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Niobium oxide compositions and methods for using same

United States Patent

8,647,773
February 11, 2014
View the Complete Patent at the US Patent & Trademark Office
The disclosure relates a niobium oxide useful in anodes of secondary lithium ion batteries. Such niobium oxide has formula Li.sub.xM.sub.1-yNb.sub.yNb.sub.2O.sub.7, wherein 0.ltoreq.x.ltoreq.3, 0.ltoreq.y.ltoreq.1, and M represents Ti or Zr. The niobium oxide may be in the form of particles, which may be carbon coated. The disclosure also relates to an electrode composition containing at least one or more niobium oxides of formula Li.sub.xM.sub.1-yNb.sub.yNb.sub.2O.sub.7. The disclosure further relates to electrodes, such as anodes, and batteries containing at least one or more niobium oxides of formula Li.sub.xM.sub.1-yNb.sub.yNb.sub.2O.sub.7. Furthermore, the disclosure relates to methods of forming the above.
Goodenough; John B. (Austin, TX), Han; Jian-Tao (Austin, TX)
Board of Regents, The University of Texas System (Austin, TX)
13/ 194,551
20120052401
July 29, 2011
STATEMENT OF GOVERNMENT INTEREST At least a portion of the present invention was developed using funding from the United States Department of Energy provided through Lawrence Berkley National Laboratory, Grant No. 6805919 MOD 8. The United States government has certain rights in the invention.