Patents by Inventor Allan E. Martin

Allan E. Martin 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).

  • Calcium alloy as active material in secondary electrochemical cell
    Patent number: 3980495
    Abstract: Calcium alloys such as calcium-aluminum and calcium-silicon, are employed as active material within a rechargeable negative electrode of an electrochemical cell. Such cells can use a molten salt electrolyte including calcium ions and a positive electrode having sulfur, sulfides, or oxides as active material. The calcium alloy is selected to prevent formation of molten calcium alloys resulting from reaction with the selected molten electrolytic salt at the cell operating temperatures.
    Type: Grant
    Filed: December 19, 1975
    Date of Patent: September 14, 1976
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Michael F. Roche, Sandra K. Preto, Allan E. Martin
  • Cathode composition for electrochemical cell
    Patent number: 3941612
    Abstract: A high-temperature, secondary electrochemical cell includes a negative electrode containing an alkali metal such as lithium, an electrolyte of molten salt containing ions of that alkali metal and a positive electrode containing a mixture of metallic sulfides. The positive electrode composition is contained within a porous structure that permits permeation of molten electrolyte and includes a mixture of about 5% to 30% by weight Cu.sub.2 S in FeS.
    Type: Grant
    Filed: March 4, 1975
    Date of Patent: March 2, 1976
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Robert K. Steunenberg, Allan E. Martin, Zygmunt Tomczuk