Journal article : Review
Review—"Knees" in lithium-ion battery aging trajectories
- Abstract:
- Lithium-ion batteries can last many years but sometimes exhibit rapid, nonlinear degradation that severely limits battery lifetime. In this work, we review prior work on "knees" in lithium-ion battery aging trajectories. We first review definitions for knees and three classes of "internal state trajectories" (termed snowball, hidden, and threshold trajectories) that can cause a knee. We then discuss six knee "pathways", including lithium plating, electrode saturation, resistance growth, electrolyte and additive depletion, percolation-limited connectivity, and mechanical deformation—some of which have internal state trajectories with signals that are electrochemically undetectable. We also identify key design and usage sensitivities for knees. Finally, we discuss challenges and opportunities for knee modeling and prediction. Our findings illustrate the complexity and subtlety of lithium-ion battery degradation and can aid both academic and industrial efforts to improve battery lifetime.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, 3.9MB, Terms of use)
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- Publisher copy:
- 10.1149/1945-7111/ac6d13
Authors
- Publisher:
- IOP Publishing
- Journal:
- Journal of The Electrochemical Society More from this journal
- Volume:
- 169
- Issue:
- 6
- Article number:
- 060517
- Publication date:
- 2022-06-10
- Acceptance date:
- 2022-05-05
- DOI:
- EISSN:
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1945-7111
- ISSN:
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0013-4651
- Language:
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English
- Keywords:
- Subtype:
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Review
- Pubs id:
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1266721
- Local pid:
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pubs:1266721
- Deposit date:
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2022-07-13
Terms of use
- Copyright holder:
- Attia et al.
- Copyright date:
- 2022
- Rights statement:
- ©2022 The Author(s). Published on behalf of The Electrochemical Society by IOP Publishing Limited. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/ by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited.
- Licence:
- CC Attribution (CC BY)
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