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 language | English |
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Pages (from-to) | 216-219 |
Number of pages | 4 |
Journal | Electrochemical and Solid-State Letters |
Volume | 10 |
Issue number | 9 |
DOIs | |
State | Published - 2007 |