Title

Two-dimensional SiOx as a high performance Li storage material prepared by solution evaporation induced interfacial sol-gel reaction

RIS ID

105860

Publication Details

Yoo, H., Park, E., Bae, J., Lee, J., Park, M. S., Jo, Y. N., Kim, J., Dou, S. X., Kim, Y. J. & Kim, H. (2016). Two-dimensional SiOx as a high performance Li storage material prepared by solution evaporation induced interfacial sol-gel reaction. 18th International Meeting on Lithium Batteries (pp. 1-1). Pennington, New Jersey: The Electrochemical Society.

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18th International Meeting on Lithium Batteries

Abstract

Si based anode materials for lithium-ion batteries have gained much attention due to its high theoretical capacity (3,580 mAhg-1). However, Si anode materials have critical limit for their commercial use because of their poor cycle performance associated with severe volume changes during cycling. In this work, we synthesized a two-dimensional(2D) SiOx material by solution evaporation induced interfacial sol-gel reaction. This synthesis method is simple, cost-effective and scalable. The resulting 2D SiOx material showed stable cycle performance with reversible capacity of about 650 mAhg-1 even at a high current density of 50 C (50 A g-1). More detailed analysis of two-dimensional SiOx materials will be discussed in this presentation.

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