Dong, B., Jacas Biendicho, J., Hull, S. et al. (2 more authors) (2018) In-Situ Neutron Studies of Electrodes for Li-Ion Batteries Using a Deuterated Electrolyte: LiCoO2 as a Case Study. Journal of The Electrochemical Society, 165 (5). A793-A801. ISSN 0013-4651
Abstract
An electrochemical cell for in-situ neutron powder diffraction studies of electrode materials for lithium-ion batteries is presented. The device has a coin cell geometry, consisting of 8.4 cm diameter, circular components that can be stacked together and clamped tight using sixteen polyetheretherketone (PEEK) screws. The background issue associated with incoherent scattering from hydrogen within the organic electrolyte was addressed by replacing the normal electrolyte with a deuterated analogue, significantly improving the peak-to-background ratio of the in-situ neutron data. Initial in-situ studies showed clear structural evolution within LixCoO2 during charge in a half-cell with lithium metal as the counter electrode, in agreement with previous studies. In addition, the in-situ cell was shown to provide electrochemical performance comparable to that of equivalent coin cells of the commercial design and, following these demonstration studies, is available for in-situ structural studies of other lithium cathode and anode materials during charge/discharge cycling.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 The Electrochemical Society. This is an author produced version of a paper subsequently published in Journal of The Electrochemical Society. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | in-situ battery measurements; Li-based electrodes; neutron diffraction |
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) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 04 Jun 2018 13:37 |
Last Modified: | 06 Jun 2018 15:23 |
Published Version: | https://doi.org/10.1149/2.0291805jes |
Status: | Published |
Publisher: | Electrochemical Society |
Refereed: | Yes |
Identification Number: | 10.1149/2.0291805jes |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:131442 |