Eveready Battery Company, Inc.

Frank H Feddrix

Richard A Langan

Gary R Tucholski

John C Bailey

Guanghong Zheng

Abdelkader Hilmi

Andrew Webber

Mark A Schubert

Jing Zhang

Scott W Donne

Frank B Tudron

Martin Devenney

Wayne E Uren

Kelvin B Belle

Robert M Estanek

A flat, flexible electrochemical cell is provided. The within invention describes various aspects of the flat, flexible electrochemical cell. A printed anode is provided that obviates the need for a discrete anode current collector, thereby reducing the size of the battery. An advantageous electrolyte is provided that enables the use of a metallic cathode current collector, thereby improving the performance of the battery. Printable gelled electrolytes and separators are provided, enabling the construction of both co-facial and co-planar batteries. Cell contacts are provided that reduce the potential for electrolyte creepage in the flat, flexible electrochemical cells of the within invention.

Flexible thin printed battery and device and method of manufacturing same

An active manganese dioxide electrode material that exhibits improved electrochemical performances compared with conventional manganese dioxide materials includes at least one dopant. The doped manganese dioxide electrode materials may be produced by a wet chemical method (CMD) or may be prepared electrolytically (EMD) using a solution containing manganese sulfate, sulfuric acid, and a dopant, wherein the dopant is present in an amount of at least about 25 ppm.

Doped manganese dioxides

The invention is a battery with power output terminals on opposite ends of a battery and a power output terminal on the side wall of the battery that has the same polarity as one of the end power output terminals. The presence of the side terminal is indicative of a battery characteristic and allow a battery operated device requiring that characteristic to selectively use the battery when designed to use the side terminal and opposite polarity end terminal to provide energy to operate the device. Because the battery also has opposite polarity end terminals, the battery can be used in devices designed to use batteries of the same dimensions and having the same nominal voltage. The location of the side terminal can also be indicative of additional battery characteristics, allowing the selective use of batteries in devices based on various device requirements.

Battery with side terminal

The cathode of a primary alkaline battery is composed of electrode grade manganese dioxide containing Zr.

Cathode materials for primary batteries

A tabless battery housed in a sealed package is provided. The packaging material for the battery comprises a conductive material and a sealing material. At least a portion of the interior surface of the conductive material is exposed to form an internal contact between at least one electrode and the conductive material. At least a portion of the exterior surface of the conductive material is also exposed to form an external contact between the electrode and the device.

Flexible thin battery and method of manufacturing same

Alloys of rare earth metals and other metals are made in an electrolytic process.

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Westlake, OH, United States of America

Frank H Feddrix