Technology used to prevent power loss in fuel cell
This technology longitudinally aligns a variety of carbon nanotube versions (single wall, multi wall, ropes, or carbon filters) and positions them perpendicularly to the Proton Exchange Membrane. This improves fuel cell effectiveness and efficiency.
The technology improves:
* Electrical current density – improvement of the fuel delivery, elimination of the fuel starvation regions and increase of the reaction centers population density and uniformity
* Mechanical integrity – elimination or reduction of carbon ink and hydrophobic agents
* Operational life time – improvement in separation of the charge collector and reactant surfaces
* Internal electrical losses – reduction of the diffusion layer electrical resistance and reduction of resistance between diffusion layer and charge collecting plates
* Efficiency of the fuel consumption – improvement in the reactant and reaction product flow leading to better utilization of available reactants
* Effectiveness of reaction products (water) removal.
Applies to all PEM Fuel Cell Stacks used in powering portable, and highly miniaturized, special medical instrumentation and personal/consumer multimedia devices for long operational time and rapid refueling.
U.S. Patent Classes & Classifications Covered in this Patent:
Class 428: Stock Material Or Miscellaneous Articles
This is the residual class for: 1. Stock material in the form of a structurally defined web, sheet, rod, strand, fiber, filament, cell, flake, particle not provided elsewhere. 2. Stock material in the form of a web, sheet, mass or layer which consists of or contains a structurally defined constituent or element. 3. A nonstructural laminate defined merely in terms of the composition of one or more layers. 4. An article of manufacture or an intermediate-article not provided for elsewhere. 5. A process for applying an impregnating material to a naturally solid product such as a wood beam, a sheet of leather or a stone, or for applying a coating to a base, and which process includes no significant method step.
Subclass 119: Including sheet or component perpendicular to plane of web or sheet
Subclass 120: Inward from edge of web or sheet
Subclass 36.9: Open-ended, self-supporting conduit, cylinder, or tube-type article
Subclass 367: Including free carbon or carbide or therewith (not as steel)
Class 313: Electric Lamp And Discharge Devices
This is the generic class for electric lamp and electric space discharge device structure. Examples of such devices are electric incandescent lamps, gas or vapor filled electric discharge tubes, including lamps, mercury arc devices, vacuum discharge tubes, radio tubes, cyclotrons, cathode-ray tubes, photosensitive discharge devices, secondary emission electron multipliers, spark plugs, and open air arc and spark devices.
Subclass 309: DISCHARGE DEVICES HAVING A MULTIPOINTED OR SERRATED EDGE ELECTRODE
Class 429: Chemistry: Electrical Current Producing Apparatus, Product, And Process
This class is the generic class for devices which produce an electrical current by means of a chemical reaction or change in physical state (e.g., from liquid to gas, etc.). Also included are the following subject matter not provided for elsewhere. 1. Structural combinations of the device, subcombinations and elements thereof. 2. Electrolyte, compositions of the same, and process of preparation. 3. Process of operating the device. 4. Miscellaneous process involving the device.cata
Subclass 30: Solid electrolyte
Subclass 31: Tubular
Subclass 33: Electrolyte composition chemically specified
Problem this idea/invention addresses:
Fuel starvation, carbon ink and hydrophobic agents, high diffusion layer electrical resistance, and reaction product removal in fuel cells.
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