Electrochemical properties of LiMnxFe1-xPO 4 (x = 0, 0.2, 0.4, 0.6, 0.8 and 1.0)/vapor grown carbon fiber core-sheath composite nanowire synthesized by electrospinning method

Koichi Kagesawa, Eiji Hosono, Masashi Okubo, Daisuke Nishio-Hamane, Tetsuichi Kudo, Haoshen Zhou

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Core-sheath composite nanowires of LiMnxFe1-xPO 4 (x = 0, 0.2, 0.4, 0.6, 0.8 and 1.0) with vapor grown carbon fiber (VGCF) were synthesized by an electrospinning method. X-ray diffraction, SEM and TEM revealed that the electrospinning method could successfully fabricate a VGCF core at the nanowire-structured LiMnxFe1-xPO 4 sheath covered with an amorphous carbon layer. Furthermore, the spot patterns by selected area electron diffraction confirmed that LiMn xFe1-xPO4 sheath consists of bundles of single-crystalline nanowire. The nanowire-structured electrode materials with uniformly dispersed carbon and highly crystalline active materials provided excellent rate capability.

Original languageEnglish
Pages (from-to)615-620
Number of pages6
JournalJournal of Power Sources
Volume248
DOIs
Publication statusPublished - 2014
Externally publishedYes

Keywords

  • Core-sheath nanowire
  • Electrospinning
  • High-power Li-ion battery
  • LiMnFePO4/VGCF

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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