Effect of antimony doping on the properties of a green energy cathode material LiFePO4 for lithium ion batteries

George Ting Kuo Fey, Kai Pin Huang, Po Yu Peng, Yi Chuan Lin, Yung Da Cho, Hsien Ming Kao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

LiFePO4 is considered an environmentally friendly, popular cathode material for lithium ion batteries because of its low raw materials cost, non-toxicity, and excellent thermal stability. The antimony(Sb)-doped LiFePO4/C materials are successfully synthesized by a high-temperature solid-state method in this work. The effects of Sb concentration and synthesized temperature are reported. The sample doped with 1.0 mol.% Sb and synthesized at 873 K delivered the best discharge capacity of 154 mAh g-1 at a 0.2 C-rate. Furthermore, the LiFe0.99Sb0.01PO4/C materials synthesized at 973 K can sustain a 28 C-rate between 4.6 and 2.0 V, and this rate capability is equivalent to charge or discharge in 129 seconds. The doped cathode materials are also characterized by a XRD technique for structure analysis.

Original languageEnglish
Title of host publicationCivil, Materials and Environmental Sciences
Pages152-157
Number of pages6
DOIs
StatePublished - 2013
Event2013 International Conference on Civil, Materials and Environmental Sciences, CMES 2013 - Vancouver, Canada
Duration: 17 Apr 201318 Apr 2013

Publication series

NameAdvanced Materials Research
Volume742
ISSN (Print)1022-6680

Conference

Conference2013 International Conference on Civil, Materials and Environmental Sciences, CMES 2013
Country/TerritoryCanada
CityVancouver
Period17/04/1318/04/13

Keywords

  • Antimony doping
  • High-temperature solid-state method
  • Li-ion batteries
  • LiFePO
  • Sebacic acid

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