Effects of vacuum annealing on the chargedischarge characteristics of eutectic AlSi/Al thin film as anode material for li-ion batteries

Chao Han Wu, Truan-Sheng Lui, Fei-Yi Hung, Li Hui Chen

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this study, radio frequency magnetron sputtering was used to prepare eutectic AlSi/ Al bi-layered films as anode materials and the effect of vacuum annealing in the chargedischarge capacity characteristics at different temperatures were discussed. For the purpose of 400nm AlSi film can possess the lowest crystallization temperature, the eutectic composition was adopted. The pre-sputtered 40nm Al thin film not only reduced the resistivity of the composite anode film, but also diffused to prevent peeling between the AlSi films and Cu foils after vacuum annealing. While the annealing temperatures were elevated (RT ̃ 400°C), indexes of crystalline (IOC) and resistivities of specimens were changed. The properties of materials containing ASEC-400 (at RT) and AS EC-200 (at 55°C) had outstanding chargedischarge characteristics. The morphology transformation at the surface and cross section resulted from annealing at different temperatures and cycling testing were examined by Focus Ion Beam (FIB). Besides, the relationship between cycling performances and electrochemical characteristics of AlSi/ Al film anodes were also investigated by Cyclic Voltammetry and Electrochemical AC Impedance Spectroscopy (EIS).

Original languageEnglish
Pages (from-to)1669-1673
Number of pages5
JournalMaterials Transactions
Volume53
Issue number9
DOIs
Publication statusPublished - 2012 Oct 5

Fingerprint

eutectics
Eutectics
electric batteries
Anodes
anodes
Vacuum
Annealing
Thin films
vacuum
annealing
thin films
ions
Temperature
cycles
electrical resistivity
peeling
Peeling
temperature
Crystallization
Magnetron sputtering

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

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title = "Effects of vacuum annealing on the chargedischarge characteristics of eutectic AlSi/Al thin film as anode material for li-ion batteries",
abstract = "In this study, radio frequency magnetron sputtering was used to prepare eutectic AlSi/ Al bi-layered films as anode materials and the effect of vacuum annealing in the chargedischarge capacity characteristics at different temperatures were discussed. For the purpose of 400nm AlSi film can possess the lowest crystallization temperature, the eutectic composition was adopted. The pre-sputtered 40nm Al thin film not only reduced the resistivity of the composite anode film, but also diffused to prevent peeling between the AlSi films and Cu foils after vacuum annealing. While the annealing temperatures were elevated (RT ̃ 400°C), indexes of crystalline (IOC) and resistivities of specimens were changed. The properties of materials containing ASEC-400 (at RT) and AS EC-200 (at 55°C) had outstanding chargedischarge characteristics. The morphology transformation at the surface and cross section resulted from annealing at different temperatures and cycling testing were examined by Focus Ion Beam (FIB). Besides, the relationship between cycling performances and electrochemical characteristics of AlSi/ Al film anodes were also investigated by Cyclic Voltammetry and Electrochemical AC Impedance Spectroscopy (EIS).",
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Effects of vacuum annealing on the chargedischarge characteristics of eutectic AlSi/Al thin film as anode material for li-ion batteries. / Wu, Chao Han; Lui, Truan-Sheng; Hung, Fei-Yi; Chen, Li Hui.

In: Materials Transactions, Vol. 53, No. 9, 05.10.2012, p. 1669-1673.

Research output: Contribution to journalArticle

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