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MESOPOROUS SILICON SYNTHESIS AND APPLICATIONS IN LI-ION BATTERIES AND SOLAR HYDROGEN FUEL CELLS

United States Patent Application

*** PATENT GRANTED ***
20150017569
9,656,243
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
We provide a mesoporous silicon material (PSi) prepared via a template-free and HF-free process. The production process is facile and scalable, and it may be conducted under mild reaction conditions. The silicon may be produced directly by the reduction of a silicon-halogenide precursor (for example, SiCl.sub.4) with an alkaline alloy (for example, NaK alloy). The resulting Si-salt matrix is then annealed for the pore formation and crystallite growth. Final product is obtained by removal of the salt by-products with water.
Wang, Donghai (State College, PA), Dai, Fang (State College, PA), Yi, Ran (State College, PA), Zai, Jianto (State College, PA)
14/ 328,136
July 10, 2014
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] This invention was made with government support under Grant No. DE-AC02-05CH11231, awarded by the Department of Energy. The Government has certain rights in the invention.