Communication—Identifying and Managing Reversible Capacity Losses that Falsify Cycle Ageing Tests of Lithium-Ion Cells.
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| Title: | Communication—Identifying and Managing Reversible Capacity Losses that Falsify Cycle Ageing Tests of Lithium-Ion Cells. |
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| Authors: | Burrell, Robert1, Zulke, Alana1 a.zulke@lancaster.ac.uk, Keil, Peter2, Hoster, Harry1 |
| Source: | Journal of The Electrochemical Society. Oct2020, Vol. 167 Issue 13, p138-143. 6p. |
| Subjects: | Anodes, Time measurements, Cells, Lithium ions |
| Abstract: | We report on a cycle ageing study of commercial NCA/Gr+Si cells, in which reversible capacity fluctuations turn a central experimental finding upside down: an upper voltage limit of 4.1 V seems to cause faster degradation than going all the way to 4.2 V. The underlying effect is the reversible loss of lithium inventory into passive anode overhang areas. We demonstrate how the resulting artefact arises from a combination of slow transport processes and the related time periods spent in specific state-of charge regions. We propose an alternative visualisation tool to identify and manage such artefacts, often neglected in typical ageing studies. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of The Electrochemical Society is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 146590890 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Communication—Identifying and Managing Reversible Capacity Losses that Falsify Cycle Ageing Tests of Lithium-Ion Cells. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Burrell%2C+Robert%22">Burrell, Robert</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Zulke%2C+Alana%22">Zulke, Alana</searchLink><relatesTo>1</relatesTo><i> a.zulke@lancaster.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Keil%2C+Peter%22">Keil, Peter</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Hoster%2C+Harry%22">Hoster, Harry</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+The+Electrochemical+Society%22">Journal of The Electrochemical Society</searchLink>. Oct2020, Vol. 167 Issue 13, p138-143. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Anodes%22">Anodes</searchLink><br /><searchLink fieldCode="DE" term="%22Time+measurements%22">Time measurements</searchLink><br /><searchLink fieldCode="DE" term="%22Cells%22">Cells</searchLink><br /><searchLink fieldCode="DE" term="%22Lithium+ions%22">Lithium ions</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: We report on a cycle ageing study of commercial NCA/Gr+Si cells, in which reversible capacity fluctuations turn a central experimental finding upside down: an upper voltage limit of 4.1 V seems to cause faster degradation than going all the way to 4.2 V. The underlying effect is the reversible loss of lithium inventory into passive anode overhang areas. We demonstrate how the resulting artefact arises from a combination of slow transport processes and the related time periods spent in specific state-of charge regions. We propose an alternative visualisation tool to identify and manage such artefacts, often neglected in typical ageing studies. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of The Electrochemical Society is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1149/1945-7111/abbce1 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 138 Subjects: – SubjectFull: Anodes Type: general – SubjectFull: Time measurements Type: general – SubjectFull: Cells Type: general – SubjectFull: Lithium ions Type: general Titles: – TitleFull: Communication—Identifying and Managing Reversible Capacity Losses that Falsify Cycle Ageing Tests of Lithium-Ion Cells. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Burrell, Robert – PersonEntity: Name: NameFull: Zulke, Alana – PersonEntity: Name: NameFull: Keil, Peter – PersonEntity: Name: NameFull: Hoster, Harry IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 00134651 Numbering: – Type: volume Value: 167 – Type: issue Value: 13 Titles: – TitleFull: Journal of The Electrochemical Society Type: main |
| ResultId | 1 |
