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HIGH-POWER NANOCOMPOSITE CATHODES FOR LITHIUM ION BATTERIES

United States Patent Application

20130022873
A1
View the Complete Application at the US Patent & Trademark Office
A method of growing electrochemically active materials in situ within a dispersed conductive matrix to yield nanocomposite cathodes or anodes for electrochemical devices, such as lithium-ion batteries. The method involves an in situ formation of a precursor of the electrochemically active materials within the dispersed conductive matrix followed by a chemical reaction to subsequently produce the nanocomposite cathodes or anodes, wherein: the electrochemically active materials comprise nanocrystalline or microcrystalline electrochemically active metal oxides, metal phosphates or other electrochemically active materials; the dispersed conductive matrix forms an interconnected percolation network of electrically conductive filaments or particles, such as carbon nanotubes; and the nanocomposite cathodes or anodes comprise a homogeneous distribution of the electrochemically active materials within the dispersed conductive matrix.
von Bulow, Jon Fold (Soborg, DK), Zhang, Hong-Li (Goleta, CA), Morse, Daniel E. (Santa Barbara, CA)
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (Oakland CA)
13/ 553,366
July 19, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT [0006] This invention was made with Government support under the following grants: [0007] Grant No. W911NF-09-D-0001, awarded by Army Research Office via the Institute for Collaborative Biotechnologies (ICB), having as its principal investigator Daniel E. Morse; [0008] Grant No. DEFG02-02ER46006, awarded by the U.S. Dept. of Energy under "Biological and Biomimetic Low-Temperature Routes to Materials for Energy Applications", having as its principal investigator Daniel E. Morse; and [0009] Grant No. DE-SC0001009, awarded by the U.S. Dept. of Energy via the Center for Energy Efficient Materials (CEEM), having as its principal investigator Daniel E. Morse. [0010] The Government has certain rights in this invention.