Ovonic Battery Company, Inc.

Energy Conversion Devices, Inc.

Texaco Ovonic Fuel Cell LLC

Ovonic Fuel Cell Company LLC

Texaco Ovonic Battery Systems, LLC

Ovonie Fuel Cell LLC

Texaco Ovoric Fuel Cell, LLC

Texaco Ovonic Fuel Cell Uc

Boyko Aladjov

Srinivasan Venkatesan

Stanford R Ovshinsky

Subhash K Dhar

Kevin Fok

Thomas J Hopper

Hong Wang

Zdravko Menjak

Rosa T Young

Bora Tekkanat

Meera Vijan

Latchezara M Gradinarova

Ana Menjak

Krishna Sapru

Kenneth Laming

Rajeev Puttaiah

Binay Prasad

Standford R Ovshinsky

Stanford R Ovhsinsky

Tom Hopper

Lynn Taylor

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

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

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 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.

A fuel cell utilizing parallel flow of a hydrogen stream, an oxygen stream, and an electrolyte solution with respect to the electrodes, while maintaining mechanical support within the fuel cell. The fuel cell utilizes electrode assemblies having a frame overmolded around the electrode to maintain a flow rates and low pressure throughout the fuel cell. The fuel cell is also designed to maintain mechanical support within the fuel cell while the electrodes expand and contract in response to the absorption of oxygen and hydrogen.

Fuel cell with overmolded electrode assemblies

A fluorinated carbon based gas diffusion layer for use in hydrogen and oxygen electrodes. The fluorinated carbon based gas diffusion layer provides for uniform distribution of hydrogen or oxygen across the electrode while maintaining a high level of hydrophobicity within the gas diffusion layer.

Electrode utilizing fluorinated carbon

A fuel cell utilizing parallel flow of a hydrogen stream, an oxygen stream, and an electrolyte solution with respect to the electrodes, while maintaining mechanical support within the fuel cell. The fuel cell contains multiple layers of electrodes which absorb and react hydrogen and oxygen. The fuel cell is designed to maintain mechanical support within the fuel cell while the electrodes expand and contract in response to the absorption of oxygen and hydrogen. The design of the fuel cell provides a substantially more compact design by not requiring space to allow for the expansion and contraction of the electrodes within the fuel cell.

Parallel flow fuel cell

A fuel cell utilizing parallel flow of a hydrogen stream, an oxygen stream, and an electrolyte solution with respect to the electrodes, while maintaining mechanical support within the fuel cell. The fuel cell utilizes encapsulated electrodes to maintain a high air flow rate and low pressure throughout the fuel cell. The fuel cell is also designed to maintain mechanical support within the fuel cell while the electrodes expand and contract in response to the absorption of oxygen and hydrogen. Gas is predistributed by the compression plates and electrode plates to supply the electrodes with high concentrations of oxygen from air.

Growing community of inventors

Rochester Hills, MI, United States of America

Boyko Aladjov