Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 12, Pages 9608-9613Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am5019429
Keywords
anode; hydrogen silsesquioxane; lithium ion batteries; nanoparticles; silicon; silicon oxides
Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2012R1A1A2044422]
- Hanyang University [HY-2012-T]
- Energy Efficiency & Resources Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Ministry of Trade, Industry & Energy, Republic of Korea [20132020000260]
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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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