Zilinskaite, S., Reeves-McLaren, N. orcid.org/0000-0002-1061-1230 and Boston, R. orcid.org/0000-0002-2131-2236 (2022) Xanthan gum as a water-based binder for P3-Na2/3Ni1/3Mn2/3O2. Frontiers in Energy Research, 10. 909486.
Abstract
P3-Na2/3Ni1/3Mn2/3O2 (P3-NNM) is a promising cathode material for Na-ion batteries, although large volume expansions during cycling mean that challenges around suitable binders still remain. This study reports the use of xanthan gum as a water-soluble, easy to handle, and sustainable biopolymer binder in conjunction with a P3-Na2/3Ni1/3Mn2/3O2-positive electrode material. The conditions for recovering pristine P3-NNM powders, following water-based processing, are established, and the electrochemical performance of cells prepared using the xanthan gum binder are compared to the more traditional polyvinylidene fluoride. Comparable discharge capacities are observed regardless of the binder choice, at ca. 115 mA h g−1 (77 mAh g−1 after 50 cycles; 0.1 C between 2.0 and 4.2 V). The xanthan gum binder cells also show a similar rate capability and slightly higher capacities at faster c-rates vs. polyvinylidene fluoride, making xanthan gum a viable alternative to the traditional organic binders for water-stable cathode materials.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 The Authors. This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
Keywords: | xanthan gum; water-based binder; sodium ion battery; cathode; electrochemistry |
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 Engineering and Physical Sciences Research Council EP/R00661X/1; EP/S019367/1; EP/P02470X/1 Engineering and Physical Sciences Research Council EP/P025285/1; EP/V034804/1; EP/T012420/1 Lloyds Register Foundation n/a The Royal Academy of Engineering RF1516\15\21 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 28 Sep 2022 13:48 |
Last Modified: | 28 Sep 2022 13:48 |
Status: | Published |
Publisher: | Frontiers Media SA |
Refereed: | Yes |
Identification Number: | 10.3389/fenrg.2022.909486 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:190917 |