Carbon-filament-entangled lithium iron phosphate/carbon composite produced in partially reductive atmosphere: Dual role of the iron as source material and catalyst

Jinhan Yao, Jianbo Wang, Pinjie Zhang, Duncan H. Gregory, Chun'An Ma, Lianbang Wang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Various morphologies of carbon-LiFePO4 composites can be achieved via the reaction of the appropriate iron or iron oxalate and hydrated phosphates with sucrose as the source of carbon in the Ar/H2 or Ar atmosphere. When sintering in Ar condition, the resulting composite comprised a LiFePO4 core coated with a carbon shell. By contrast, Ar/H 2-derived composites produced under a partially reductive atmosphere consisted of olivine particles enmeshed in a carbon filament matrix with the catalytic effect of Fe. Specific capacities as high as 140 mA h g-1 at 1 C and 93 mA h g-1 at 10 C were obtained in carbon-filament- entangled LiFePO4 composite.

Original languageEnglish
Pages (from-to)2175-2181
Number of pages7
JournalCeramics International
Volume39
Issue number2
DOIs
Publication statusPublished - Mar 1 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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