McClelland, I. orcid.org/0000-0001-9821-715X, Booth, S.G. orcid.org/0000-0001-7643-4196, El-Shinawi, H. orcid.org/0000-0002-4743-5576 et al. (6 more authors) (2021) In situ diffusion measurements of a NASICON-structured all-solid-state battery using muon spin relaxation. ACS Applied Energy Materials, 4 (2). pp. 1527-1536.
Abstract
In situ muon spin relaxation is demonstrated as an emerging technique that can provide a volume-averaged local probe of the ionic diffusion processes occurring within electrochemical energy storage devices as a function of state of charge. Herein, we present work on the conceptually interesting NASICON-type all-solid-state battery LiM2(PO4)3, using M = Ti in the cathode, M = Zr in the electrolyte, and a Li metal anode. The pristine materials are studied individually and found to possess low ionic hopping activation energies of ∼50−60 meV and competitive Li+ self-diffusion coefficients of ∼10^–10–10^–9 cm2 s^–1 at 336 K. Lattice matching of the cathode and electrolyte crystal structures is employed for the all-solid-state battery to enhance Li+ diffusion between the components in an attempt to minimize interfacial resistance. The cell is examined by in situ muon spin relaxation, providing the first example of such ionic diffusion measurements. This technique presents an opportunity to the materials community to observe intrinsic ionic dynamics and electrochemical behavior simultaneously in a nondestructive manner.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2021 American Chemical Society. This is an open access article published under a Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. |
Keywords: | muon spin relaxation; solid-state battery; nondestructive technique; Li+ diffusion |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Chemical and Biological Engineering (Sheffield) The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Funding Information: | Funder Grant number Engineering and Physical Sciences Research Council EP/N001982/2 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 08 Mar 2021 14:02 |
Last Modified: | 08 Mar 2021 14:02 |
Status: | Published |
Publisher: | American Chemical Society (ACS) |
Refereed: | Yes |
Identification Number: | 10.1021/acsaem.0c02722 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:170938 |