Patents by Inventor Brian A. Nevett

Brian A. Nevett 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).

  • Cathode material for alkali-metal rechargeable cell
    Patent number: 4579724
    Abstract: A low-temperature synthesis of M.sup.II PS.sub.3 (M preferably Fe, Co or Ni) comprises mixing M.sup.2+ cation with P.sub.2 S.sub.6.sup.4- anion; if insoluble, M.sup.II PS.sub.3 precipitates; otherwise, M.sup.2+ cation can be supplied off an M.sup.2+ -cation-exchange resin through which Na.sub.4 P.sub.2 S.sub.6 solution is trickled. The product is X-ray amorphous, and is brought to a desirable degree of partial order by heating at 350.degree. C. for 3 hours. In this form it can reversibly intercalate lithium and, mixed with binder and graphite, is a cathode for a lithium rechargeable cell.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: April 1, 1986
    Assignee: National Research Development Corporation
    Inventors: Peter J. S. Foot, Brian A. Nevett