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High mass loading additive-free LiFePO4 cathodes with 500 μm thickness for high areal capacity Li-ion batteries.
- Source :
-
Journal of Power Sources . May2020, Vol. 458, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
-
Abstract
- We report the preparation of thick ceramic electrodes of the olivine LiFePO 4 (LFP) with high mass loading. These electrodes are preparated by means of Powder Extrusion Moulding (PEM), which is a technology easily scalable and cheap. These LFP cathodes are additive-free (neither binder nor extra carbon black) with ~0.5 mm thickness, allowing to develop very high areal capacity (13.7 mA h cm−2). By means of a strict control of sintering process, the carbon coating of the commercial LFP powder remains and the decomposition of the active material is prevented. The optimized self-supported LFP cathode presents good cyclability over 20 cycles at C/10 with no capacity loss. The good electrochemical performance of these novel LFP thick electrodes and their non-flammability make them interesting candidates for both mobile and stationary applications. Image 1 • Thick ceramic electrodes of LiFePO4 with high areal capacities (13.7 mA h cm-2). • Self-supported LFP cathode with good cyclability at C/10. • New generation of high performances and sustainable ultra-thick electrodes. • Thick electrodes (~500 μm) prepared by an easily scalable manufacturing process. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03787753
- Volume :
- 458
- Database :
- Academic Search Index
- Journal :
- Journal of Power Sources
- Publication Type :
- Academic Journal
- Accession number :
- 142578211
- Full Text :
- https://doi.org/10.1016/j.jpowsour.2020.228033