Communication—Identifying and Managing Reversible Capacity Losses that Falsify Cycle Ageing Tests of Lithium-Ion Cells
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...
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Veröffentlicht in: | Journal of the Electrochemical Society 2020-10, Vol.167 (13), p.130544 |
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creator | Burrell, Robert Zulke, Alana Keil, Peter Hoster, Harry |
description | 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. |
doi_str_mv | 10.1149/1945-7111/abbce1 |
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We propose an alternative visualisation tool to identify and manage such artefacts, often neglected in typical ageing studies.</description><subject>Anode Overhang</subject><subject>Batteries Li-ion</subject><subject>Charging Voltage</subject><subject>Cycle Ageing</subject><subject>Passive Electrode Effect</subject><subject>Reversible Capacity Fade</subject><issn>0013-4651</issn><issn>1945-7111</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kM1KAzEUhYMoWKt7l9kKjs1t5i_LMlgtjAhS1yGTZNqUmUyZpOLsfAif0CcxQ8WVCBcu53K-y-EgdA3kDiBmM2BxEmUAMBNVJTWcoMnv6RRNCAEaxWkC5-jCuV2QkMfZBL0XXdserJHCm85-fXyulLbe1IOxGyyswk_Cis0oXvSb7p2pGo0LsRfS-AGXnXPaYb8VHi9F4wKHi0EGy2KjR2itnXe4q3Fp_NYc2mjVWVzopnGX6KwOhL762VP0urxfF49R-fywKhZlJGmS-ojleSogyzKgoIFAIhVUgqSSpEwB1JRRXbM4V3qu0ixRQtVzqBI5JyBSJhidInL8K_sQttc13_emFf3AgfCxOT7WxMea-LG5gNweEdPt-a479DYE_M9-84d9pwOSZhxoGJLEMd-rmn4D2kKAOw</recordid><startdate>20201001</startdate><enddate>20201001</enddate><creator>Burrell, Robert</creator><creator>Zulke, Alana</creator><creator>Keil, Peter</creator><creator>Hoster, Harry</creator><general>IOP Publishing</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0003-4986-2413</orcidid><orcidid>https://orcid.org/0000-0001-6379-5275</orcidid><orcidid>https://orcid.org/0000-0003-2274-0002</orcidid><orcidid>https://orcid.org/0000-0001-9004-3466</orcidid></search><sort><creationdate>20201001</creationdate><title>Communication—Identifying and Managing Reversible Capacity Losses that Falsify Cycle Ageing Tests of Lithium-Ion Cells</title><author>Burrell, Robert ; Zulke, Alana ; Keil, Peter ; Hoster, Harry</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c356t-9886a1777131e1015cd1ba06c069d11f393ef948de2d675dadf21b5c201a69a93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Anode Overhang</topic><topic>Batteries Li-ion</topic><topic>Charging Voltage</topic><topic>Cycle Ageing</topic><topic>Passive Electrode Effect</topic><topic>Reversible Capacity Fade</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Burrell, Robert</creatorcontrib><creatorcontrib>Zulke, Alana</creatorcontrib><creatorcontrib>Keil, Peter</creatorcontrib><creatorcontrib>Hoster, Harry</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of the Electrochemical Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Burrell, Robert</au><au>Zulke, Alana</au><au>Keil, Peter</au><au>Hoster, Harry</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Communication—Identifying and Managing Reversible Capacity Losses that Falsify Cycle Ageing Tests of Lithium-Ion Cells</atitle><jtitle>Journal of the Electrochemical Society</jtitle><stitle>JES</stitle><addtitle>J. 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subjects | Anode Overhang Batteries Li-ion Charging Voltage Cycle Ageing Passive Electrode Effect Reversible Capacity Fade |
title | Communication—Identifying and Managing Reversible Capacity Losses that Falsify Cycle Ageing Tests of Lithium-Ion Cells |
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