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SILICON-BASED ACTIVE MATERIALS FOR LITHIUM ION BATTERIES AND SYNTHESIS WITH SOLUTION PROCESSING

United States Patent Application

20140308585
A1
View the Complete Application at the US Patent & Trademark Office
Silicon based anode active materials are described for use in lithium ion batteries. The silicon based materials are generally composites of nanoscale elemental silicon with stabilizing components that can comprise, for example, silicon oxide-carbon matrix material, inert metal coatings or combinations thereof. High surface area morphology can further contribute to the material stability when cycled in a lithium based battery. In general, the material synthesis involves a significant solution based processing step that can be designed to yield desired material properties as well as providing convenient and scalable processing.
Han, Yongbong (San Francisco, CA), Masarapu, Charan (Fremont, CA), Deng, Haixia (Fremont, CA), Anguchamy, Yogesh Kumar (Newark, CA), Venkatachalam, Subramanian (Pleasanton, CA), Lopez, Herman A. (Sunnyvale, CA)
13/ 864,212
April 16, 2013
GOVERNMENT RIGHTS [0001] Development of the inventions described herein was at least partially funded with government support through U.S. Department of Energy grant ARPA-E-DE-AR0000034 and California Energy Commission grant ARV-09-004, and the U.S. government has certain rights in the inventions.