Si Based Anodes via Magnetron Sputtering for LIB


Polat B. D., ERYILMAZ O. L., Keleş Ö.

ECS ELECTROCHEMISTRY LETTERS, vol.3, no.6, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 3 Issue: 6
  • Publication Date: 2014
  • Doi Number: 10.1149/2.009405eel
  • Journal Name: ECS ELECTROCHEMISTRY LETTERS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Istanbul Technical University Affiliated: Yes

Abstract

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.