Changes of electro-deposited Sn-Ni alloy thin film for lithium ion battery anodes during charge discharge cycling

H. Mukaibo, T. Momma, T. Osaka

Research output: Contribution to journalArticlepeer-review

90 Citations (Scopus)

Abstract

We have reported in our past work that electrodeposited Sn-Ni alloy with different composition show considerably different performance as anode materials for Li-ion batteries, and the performance was remarkably well (ca. 650 mAh g-1 at 70th cycle) when the composition was controlled to Sn 62Ni38. In this work, structural changes during charge discharge cycling of Sn-Ni alloy with different composition were investigated to evaluate their differences in the cycle performance. From the XRD result, Ni3Sn4 phase was the main phase seen in Sn 62Ni38, and its reversible reactivity with Li was confirmed. We suggest that this is the key phase for its high capacity and lengthened cycle life. From Sn54Ni46, which showed low capacity, only a metastable phase close to the structure of SnNi was confirmed. The results from Sn84Ni16 indicated the presence of pure Sn and Sn rich metastable phase would lead to relatively fast electrode degradation.

Original languageEnglish
Pages (from-to)457-463
Number of pages7
JournalJournal of Power Sources
Volume146
Issue number1-2
DOIs
Publication statusPublished - 2005 Aug 26

Keywords

  • Anode
  • Electrodeposition
  • Sn-Ni alloy

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Changes of electro-deposited Sn-Ni alloy thin film for lithium ion battery anodes during charge discharge cycling'. Together they form a unique fingerprint.

Cite this