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Formic acid as additive for the preparation of high-performance FePO4 materials by spray drying method.
- Source :
-
Ceramics International . Dec2017, Vol. 43 Issue 18, p16652-16658. 7p. - Publication Year :
- 2017
-
Abstract
- High-performance ferric phosphate (FePO 4 ), with well-defined ellipsoid morphology and uniform particle size distribution, is successfully fabricated via a green spray drying method with formic acid as additive. It is found that the added formic acid plays a crucial role for the formation of the well-distributed FePO 4 particles. Benefited by the outstanding structure and properties of ferric phosphate prepared above, a high performance of lithium iron phosphate (LiFePO 4 ) has been prepared. It exhibits high capacity, especially at high charging/discharging rate (158.4 mAh g −1 at 0.2 C and 107.3 mAh g −1 at 10 C), and excellent cycling stability (without capacity fading after cycling for 200cycles at 1 C). All these impressive electrochemical performance could be ascribed to the FePO 4 precursor, and further attributed to the addition of formic acid, which may play as a template, resulting in the well-defined morphology, uniform particles size distribution, hierarchical pore structure, and high surface area of the ferric phosphate. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 43
- Issue :
- 18
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 125706456
- Full Text :
- https://doi.org/10.1016/j.ceramint.2017.09.055