Binder-free anode with porous Si/Cu architecture for lithium-ion batteries

Ting Huang, Dingyue Sun, Wuxiong Yang, Hailong Wang, Qiang Wu, Rongshi Xiao

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Binder-free porous Si/Cu architecture with the unique Cu walls wrapped Si/Cu porous network as lithium-ion battery anode was fabricated by laser remelting, diffusion bonding and dealloying processes. The porous network had enough space to allow for the large expansion of Si during lithation. The Cu walls and Cu skeletons could prevent loss of electrical contact between pulverized Si and current collector. The laser remelting influenced the Cu diffusion behavior during diffusion bonding, and was the most critical process for the fabrication of porous Si/Cu architecture.

Original languageEnglish
Pages (from-to)304-307
Number of pages4
JournalScripta Materialia
Volume146
DOIs
Publication statusPublished - 2018 Mar 15
Externally publishedYes

Keywords

  • Dealloying
  • Diffusion bonding
  • Laser treatment
  • Lithium-ion batteries
  • Silicon

ASJC Scopus subject areas

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

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