at Google ScholarTitle data
Singh, Madhav ; Willert-Porada, Monika:
Polyol process for the synthesis of LiFePO₄ rhombohedral particles.
In: Advanced Powder Technology.
Vol. 22
(March 2011)
Issue 2
.
- pp. 284-289.
ISSN 0921-8831
DOI: https://doi.org/10.1016/j.apt.2011.02.006
Abstract in another language
As a new approach, LiFePO₄ nanoparticles were directly synthesized from precursors iron(III) nitrate and lithium dihydrogen phosphate by a polyol process without post heat treatment in one step. The obtained powders were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and combined thermogravimetry and differential scanning calorimetry and mass spectroscopy TG/DSC/MS. The X-ray diffraction showed the orthorhombic crystal structure of LiFePO₄ without any impurity phases. The synthesized LiFePO₄ has rhombohedral morphology with high aspect ratio with a thickness of less than 100 nm. TG/DSC/MS revealed a weight loss of only 10.9 wt.% when heating up to 1000 °C. Electrodes prepared from the LiFePO₄ particles were electrochemically characterized by cycling at 0.1C current rate and temperatures in half cell measurements against lithium foil between 2 and 4.2 V in an EC/DMC electrolyte with 1 M LiPF₆ as conductive salt. A reversible specific capacity of 146 mAh/g was achieved by applying carbon coating on the rhombohedral particles.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Keywords: | Cathode material; Polyol; LiFePO4 rhombohedrals; X-ray diffraction; Cyclic voltammetry |
| Institutions of the University: | Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Former Professors > Chair Electrochemical Process Engineering - Univ.-Prof. Dr. Monika Willert-Porada Faculties Faculties > Faculty of Engineering Science > Former Professors |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science > 500 Natural sciences 600 Technology, medicine, applied sciences > 620 Engineering |
| Date Deposited: | 21 Jun 2017 10:03 |
| Last Modified: | 21 Jun 2017 10:03 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/13648 |