Artificial solid-electrolyte interphase (SEI) for improved cycleability and safety of lithium-ion cells for EV applications

S. Menkin, D. Golodnitsky, E. Peled*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Since the SEI is one of the most vulnerable factors in the safety of the lithium-ion battery, improvement in the stability of the SEI will result in a safer battery with better performance characteristics. In this work an artificial SEI was formed on graphite and tin-copper anodes by electropainting and vacuum-insertion techniques. The artificial SEI was found to stabilize the structure of the Sn-Cu anode and led to a cycle life for the cell that was longer by a factor of five and irreversible capacity less than half that of the pristine anode.

Original languageEnglish
Pages (from-to)1789-1791
Number of pages3
JournalElectrochemistry Communications
Volume11
Issue number9
DOIs
StatePublished - Sep 2009

Keywords

  • Anode
  • Electric-vehicle
  • Lithium ion battery
  • SEI
  • Safety
  • Tin

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