Journal
ELECTROCHEMICAL AND SOLID STATE LETTERS
Volume 10, Issue 9, Pages A216-A219Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.2750439
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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 (LiCoO2/ Li) could be achieved. With these reasons, the capacity of the unit cell based on the electrolyte containing 2 wt % VS could maintain about 0% of the initial capacity after 200 cycles at a high charge/ discharge current density (C/2, 1.25 mA cm(-2)). (c) 2007 The Electrochemical Society.
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