Patents by Inventor Richard J. Hobson

Richard J. Hobson 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).

  • Electrochemical cell
    Patent number: 5441832
    Abstract: A secondary cell includes as its active cathode material a first insertion material, such as V.sub.6 O.sub.13, into which ions are inserted during discharge. To prevent irreversible lattice changes leading to a decline in capacity the discharge should be terminated before a threshold cell voltage is crossed. Such irreversible changes are suppressed by including in a surface coating of the cathode a minor proportion of a second insertion material, such as a titanium oxide, whose discharge commences before the threshold cell voltage is reached.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: August 15, 1995
    Assignee: United Kingdom Atomic Energy Authority
    Inventors: William J. Macklin, Andrew Davies, Richard J. Hobson