The high power and high energy densities Li ion storage device by nanocrystalline and mesoporous Ni/NiO covered structure

Eiji Hosono, Shinobu Fujihara, Itaru Honma, Haoshen Zhou

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

Ni/NiO covered structure as negative electrode for Li ion storage device with both high energy and high power densities is reported. Nanocrystalline and mesoporous NiO film was formed on the nickel mesh, knitted of nickel micron-wires, via self-template method. The frameworks of the nickel mesh and mesopores of NiO film filled with electrolyte provide ideal electrolyte and lithium ion paths. The nickel wires with low resistivity play a role of electronic path. Moreover, the high surface area of the NiO film reduces the required diffusion length in the active materials and the effective specific current density. The resultant NiO negative electrode indicates the high specific capacities (695 mAh/g) at high current densities (10 A/g).

Original languageEnglish
Pages (from-to)284-288
Number of pages5
JournalElectrochemistry Communications
Volume8
Issue number2
DOIs
Publication statusPublished - 2006 Feb

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Nickel
Ions
Electrolytes
Current density
Wire
Electrodes
Lithium

Keywords

  • High rate
  • Li ion storage device
  • Nanostructures
  • Negative electrode
  • Nickel oxides

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

Cite this

The high power and high energy densities Li ion storage device by nanocrystalline and mesoporous Ni/NiO covered structure. / Hosono, Eiji; Fujihara, Shinobu; Honma, Itaru; Zhou, Haoshen.

In: Electrochemistry Communications, Vol. 8, No. 2, 02.2006, p. 284-288.

Research output: Contribution to journalArticle

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