Stallard, J.C., Wheatcroft, L., Booth, S.G. orcid.org/0000-0001-7643-4196 et al. (5 more authors) (2022) Mechanical properties of cathode materials for lithium-ion batteries. Joule, 6 (5). pp. 984-1007. ISSN 2542-4351
Abstract
Mechanochemical degradation processes such as the fracture of cathode particles play a major role in limiting the service life of advanced lithium-ion batteries (LIBs). In order to help alleviate the degradation of battery performance, it is necessary to measure the relationship between the degradation of the mechanical properties of cathodes and their concomitant degradation of electrochemical performance. In this review, measurements of the mechanical properties of LIB cathode materials are summarized from the literature, along with the range of experimental methods used in their determination. Dimensional changes that accompany charge and discharge are compared for active materials of olivine, spinel, and layered atomic structures. The sensitivity of indentation hardness, Young's modulus and fracture strength to grain size, porosity, state of charge and charge/discharge history are critically reviewed and discussed with reference to the behavior of conventional, electrically inactive solids. This approach allows for the identification of microstructural properties that dictate the mechanical properties of LIB cathode materials.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 Elsevier Inc. |
Keywords: | Li-ion batteries; cathode; active materials; mechanical properties; fracture |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Funding Information: | Funder Grant number THE FARADAY INSTITUTION EP/T012447/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/T012420/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 26 Apr 2023 14:25 |
Last Modified: | 26 Apr 2023 14:25 |
Status: | Published |
Publisher: | Elsevier BV |
Refereed: | Yes |
Identification Number: | 10.1016/j.joule.2022.04.001 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:198574 |