VinaR - Repository of the Vinča Nuclear Institute
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrilic)
    • Serbian (Latin)
  • Login
View Item 
  •   Vinar
  • Vinča
  • DAIS Import
  • View Item
  •   Vinar
  • Vinča
  • DAIS Import
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

The influence of fluorine doping on the structural and the electrical properties of LiFePO4 powder

Thumbnail
2016
7549.pdf (63.00Kb)
Authors
Jugović, Dragana
Mitrić, Miodrag
Milović, Miloš
Cvjetićanin, Nikola
Jokić, Bojan M.
Umićević, Ana
Uskoković, Dragan
Contributors
Uskoković, Dragan
Radmilović, Velimir R.
Conference object
Metadata
Show full item record
Abstract
Low intrinsic electronic conductivity is the main weakness of LiFePO4 for the use as cathode material in lithium ion batteries. Here is presented an experimental proof of the theoretical prediction that fluorine doping of LiFePO4 can enhance its electrical conductivity. LiFePO4 and fluorine-doped LiFePO4 olivine type, carbon-free powders are synthesized and examined. Crystal structure refinements in the space group Pnma reveal that doping with fluorine ions preserves olivine structure with the reduction of both the lattice parameters and the antisite defect, and an increase of a crystallite size. A small amount of incorporated fluorine enhances electrical conductivity from 4.6 × 10-7 Scm-1 to 2.3 × 10-6 Scm-1 and has positive impact on the electrochemical performances. Several spectroscopy techniques (Mössbauer, FTIR, and Raman) disclose differences between two powders and additionally support the findings of both the Rietveld refinement and the conductivity measurements.
Keywords:
LiFePO4 / fluorine doping / magnetic properties
Source:
Programme and The Book of Abstracts / Eighteenth Annual Conference YUCOMAT 2016, Herceg Novi, September 5-10, 2016, 2016, 35-35
Publisher:
  • Belgrade : Materials Research Society of Serbia
Projects:
  • Molecular designing of nanoparticles with controlled morphological and physicochemical characteristics and functional materials based on them (RS-45004)

ISBN: 978-86-919111-1-9

[ Google Scholar ]
URI
http://dais.sanu.ac.rs/123456789/898
http://www.itn.sanu.ac.rs/opus4/frontdoor/index/index/docId/1180
http://www.itn.sanu.ac.rs/opus4/files/1180/Jugovic_Yucomat2016-02.pdf
http://vinar.vin.bg.ac.rs/handle/123456789/7555
Collections
  • DAIS Import
Institution
Vinča

DSpace software copyright © 2002-2015  DuraSpace
About VinaR - Repository of the Vinča Institute of Nuclear Sciences | Send Feedback

OpenAIRERCUB
 

 

All of DSpaceInstitutionsAuthorsTitlesSubjectsThis institutionAuthorsTitlesSubjects

Statistics

View Usage Statistics

DSpace software copyright © 2002-2015  DuraSpace
About VinaR - Repository of the Vinča Institute of Nuclear Sciences | Send Feedback

OpenAIRERCUB