Union Carbide Corporation

Harry Vourlis

Theodore R Beatty

Demetrios V Louzos

James R Akridge

A galvanic cell employing a gasket made of an electrically non-conducting material and having a groove in each of the upper and lower surfaces. A first cover has a peripheral skirt positioned and secured inside the groove in the upper surface of the gasket and a second cover has a peripheral skirt positioned and secured inside the groove in the lower surface of the gasket thereby providing a sealed cell.

Double-grooved gasket for galvanic cells

A method for manufacturing solid state electrochemical cells comprising isostatically compressing a cell subassembly comprising a malleable metal anode at a pressure of between about 10,000 and 100,000 psi.

Isostatic compression method for producing solid state electrochemical

Charge transfer complex cathodes for use in solid state cell systems wherein the cathodes are the reaction products of at least one halogen such as iodine or bromine with poly(N-vinylpyrrolidone).

Charge transfer complex cathodes for solid electrolyte cells

Polymer films, such as polypropylene and polyethylene, having improved surface adhesion characteristics and produced by subjecting conventional polymer films to a heat treatment followed by a corona treatment at an energy density-to-film surface of at least 9 watt-minutes/ft..sup.2.

Heat-treated, corona-treated polymer bodies and a process for producing

An alkaline cell is described wherein at least a pair of flat electrode elements of opposite polarity having a porous separator containing the alkaline electrolyte interposed therebetween are arranged in the form of a conventional electrode stack assembly, and wherein the electrode assembly is enclosed within a sealed, liquid-impervious plastic film envelope having a positive, negative and a third terminal connection in the walls thereof, each terminal connection comprising flat internal and external current collectors disposed adjacent to the inner and outer sides respectively of the walls overlying openings therein, the collectors being tightly adhered to the respective sides of the walls by thin layers of an adhesive sealant which is non-wettable by the alkaline electrolyte. Means are provided for making electrical connection between the current collectors through the openings in the walls of the envelope.

Alkaline cell with double collector positive, negative and third

A flat alkaline cell is described wherein an electrode assembly including at least a pair of flat electrode elements of opposite polarity having a porous separator containing an alkaline electrolyte interposed therebetween and a current collector disposed adjacent to and in electrical connection with one of the pair of electrode elements at one end of the electrode assembly, are enclosed within a sealed, liquid impervious plastic film envelope having an opening in one wall thereof which exposes at least a portion of the current collector for making external electrical connection therewith, and wherein a layer of an adhesive sealant which is non-wettable by the alkaline electrolyte, tightly adheres and seals together the current collector and the wall of the envelope at least around the periphery of the opening. The exposed portion of the current collector constitutes a first terminal connection to which a wire lead or the like may be attached. A second and third terminal connection are provided in the sealed envelope, the former being in electrical connection with the other of the pair of electrode elements of opposite polarity and the latter being in electrical connection with an auxiliary electrode.

Growing community of inventors

Lakewood, OH, United States of America

Harry Vourlis