Si Based Anodes via Magnetron Sputtering for LIB

Polat B. D., ERYILMAZ O. L., Keleş Ö.

ECS ELECTROCHEMISTRY LETTERS, cilt.3, sa.6, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 3 Sayı: 6
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1149/2.009405eel
  • Dergi Adı: ECS ELECTROCHEMISTRY LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

The reversible cyclability of Si based anodes is greatly improved by tuning the atomic ratio of Cu/Si and the thickness of films fabricated via magnetron sputtering. High electrochemical performance is achieved when the thin film made of 10% at.Cu-90% at.Si is used. 1100 mAhg(-1) specific capacity is delivered after the 100th cycles with 99.7% Coulombic efficiency. This remarkable performance is the result of the amorphous structure and enhanced physical and mechanical properties of the thin film. (C) 2014 The Electrochemical Society. All rights reserved.