Revealing Lithiation Kinetics and Battery Degradation Pathway in LiMn2O4-Based Commercial Cathodes via Electrochemical Strain Microscopy
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Revealing Lithiation Kinetics and Battery Degradation Pathway in LiMn2O4-Based Commercial Cathodes via Electrochemical Strain Microscopy
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| Автор |
Alikin, D.
Slautin, B. Kholkin, A. |
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| Тематика |
INTERCALATION KINETICS
LITHIATION REACTION NANOSCALE RESOLUTION VISCOUS FINGERS DEGRADATION ELECTRIC LOSSES INTERCALATION KINETICS LITHIUM-ION BATTERIES REACTION KINETICS BATTERY DEGRADATION CAPACITY FADE DEGRADATION PATHWAYS ELECTROCHEMICAL STRAIN MICROSCOPIES INTERCALATION KINETICS KEY FACTORS LITHIATION LITHIATION REACTION NANOSCALE RESOLUTIONS VISCOUS FINGERS CATHODES |
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| Описание |
The capacity fade during the cycling of lithium batteries is a key factor limiting further progress in the improvement of electric vehicles, wearable electronic devices, alternative energy sources, etc. One of the main reasons for capacity loss is battery cathode degradation, which significantly influences the battery lifetime. Despite in-depth knowledge of battery degradation at the chemical level, the kinetics of the degradation at the resolution of the individual elements of the cathode are not fully understood. Here, we studied lithiation kinetics in commercial cathodes based on lithium manganese spinel using the electrochemical strain microscopy local method. Supported by the experimental finding, the “viscous fingers” model of lithium ions intercalation–deintercalation in individual particles of the cathode was proposed. The non-linear dynamics of the lithiation front were suggested to be stimulated by the non-uniform stress field and gradient of the chemical potential. Irregularity of the lithiation front causes the formation of the residual lithiated pocket in the delithiated particles, which effectively reduces the volume available for chemical reaction. The obtained results shed further light on the degradation of the lithium battery cathodes and can be applicable for other cathode materials. © 2022 by the authors.
Ministry of Education and Science of the Russian Federation, Minobrnauka Ministry of Science and Higher Education of the Russian Federation, (075-15-2021-677) Funding text 1: The equipment of the Ural Center for Shared Use “Modern nanotechnology” of Ural Federal University (Reg. # 2968), which is supported by the Ministry of Science and Higher Education RF (Project # 075-15-2021-677), was used. Funding text 2: The research funding from the Ministry of Science and Higher Education of the Russian Federation (Ural Federal University Program of Development within the Priority-2030 Program) is gratefully acknowledged. |
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| Дата |
2024-04-08T11:06:40Z
2024-04-08T11:06:40Z 2022 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Alikin, D, Slautin, B & Kholkin, A 2022, 'Revealing Lithiation Kinetics and Battery Degradation Pathway in LiMn2O4-Based Commercial Cathodes via Electrochemical Strain Microscopy', Batteries, Том. 8, № 11, 220. https://doi.org/10.3390/batteries8110220
Alikin, D., Slautin, B., & Kholkin, A. (2022). Revealing Lithiation Kinetics and Battery Degradation Pathway in LiMn2O4-Based Commercial Cathodes via Electrochemical Strain Microscopy. Batteries, 8(11), [220]. https://doi.org/10.3390/batteries8110220 2313-0105 Final All Open Access; Gold Open Access https://www.mdpi.com/2313-0105/8/11/220/pdf?version=1667637505 https://www.mdpi.com/2313-0105/8/11/220/pdf?version=1667637505 http://elar.urfu.ru/handle/10995/131335 10.3390/batteries8110220 85141782109 000883859600001 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
MDPI
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| Источник |
Batteries
Batteries |
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