Effects of triacetoxyvinylsilane as SEI layer additive on electrochemical performance of lithium metal secondary battery

Yong Min Lee, Jeong Eun Seo, Young Gi Lee, Sang Hyo Lee, Kuk Young Cho, Jung Ki Park

Research output: Contribution to journalArticlepeer-review

66 Scopus citations

Abstract

The effects of a solid electrolyte interface (SEI) additive, triacetoxyvinylsilane (VS), on the electrochemical performance of a lithium metal secondary battery were investigated. When 2 wt % VS was added to the electrolyte, no lithium dendrite on the lithium metal surface after precycling was observed and thereby the lowest interfacial resistance of the unit cell (LiCo O2 Li) could be achieved. With these reasons, the capacity of the unit cell based on the electrolyte containing 2 wt % VS could maintain about 80% of the initial capacity after 200 cycles at a high charge/discharge current density (C/2, 1.25 mA cm-2).

Original languageEnglish
Pages (from-to)216-219
Number of pages4
JournalElectrochemical and Solid-State Letters
Volume10
Issue number9
DOIs
StatePublished - 2007

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