Controlling surface morphology of Sn thin-film to enhance cycling performance in lithium ion batteries

Yuan Li, Ryo Matsuura, Masumi Saka

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

With a high Li storage capacity, Sn-based materials have attracted great attention as a prospective anode material for lithium ion batteries (LIBs). However, the poor cycling performance due to repetitive volume expansion/contraction during charge/discharge cycles has restricted the practical application of Sn-based materials. Here, a simple technique of controlling the surface morphology of Sn thin-film by modulating sputtering conditions was proposed to enhance the cycling performance of LIBs. Firstly, the dependence of surface morphology of Sn thin-film on sputtering conditions was systematically investigated. Secondly, variations in the cycling performance of these Sn thin-films were evaluated. Finally, insertion of Cu buffer between the Sn thin-film anode and the Cu foil current collector was proposed to induce particle refinement and therefore enhance the cycling performance. Such a concept can be extended to Si anode and be further combined with other methods to effectively improve the cycling performance of thin-film anode for LIBs.

Original languageEnglish
Pages (from-to)155-160
Number of pages6
JournalMaterials Research Bulletin
Volume87
DOIs
Publication statusPublished - 2017 Mar 1

Keywords

  • A. Thin films
  • B. Sputtering
  • C. Electrochemical measurements
  • C. Electron microscopy
  • D. Electrochemical properties

ASJC Scopus subject areas

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

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