-0105 |
| language | English |
| last_indexed | 2024-03-11T03:56:59Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Batteries |
| spelling | doaj.art-b81770fe4bac4c268c398c578564604d2023-11-18T00:28:37ZengMDPI AGBatteries2313-01052023-05-019526310.3390/batteries9050263Dynamic Charge Acceptance Compared to Electrochemical Impedance Spectroscopy Parameters: Dependencies on Additives, State of Charge, and Prior UsageSophia Bauknecht0Julia Kowal1Jochen Settelein2Markus Föhlisch3Eckhard Karden4Electrical Energy Storage Technology, Technische Universität Berlin, 10587 Berlin, GermanyElectrical Energy Storage Technology, Technische Universität Berlin, 10587 Berlin, GermanyFraunhofer Institute for Silicate Research ISC, Neunerplatz 2, 97082 Würzburg, GermanyMOLL Batterien GmbH, Angerstraße 50, 96231 Bad Staffelstein, GermanyFord Research & Innovation Center Aachen, 52072 Aachen, GermanyThe goal of this work was to predict the dynamic charge acceptance (DCA) for cells using different additives on the negative electrode from the evaluation of small-signal measurements by electrochemical impedance spectroscopy (EIS). Thereby, various operating points were evaluated, such as state of charge (SoC) and prior usage (charge or discharge). The 2V test cells under investigation utilized plates of enhanced flooded 3P2N battery cells (EFB). They contained three positive and two negative electrodes. The latter varied in their additive composition. In total, eight different negative electrodes were investigated, five including specially synthesized amorphous carbon as an additive, two with unknown additive mixes, and one including a commercially available carbon black. The best parameters for predicting the DCA were found within the first semicircle of the negative half-cell spectra measured during a superimposed charging current.https://www.mdpi.com/2313-0105/9/5/263dynamic charge acceptanceelectrochemical impedance spectroscopyequivalent circuit modellead-acid batteries |
| spellingShingle | Sophia Bauknecht Julia Kowal Jochen Settelein Markus Föhlisch Eckhard Karden Dynamic Charge Acceptance Compared to Electrochemical Impedance Spectroscopy Parameters: Dependencies on Additives, State of Charge, and Prior Usage Batteries dynamic charge acceptance electrochemical impedance spectroscopy equivalent circuit model lead-acid batteries |
| title | Dynamic Charge Acceptance Compared to Electrochemical Impedance Spectroscopy Parameters: Dependencies on Additives, State of Charge, and Prior Usage |
| title_full | Dynamic Charge Acceptance Compared to Electrochemical Impedance Spectroscopy Parameters: Dependencies on Additives, State of Charge, and Prior Usage |
| title_fullStr | Dynamic Charge Acceptance Compared to Electrochemical Impedance Spectroscopy Parameters: Dependencies on Additives, State of Charge, and Prior Usage |
| title_full_unstemmed | Dynamic Charge Acceptance Compared to Electrochemical Impedance Spectroscopy Parameters: Dependencies on Additives, State of Charge, and Prior Usage |
| title_short | Dynamic Charge Acceptance Compared to Electrochemical Impedance Spectroscopy Parameters: Dependencies on Additives, State of Charge, and Prior Usage |
| title_sort | dynamic charge acceptance compared to electrochemical impedance spectroscopy parameters dependencies on additives state of charge and prior usage |
| topic | dynamic charge acceptance electrochemical impedance spectroscopy equivalent circuit model lead-acid batteries |
| url | https://www.mdpi.com/2313-0105/9/5/263 |
| work_keys_str_mv | AT sophiabauknecht dynamicchargeacceptancecomparedtoelectrochemicalimpedancespectroscopyparametersdependenciesonadditivesstateofchargeandpriorusage AT juliakowal dynamicchargeacceptancecomparedtoelectrochemicalimpedancespectroscopyparametersdependenciesonadditivesstateofchargeandpriorusage AT jochensettelein dynamicchargeacceptancecomparedtoelectrochemicalimpedancespectroscopyparametersdependenciesonadditivesstateofchargeandpriorusage AT markusfohlisch dynamicchargeacceptancecomparedtoelectrochemicalimpedancespectroscopyparametersdependenciesonadditivesstateofchargeandpriorusage AT eckhardkarden dynamicchargeacceptancecomparedtoelectrochemicalimpedancespectroscopyparametersdependenciesonadditivesstateofchargeandpriorusage |