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Assignee: Duracell International Inc.


Location: Bethel, CT
No. of patents: 29

NumberTitleIssue Date
4401735Non-aqueous Li/MnO2 cell
A non-aqueous Li/MnO2 cell having an electrolyte which improves the capacity thereof and which consists of an electrolyte salt such as LiClO4 dissolved in 1,3 dioxolane....
08/30/1983
4366212Non-aqueous cell with fluid cathode depolarizer and corrodible cathode
A non-aqueous cell containing a corrosive fluid cathode depolarizer such as thionyl chloride (SOCl2) and a metal cathode such as of cold rolled steel which is substantially corroded by said fluid depolarizer with the cell having improved high r...
12/28/1982
4364800Situ metal plating of the cathode terminal surface of an electrochemical cell
A process for plating a metal, preferably gold, onto the exposed surface of a cathode terminal of an electrochemical cell. The cell is contacted with a solution containing the metal ions to be plated thereon. The cell is then permitted to self-discharge t...
12/21/1982
4332870Cell having a gelled anode containing a polyhydric alcohol
A method for forming a gelled anode in which a powdered anode metal is mixed with means for maintaining a uniform mixture of the powdered metal and a gelling agent, the gelling agent is added, and the mixture is fed into an aqueous electrolyte in the cell...
06/01/1982
4328288Method for improving stability of Li/MnO2 cells
A method for improving the stability of Li/MnO2 cells having organic electrolytes subject to gaseous decomposition and a manganese dioxide cathode having absorbed water therein in excess of crystalline bound water, with said manganese dioxide a...
05/04/1982
4326014High temperature organic electrolyte cells
An anode coating for anhydrous electrochemical generating cells is disclosed wherein the anode active material is immersed in an electrolyte solution and coated with the insoluble reaction product of the anode metal with an inhibiting reactant such as CO
04/20/1982
4325106One piece battery holder
A battery holder comprising a drawer having a plurality of compartments, each sized to accommodate a single battery, each compartment being polarized so that a battery can be placed therein only in a predetermined position, means for electrically intercon...
04/13/1982
4321314Non-aqueous cell safety
The safety of a cell such as a Li/MnO2 cell is improved by complexing the volatile electrolyte solvent normally used therein with the electrolyte salt whereby efficient solvation of the salt is obtained without detrimental free volatile solvent...
03/23/1982
4319122Synchronous arrangement and method for heat treating workpieces
A method and arrangement for spot welding the anode structure of a succession of alkaline primary batteries with a focused beam of radiation generated by a stationary laser as the batteries are conveyed through the arrangement. The batteries are conducted...
03/09/1982
4316777Rechargeable nonaqueous silver alloy anode cell
A secondary electrochemical cell comprising a solid anode, an electrolyte and a cathode. The anode is a solid solution of silver and a metal which is an alkaline or alkali earth metal. The metal is capable of forming a solid solution with the anode on the...
02/23/1982
4315062Method for the manufacture of a polystyrene separator and cell
A method of forming a polystyrene separator for use in an electrochemical cell comprising the steps of dissolving the polystyrene resin in a solvent, placing a predetermined amount of the resulting polystyrene solution directly on the surface of a cathode...
02/09/1982
4307157Treatment of titanium disulfide for battery applications
Commercially available titanium disulfide is treated with an oxidizing agent such as iodine (I2) prior to use as a cathode material in an electrochemical cell with the treated titanium disulfide providing superior discharge characteristics....
12/22/1981
4299890Solid state cell
A solid state ambient temperature cell having a thin layer of an alkali or alkaline earth metal as anode, a thin layer of a solid ionic conductive electrolyte and a thin cathode layer of a metal or metalloid which can accommodate anode cations in the crys...
11/10/1981
4299435Fuse receptacle
A receptacle for replaceably holding a replaceable fuse in an electrical circuit includes a forwardly inwardly tapered tubular member closed at its front end by a contact-defining metal cap and provided at its rear end with an internally threaded enlarged...
11/10/1981
4298663Predischarged nonaqueous cell
An electrochemical cell containing a decomposing electrolyte solvent, further contains small amounts of an additive material such as lithium sulfide which causes partial self discharge of the cathode of the cell with non-reactive products. The self discha...
11/03/1981
4298506Method of treating silver oxide powder and the product formed therefrom
A silver oxide powder for use in the cathode of an alkaline silver oxide galvanic cell, being a mixture of at least 10% divalent silver oxide powder together with monovalent silver oxide powder, is produced by at least partially reducing the silver oxide ...
11/03/1981
4297249Method of treating silver oxide powder and the product formed therefrom
A silver oxide powder for use in the cathode of an alkaline silver oxide galvanic cell, being a mixture of at least 10% divalent silver oxide powder together with monovalent silver oxide powder, is produced by at least partially reducing the silver oxide ...
10/27/1981
4296461Battery package with DC to DC converter
A battery package having a casing which contains at least one electrochemical cell electrically connected to a DC to DC converter. A pair of electrical connections are located on the casing to electrically connect the battery package to a load. The conver...
10/20/1981
4295705One piece connector
A one piece connector, as for a battery, comprising a connecting means having an integral bottom wall with a boss extending from the bottom wall, the boss being formed of continuous material. A connector assembly in which the said one piece connector is a...
10/20/1981
4292383Bilevel rechargeable cell
A cell having an anode, a cathode, barrier means between the cathode and anode, and an electrolyte in contact with all the elements of the cell, the cathode being formed from a mixture of monovalent silver oxide and nickel. The cathode can also be formed ...
09/29/1981
4288913Method of forming in situ gelled anode
A method for forming a gelled anode in which a powdered anode metal is mixed with means for maintaining a uniform mixture of the powdered metal and a gelling agent, the gelling agent is added, and the mixture is fed into an aqueous electrolyte in the cell...
09/15/1981
4279972Non-aqueous electrolyte cell
A non-aqueous electrolyte cell particularly one containing a beta manganese dioxide cathode wherein the cathode is normally rigorously heat treated to drive off contained water. The heat treatment is substantially reduced or eliminated (allowing up to 2% ...
07/21/1981
4278744Expandable casing for electro-chemical cells
An expandable air-impermeable casing for an electrochemical cell comprised of complemental flexible casing sections of a material which provides a diffusion barrier to atmospheric contaminants. The casing provides an expandable compartment for containment...
07/14/1981
4268894Portable waterproof fluorescent lantern
A portable waterproof fluorescent lantern having a case impervious to the entry of water, a fluorescent lamp within the case, a self-contained power source within the case for powering the lamp and means for activating the power source which is waterproof...
05/19/1981
4265984Battery housing
A battery housing formed of at least two sections. Two means of terminating the housing are associated with the housing. One means includes a terminal member and a conductive element. The element is substantially the same length as the housing. The second...
05/05/1981
4264689Additive for electrochemical cell stability
A nonaqueous electrochemical cell and a method for the construction thereof wherein the cell contains a metal salt additive such as lithium nitrate (LiNO3) or calcium nitrate Ca(NO3)2 which reduces the reactivity of substa...
04/28/1981
4264687Fluid depolarized cell
A fluid depolarized cell containing an inert cathode with finely divided metal powder dispersed within said cathode. The metal powder such as nickel powder catalyzes the reaction of unstable decomposition products of the fluid depolarizer into more stabl...
04/28/1981
4263377Cathodes for primary solid state lithium cells
High energy density primary solid state cells using cathode materials of ionically and electronically conductive dischargeable compounds in combination with other non-conductive cathode active materials of higher energy density....
04/21/1981
4258109Solid state cells
High energy density solid state cells using cathode materials of ionically and electronically conductive dischargeable compounds in combination with other non-conductive cathode active materials of higher energy density....
03/24/1981
 
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