A novel nano-structured Si-Cu2O composite electrode for high-capacity lithium-ion battery

Ruoxu Lin, Shichao Zhang, Guanrao Liu, Zhijia Du, Libin Kang

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

An improved structure of nano-sized Si-Cu2O composite material has been obtained employing solvothermal method. The enhanced silicon-copper electrode of higher conductivity has been produced by further electrochemical reduction. The charge-discharge curves, cycling performance were analyzed in detail. The first charge/discharge profile behaviour of silicon-cuprous oxide was also discussed. The composite electrode can accommodate the serious volume expansion of silicon nano particles and strengthen the electrical contact between active silicon and copper foil substrate. The electrode exhibits a high efficiency of 97.9% in 57th cycle afterwards and a capacity retention of 80.2% after 60 cycles with an average fading ratio of ~0.33%.

Original languageEnglish
Pages (from-to)8019-8029
Number of pages11
JournalInternational Journal of Electrochemical Science
Volume8
Issue number6
StatePublished - Jun 2013
Externally publishedYes

Keywords

  • Anode
  • Cuprous oxide
  • Lithium-ion battery
  • Silicon

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