Structural and electrochemical properties of Ag nano-dots combined amorphous Si electrodes for thin-film lithium rechargeable batteries

Hyo Jin Ahn, Youn Su Kim, Hee Sang Shim, Byung Kyu Park, Won Jin Moon, Won Bae Kim, Tae Yeon Seong

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We have one-pot fabricated Si-based nanocomposite electrodes containing Ag nano-dots for thinfilm Li rechargeable batteries by a co-sputtering method. The structural and electrochemical properties of the Si/Ag nanocomposite electrodes are investigated via transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and cycler. The TEM and XRD results show that crystalline Ag nano-dots (∼5-9 in size) are well-dispersed within an amorpohous Si matrix. It is shown that the Si/Ag nanocomposite electrode shows much better structural stability than the Si only sample. It is also shown that the Si/Ag nanocomposite electrode shows superior capacity retention compared to the Si only electrode. The results indicate that the presence of the Ag nano-dots is important minimizing the formation of cracks in the electrode, so leading to the better life-time for thin-film Li rechargeable batteries.

Original languageEnglish
Pages (from-to)8199-8203
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume10
Issue number12
DOIs
Publication statusPublished - 2010 Dec 1

Fingerprint

Secondary batteries
lithium batteries
Electrochemical properties
Lithium
Structural properties
Nanocomposites
Electrodes
Thin films
electrodes
nanocomposites
thin films
Transmission Electron Microscopy
X-Ray Diffraction
electric batteries
Transmission electron microscopy
X ray diffraction
transmission electron microscopy
structural stability
diffraction
Field emission

Keywords

  • Ag nanostructures
  • Co-sputtering
  • Insertion/extraction
  • Li rechargeable batteries
  • Reversible capacity
  • Si

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Science(all)
  • Bioengineering
  • Biomedical Engineering

Cite this

Structural and electrochemical properties of Ag nano-dots combined amorphous Si electrodes for thin-film lithium rechargeable batteries. / Ahn, Hyo Jin; Kim, Youn Su; Shim, Hee Sang; Park, Byung Kyu; Moon, Won Jin; Kim, Won Bae; Seong, Tae Yeon.

In: Journal of Nanoscience and Nanotechnology, Vol. 10, No. 12, 01.12.2010, p. 8199-8203.

Research output: Contribution to journalArticle

Ahn, Hyo Jin ; Kim, Youn Su ; Shim, Hee Sang ; Park, Byung Kyu ; Moon, Won Jin ; Kim, Won Bae ; Seong, Tae Yeon. / Structural and electrochemical properties of Ag nano-dots combined amorphous Si electrodes for thin-film lithium rechargeable batteries. In: Journal of Nanoscience and Nanotechnology. 2010 ; Vol. 10, No. 12. pp. 8199-8203.
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AU - Moon, Won Jin

AU - Kim, Won Bae

AU - Seong, Tae Yeon

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