Patents by Inventor Dinggue Xia

Dinggue Xia has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of preparing Li.sub.x Mn.sub.2 O.sub.4 for lithium-ion batteries
    Patent number: 6110442
    Abstract: A method of preparing Li.sub.x Mn.sub.2 O.sub.4 for a secondary battery includes mixing lithium nitrate, magnanese nitrate and citric acid. A complex citrate solution is formed in the substantial absence of a polyhydroxyl alcohol. The complex citrate solution is dehydrated to produce a precursor. The precursor is then heated at a substantially constant rate and then calcined to provide a spinel compound.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: August 29, 2000
    Assignee: Hughes Electronics Corporation
    Inventors: Dinggue Xia, Qingguo Liu