Ovonic Battery Company, Inc.

Energy Conversion Devices, Inc.

Texaco Ovonic Fuel Cell LLC

Ovonic Fuel Cell Company LLC

Energy Power Systems LLC

Texaco Ovonic Battery Systems, LLC

Ovonie Fuel Cell LLC

Texaco Ovoric Fuel Cell, LLC

Texaco Ovonic Fuel Cell Uc

Ovanic Battery Company, Inc.

Srinivasan Venkatesan

Stanford R Ovshinsky

Subhash K Dhar

Boyko Aladjov

Hong Wang

Thomas J Hopper

Kevin Fok

Arthur Holland

Zdravko Menjak

Michael A Fetcenko

Krishna Sapru

Kenneth Laming

Lin R Higley

Dennis A Corrigan

Philippe Gow

Donn Fillmore

Anthony Osgood

Ronald Himmler

Nick Karditsas

Rosa T Young

Bora Tekkanat

Meera Vijan

Benjamin Reichman

Ned T Stetson

Rajeev Puttaiah

Binay Prasad

Krishnaswamy Rangaswamy

Ana Menjak

Latchezara M Gradinarova

Boyko Alajov

Cristian Fierro

Herbert C Ovshinsky

Kuochih C Hong

James L Strebe

Kevin Dean

Standford R Ovshinsky

Fabio Albano

Stanford R Ovhsinsky

Erik W Anderson

Lynn Taylor

Subnash Dhar

Ken Laming

George Burke

Tom Hopper

Michael Marchio

Naum Pinsky

Zdravjo Menjak

A metal alloy for use in a wire included in an electrochemical cell is disclosed having an amorphous structure, microcrystalline grains, or grains that are sized less than about one micron. In various embodiments, the microcrystalline grains are not generally longitudinally oriented, are variably oriented, or are randomly oriented. In some embodiments, the microcrystalline grains lack uniform grain size or are variably sized. In some embodiments, the microcrystalline grains have an average grain size of less than or equal to 5 microns. In some embodiments, the metal alloy lacks long-range crystalline order among the microcrystalline grains. In some embodiments, the wire is used in a substrate used in the electrochemical cell. In some embodiments, the metal alloy is formed using a co-extrusion process comprising warming up the metallic alloy and applying pressure and simultaneously passing a core material through a die to obtain a composite structure.

Metallic alloys having amorphous, nano-crystalline, or microcrystalline structure

A hybrid fuel cell/battery including one or more electrochemical cell units comprising at least one cathode, at least one anode, and at least one auxiliary electrode. The auxiliary electrode works in combination with the anode to provide a current as a rechargeable battery while the anode and cathode work in combination to provide an electrical current as a fuel cell. The cathode and the auxiliary electrode may operate alone or in tandem to provide an electrical current.

Hybrid fuel cell

The present invention discloses a fuel cell having at least one bi-cell. The bi-cells may be stacked in series to achieve a desired power output. Each bi-cell is a unit cell comprising two hydrogen electrodes, two air/oxygen electrodes, two electrolyte distributors and a gas diffuser. The hydrogen electrodes are disposed adjacent to one another and the air/oxygen electrodes are disposed on the outside ends of the hydrogen electrodes. An electrolyte distributor is disposed between each adjacently set hydrogen electrode and air/oxygen electrode. A gas diffuser/distributor is disposed between the hydrogen electrodes. An elastomeric material is injected between the electrodes and distributors to provide mechanical stability. Further, the entire bi-cell is overmolded with an elastomeric material. Ribs are set in the distributors to prevent the elastomeric material from flowing into areas designed for electrolyte flow, hydrogen flow and mechanical restraints and to promote uniform spacing between the various components. When the bi-cell units are stacked and secured, sufficient openings for air are formed to allow air to contact the air/oxygen electrodes.

Air breathing fuel cell having bi-cell unit cells

An active composition for an electrode of an electrochemical cell. The active composition comprises an active electrode material and a conductive polymer. The electrochemical cell is preferably a battery cell or a fuel cell.

Active electrode composition with conductive polymeric binder

Mechanically and thermally improved rechargeable batteries, modules and fluid-cooled battery pack systems. The battery is prismatic in shape with an optimized thickness to width to height aspect ratio which provides the battery with balanced optimal properties when compared with prismatic batteries lacking this optimized aspect ratio. The fluid-cooled battery pack includes; 1) a battery-pack case having coolant inlet and outlet; 2) battery modules within the case such that the battery module is spaced from the case walls and from other battery modules to form coolant flow channels along at least one surface of the bundled batteries; and 3) at least one coolant transport means. The width of the coolant flow channels allows for maximum heat transfer.

Mechanical and thermal improvements in metal hydride batteries, battery modules, and battery packs

A conductive additive for the positive nickel electrode for electrochemical cells which provides increased performance by suppressing an oxygen evolution reaction occurring parallel to the oxidation of nickel hydroxide, increasing conductivity of the electrode and/or consuming oxygen produced as a result of the oxygen evolution reaction.

Performance enhancing additive material for the nickel hydroxide positive electrode in rechargeable alkaline cells

A method and system for electrochemically purifying an impure stream of hydrogen. Hydrogen is absorbed into a gas diffusion anode from the impure hydrogen stream and oxidized to form hydrogen ions and electrons which are released into an alkaline solution. An electrolytic cathode also positioned in the alkaline solution decomposes water to form hydrogen and hydroxyl ions which combine with the hydrogen ions to maintain equilibrium of the system.

Method and apparatus for electrorefining impure hydrogen

A layered oxygen electrode incorporating a peroxide decomposition catalyst. The design of the oxygen electrode promotes oxygen dissociation and absorption within the oxygen electrode. The oxygen electrode has differing layers of hydrophobicity which allow chemical impregnation of the active catalyst material into the oxygen electrode where the active catalyst material is needed most.

Multi-layered oxygen electrode with peroxide decomposition catalyst

Fuel cell cathodes and instant startup fuel cells employing the cathodes. The cathodes operate through the valency change mechanism of redox couples which uniquely provide multiple degrees of freedom in selecting the operating voltages available for such fuel cells. Such cathodes provide the fuel cells in which they are used a 'buffer' or 'charge' of oxidizer available within the cathode at all times.

Fuel cell cathodes and their fuel cells

A complex aluminum hydride doped with a catalytic material adapted to increase the kinetics of hydrogen absorption/desorption of the aluminum hydride without reducing the hydrogen storage capacity of the aluminum hydride.

High capacity hydrogen storage material based on catalyzed alanates

Fuel cell oxygen electrode and instant startup fuel cells employing such oxygen electrode. The oxygen electrode operates through the mechanism of redox couples which uniquely provide multiple degrees of freedom in selecting the operating voltages available for such fuel cells. Such oxygen electrodes provide the fuel cells in which they are used a 'buffer' or 'charge' of oxidizer available within the oxygen electrode at all times.

Fuel cell cathode with redox couple

The present invention discloses a fuel cell, which incorporates a bipolar plate. The regenerative bipolar fuel cell of the present invention contains at least one hydrogen electrode in contact with a hydrogen stream and at least one oxygen electrode in contact with an oxygen stream. At least one electrolyte chamber is in contact with the hydrogen electrode and at least one electrolyte chamber is in contact with the oxygen electrode. The electrolyte chambers provide mechanical support within the fuel cell and provide an uninterrupted pathway for an electrolyte solution to contact the hydrogen electrode and the oxygen electrode, respectively. At least one bipolar plate is positioned between the hydrogen electrode and the oxygen electrode. The bipolar plate has a hydrogen side in contact with the hydrogen electrode and an oxygen side in contact with the oxygen electrode. The bipolar plate eliminates the need for electrode support frames within a fuel cell and provides an entire electrode in one epoxy frame that ensures the integrity of the different pieces while maintaining the different fluids to be available at the points of their respective reactions. In addition, the bipolar plate acts as a manifold for gas distribution and a gasket for sealing.

Regenerative bipolar fuel cell

A vehicle drive system powered by a hybrid fuel cell including at least one cathode, at least one anode, and at least one auxiliary electrode. The auxiliary electrode works in combination with the anode to provide a current as a rechargeable battery while the anode and cathode work in combination to provide an electrical current as a fuel cell. The cathode and the auxiliary electrode may operate alone or in tandem to provide an electrical current.

Drive system incorporating a hybrid fuel cell

A hybrid fuel cell/battery including at least one cathode, at least one anode, and at least one auxiliary electrode. The auxiliary electrode works in combination with the anode to provide a current as a rechargeable battery while the anode and cathode work in combination to provide an electrical current as a fuel cell. The cathode and the auxiliary electrode may operate alone or in tandem to provide an electrical current.

Growing community of inventors

Southfield, MI, United States of America

Srinivasan Venkatesan