Gte Products Corporation

Gte Laboratories Incorporated

Gte Government Systems Corporation

Gte Communications Products Corporation

Whittaker Technical Products, Inc.

Robert C McDonald

Franz Goebel

Nikola Marincic

Peter Bayard Harris

Michael F Rubner

Peter Cukor

Peter F Morello

Ronald E Barth

Wei-Tao Wang

James M Bennett

James Bennett

Kathy M Lechiaro

An electrochemical cell of the liquid cathode type has an anode made of non-solution alloy of lithium and a companion metal of manganese, silicon, molybdenum, or tungsten.

Electrochemical cell having non-solution lithium alloys

A material is provided which has a positive thermal coefficient of resistance. The material is made of nickel particles sintered in a plastic matrix. The material is suitable in internal elements of electrochemical cells.

Material suitable for thermal protection of electrochemical cells and

A primary electrochemical cell having an oxidizable active anode material, a cathode current collector, and an electrolytic solution comprising a liquid cathode material and an electrolyte solute dissolved therein. The cathode current collector includes a polymer selected from the group consisting of polyenes, polyphenylenes, polyheterocyclics, mixtures thereof, copolymers thereof, and cross linked polymers thereof.

Electrochemical cell

A primary electrochemical cell operative to provide a warning indication toward the end of discharge of the cell signalling an approaching end-of-life of the cell. The cell includes a tubular porous carbon cathode structure disposed within a metal housing of the cell together with an anode structure and an electrolytic solution. The anode structure includes first and second electrochemically active elements, for example, lithium and calcium, having different oxidation potentials within the cell and consumable by electrochemical action within the cell during discharge of the cell. The consumption of the active elements during discharge of the cell results in the establishment of different and distinguishable operating voltages for the cell. The active elements are arranged with respect to each other such that the active element of higher oxidation potential (i.e., the lithium) is consumed prior to the other active element (i.e., the calcium). The change in value of the operating voltage of the cell due to successive consumptions of the two active elements is detected to provide a warning indication signalling the approaching end-of-life of the cell.

A method for treating carbon-containing cathodes of a primary electrochemical cell for the purpose of reducing the gas pressure in the cell during open circuit and during discharge of the cell. The method of the invention includes purging the carbon-containing cathodes of the cell with sulfur dioxide or thionyl chloride gas to displace water and insoluble gases (oxygen and nitrogen, and argon or helium) entrapped within the carbon of the carbon-containing cathodes. The purge gas is soluble in an electrolytic solution including liquid thionyl chloride as is employed to activate the cell for use in discharge.

Method for reducing gas pressure in an electrochemical cell

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Stow, MA, United States of America

Robert C McDonald