Title

Hydrogen silsequioxane-derived Si/SiOx nanospheres for high-capacity lithium storage materials

RIS ID

91791

Publication Details

Park, M., Park, E., Lee, J., Jeong, G., Kim, K., Kim, J., Kim, Y. & Kim, H. (2014). Hydrogen silsequioxane-derived Si/SiOx nanospheres for high-capacity lithium storage materials. ACS Applied Materials and Interfaces, 6 (12), 9608-9613.

Abstract

Si/SiOx composite materials have been explored for their commercial possibility as high-performance anode materials for lithium ion batteries, but suffer from the complexity of and limited synthetic routes for their preparation. In this study, Si/SiOx nanospheres were developed using a nontoxic and precious-metal-free preparation method based on hydrogen silsesquioxane obtained from sol-gel reaction of triethoxysilane. The resulting Si/SiOx nanospheres with a uniform carbon coating layer show excellent cycle performance and rate capability with high-dimensional stability. This approach based on a scalable sol-gel reaction enables not only the development of Si/SiOx with various nanostructured forms, but also reduced production cost for mass production of nanostructured Si/SiOx.

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Link to publisher version (DOI)

http://dx.doi.org/10.1021/am5019429