High-performance lithium-ion battery and symmetric supercapacitors based on FeCo2O4 nanoflakes electrodes

Saad Gomaa Mohamed, Chih Jung Chen, Chih Kai Chen, Shu Fen Hu, Ru Shi Liu

Research output: Contribution to journalArticle

150 Citations (Scopus)

Abstract

A successive preparation of FeCo2O4 nanoflakes arrays on nickel foam substrates is achieved by a simple hydrothermal synthesis method. After 170 cycles, a high capacity of 905 mAh g-1 at 200 mA g-1 current density and very good rate capabilities are obtained for lithium-ion battery because of the 2D porous structures of the nanoflakes arrays. The distinctive structural features provide the battery with excellent electrochemical performance. The symmetric supercapacitor on nonaqueous electrolyte demonstrates high specific capacitance of 433 F g-1 at 0.1 A g-1 and 16.7 F g-1 at high scan rate of 5 V s-1 and excellent cyclic performance of 2500 cycles of charge-discharge cycling at 2 A g-1 current density, revealing excellent long-term cyclability of the electrode even under rapid charge-discharge conditions.

Original languageEnglish
Pages (from-to)22701-22708
Number of pages8
JournalACS Applied Materials and Interfaces
Volume6
Issue number24
DOIs
Publication statusPublished - 2014 Dec 24

Keywords

  • FeCoO
  • Li-ion battery
  • nanoflakes
  • supercapacitors

ASJC Scopus subject areas

  • Materials Science(all)

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