| Title: | Spectral X-ray micro-CT imaging of rechargeable alkaline batteries |
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| Authors: | ID Coathup, Andrew (Author)
ID Bozzini, Benedetto (Author)
ID Brun, Francesco (Author)
ID Huber, Renato (Author)
ID Kim, Chuljung (Author)
ID Mancini, Lucia (Author)
ID Marini, Emanuele (Author)
ID Brombal, Luca (Author) |
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| Files: |  URL - Source URL, visit https://www.ndt.net/search/docs.php3?id=32573
 PDF - Presentation file, download (4,44 MB)
MD5: 55C08BAB3C968413507E743C446D9C78
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| Language: | English |
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| Typology: | 1.08 - Published Scientific Conference Contribution |
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| Organization: |  ZAG - Slovenian National Building and Civil Engineering Institute
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| Abstract: | Rechargeable alkaline batteries (RABs) represent a promising post-lithium energy storage technology owing to their intrinsic safety, use of sustainable materials, and compatibility with existing battery manufacturing infrastructure. However, their com- mercial deployment remains limited by insufficient understanding of ageing and degradation mechanisms. In this work, spec- tral X-ray micro-computed tomography (S-XμCT) is employed to non-destructively investigate pristine and aged Mn–Bi-based RABs, with the aim of resolving ageing-induced changes. A spectral photon-counting detector was used to acquire multi-energy datasets, which were then processed and decomposed into material-specific volumes corresponding to carbon, manganese, and bismuth. Stability and reproducibility testing confirmed the robustness of the S-XμCT acquisition and decomposition process. Quantitative image analysis revealed a pronounced increase in the number of clustered features in aged samples, strongly local- ized near the anode interface, with the bismuth specific volume providing improved discrimination compared to the traditional attenuation volume. These results highlight the added value of S-XμCT for material-specific, volumetric assessment of degrada- tion phenomena in rechargeable alkaline batteries and suggests its potential as a non-destructive diagnostic tool for battery ageing studies. |
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| Keywords: | zinc battery, rechargeable batteries, tomography, alkaline batteries, spectral CT |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 01.03.2026 |
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| Publisher: | N D T Internet Publishing |
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| Year of publishing: | 2026 |
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| Number of pages: | Str. 1-7 |
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| PID: | 20.500.12556/DiRROS-30299  |
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| UDC: | 620.1/.2 |
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| ISSN on article: | 1435-4934 |
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| DOI: | 10.58286/32573 |
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| COBISS.SI-ID: | 278342147 |
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| Copyright: | © 2026 The Authors |
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| Publication date in DiRROS: | 18.06.2026 |
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| Views: | 41 |
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| Downloads: | 29 |
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| Metadata: |    |
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