Quantification of Degradation Processes in Lithium-Ion Batteries Through Internal Strain Measurement with Fiber Bragg Grating Sensors
An important aspect of lithium-ion batteries related to lifetime and aging is the change in state within the cells, which results from the expansion of the electrode materials and causes internal stress during operation. In this work, fiber optical sensors by means of Bragg gratings are utilized to...
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MDPI AG
2025-06-01
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| Online Access: | https://www.mdpi.com/2313-0105/11/6/218 |
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| author | Leonard Kropkowski Tim Oestreich Fangqi Li Alexandra Burger Antonio Nedjalkov Andreas Würsig Wolfgang Schade |
| author_facet | Leonard Kropkowski Tim Oestreich Fangqi Li Alexandra Burger Antonio Nedjalkov Andreas Würsig Wolfgang Schade |
| author_sort | Leonard Kropkowski |
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| description | An important aspect of lithium-ion batteries related to lifetime and aging is the change in state within the cells, which results from the expansion of the electrode materials and causes internal stress during operation. In this work, fiber optical sensors by means of Bragg gratings are utilized to determine the internal strain in the anode material. The collected data were employed to approximate aging-related changes in anode strain using a combination of established methods, such as the differential voltage and incremental capacity analysis. Moreover, additional methodologies are proposed and explored, substituting electrical data with optical strain measurements to quantify degradation effects linked to changes in strain. During the cycling of the cell, changes in the strain behavior have been observed and can be partially attributed to changes in the cell’s electrochemical composition. The methods suggested have proven effective in providing additional insights into the current state of the cells and tracking changes over time due to detected degradation effects. |
| format | Article |
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| institution | Kabale University |
| issn | 2313-0105 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
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| series | Batteries |
| spelling | doaj-art-4701d4c0ad21453bb7c1e595fa7daaad2025-08-20T03:32:27ZengMDPI AGBatteries2313-01052025-06-0111621810.3390/batteries11060218Quantification of Degradation Processes in Lithium-Ion Batteries Through Internal Strain Measurement with Fiber Bragg Grating SensorsLeonard Kropkowski0Tim Oestreich1Fangqi Li2Alexandra Burger3Antonio Nedjalkov4Andreas Würsig5Wolfgang Schade6Institute of Energy Research and Physical Technologies, Clausthal University of Technology, Leibnizstraße 4, 38678 Clausthal-Zellerfeld, GermanyDepartment Fiber Optical Sensor Systems, Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut, HHI, Am Stollen 19H, 38640 Goslar, GermanyDepartment Fiber Optical Sensor Systems, Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut, HHI, Am Stollen 19H, 38640 Goslar, GermanyFraunhofer Institute for Silicon Technology ISIT, Fraunhoferstraße 1, 25524 Itzehoe, GermanyDepartment Fiber Optical Sensor Systems, Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut, HHI, Am Stollen 19H, 38640 Goslar, GermanyFraunhofer Institute for Silicon Technology ISIT, Fraunhoferstraße 1, 25524 Itzehoe, GermanyInstitute of Energy Research and Physical Technologies, Clausthal University of Technology, Leibnizstraße 4, 38678 Clausthal-Zellerfeld, GermanyAn important aspect of lithium-ion batteries related to lifetime and aging is the change in state within the cells, which results from the expansion of the electrode materials and causes internal stress during operation. In this work, fiber optical sensors by means of Bragg gratings are utilized to determine the internal strain in the anode material. The collected data were employed to approximate aging-related changes in anode strain using a combination of established methods, such as the differential voltage and incremental capacity analysis. Moreover, additional methodologies are proposed and explored, substituting electrical data with optical strain measurements to quantify degradation effects linked to changes in strain. During the cycling of the cell, changes in the strain behavior have been observed and can be partially attributed to changes in the cell’s electrochemical composition. The methods suggested have proven effective in providing additional insights into the current state of the cells and tracking changes over time due to detected degradation effects.https://www.mdpi.com/2313-0105/11/6/218lithium-ion batteryinternal strainagingfiber Bragg gratingsdifferential voltage analysisincremental capacity analysis |
| spellingShingle | Leonard Kropkowski Tim Oestreich Fangqi Li Alexandra Burger Antonio Nedjalkov Andreas Würsig Wolfgang Schade Quantification of Degradation Processes in Lithium-Ion Batteries Through Internal Strain Measurement with Fiber Bragg Grating Sensors Batteries lithium-ion battery internal strain aging fiber Bragg gratings differential voltage analysis incremental capacity analysis |
| title | Quantification of Degradation Processes in Lithium-Ion Batteries Through Internal Strain Measurement with Fiber Bragg Grating Sensors |
| title_full | Quantification of Degradation Processes in Lithium-Ion Batteries Through Internal Strain Measurement with Fiber Bragg Grating Sensors |
| title_fullStr | Quantification of Degradation Processes in Lithium-Ion Batteries Through Internal Strain Measurement with Fiber Bragg Grating Sensors |
| title_full_unstemmed | Quantification of Degradation Processes in Lithium-Ion Batteries Through Internal Strain Measurement with Fiber Bragg Grating Sensors |
| title_short | Quantification of Degradation Processes in Lithium-Ion Batteries Through Internal Strain Measurement with Fiber Bragg Grating Sensors |
| title_sort | quantification of degradation processes in lithium ion batteries through internal strain measurement with fiber bragg grating sensors |
| topic | lithium-ion battery internal strain aging fiber Bragg gratings differential voltage analysis incremental capacity analysis |
| url | https://www.mdpi.com/2313-0105/11/6/218 |
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