Improving the rate capability of LiFePO4 electrode by controlling particle size distribution
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49078057. Available under License Creative Commons Attribution Non-commercial 4.0. |
Description
In this study, the rate performance of a LiFePO4 (LFP) electrode has been enhanced by optimization of the particle size distribution of the LFP particles. Two LFP samples with different particle sizes (∼50 and ∼350 nm) are mixed with various ratios and the electrochemical performance has been evaluated. Reduction of the contact resistance and increase of the Li diffusion coefficient have been achieved. The electrode with a mixing ratio of 50:50 shows an improved initial capacity at C/10 and superior rate capability compared with the two pristine materials.
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| ID Code: | 198103 | ||||
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| Item Type: | Contribution to Journal (Journal Article) | ||||
| Refereed: | Yes | ||||
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| Measurements or Duration: | 8 pages | ||||
| DOI: | 10.1149/2.0621916jes | ||||
| ISSN: | 0013-4651 | ||||
| Pure ID: | 49078057 | ||||
| Divisions: | Past > Institutes > Institute for Future Environments Past > QUT Faculties & Divisions > Science & Engineering Faculty |
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| Funding Information: | Yin Zhang would like to acknowledge CSIRO for the studentship, and the involvement of CRRC and the Rail Manufacturing Cooperative Research Centre (funded jointly by participating rail organisations and the Australian Federal Government’s Cooperative Research Centres Program). The experimental data reported in this paper were obtained at the Central Analytical Research Facility operated by the Institute for Future Environments, Queensland University of Technology (QUT), Brisbane, Australia. The synchrotron based sXAS data reported in this paper were obtained at the soft X-ray beamline of Australian Synchrotron (AS). The authors would like to acknowledge Mark Quinlan and Felix Lo, QUT, for the assistance with sample synthesis. The authors would like to acknowledge Dr. Michael Jones, QUT, for the assistance with the application for soft X-ray beamline at AS. The authors are grateful to Prof. Gerbrand Ceder, UC Berkeley, for the fruitful discussions on this topic at the 19th International Meeting on Lithium Batteries (IMLB2018). | ||||
| Copyright Owner: | 2019 The Electrochemical Society | ||||
| Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||||
| Deposited On: | 27 Mar 2020 01:59 | ||||
| Last Modified: | 29 Mar 2024 04:56 |
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