The Distinct Role of Transition Metal Doping for LiFePO4 Cathode Material
- The Distinct Role of Transition Metal Doping for LiFePO4 Cathode Material
- 박승빈; 박창규; 황진태; 조원일; 장호
- energy storage materials; mechanical milling; diffusion; electrical conductivity; electrochemistry
- Issue Date
- Metals and Materials International
- VOL 17, NO 5, 729-732
- This study addresses the controversial issue of the effect of metal ion doping on the electrochemical performance
of LiFePO4. Metal doping is claimed to be a possible cause for the capacity improvement of LiFePO4 as
carbon coating. Results obtained inthis study show that dry-milled LiFePO4 and LiFe0.9Cr0.1PO4 deliver 119
and 101 mAh g−1, while wet-milled LiFePO4 and LiFe0.9Cr0.1PO4 deliver 149 mAh g−1
mAh g−1, respectively. This indicates that the capacity improvement by metal doping is due to the carbonaceous
materials produced during fabrication and not by the enhancement of ion diffusion. On the other hand, cycle
test results show that metal doping enhances the rate capability at high C-rates by accelerating lithium ion diffusion.
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.