Abstract:
A system and method for sorption and desorption of molecular gas contained by storage sites of graphite nano-filaments randomly disposed in three-dimensional reticulated aerogel.
Abstract:
An implantable artificial endocrine pancreas comprising a reactive body of soft, plastic, biocompatible, porous hydratable material supporting a multiplicity of endocrine pancreatic islets in isolated spaced relationship from each other; and, a microporous barrier membrane enveloping and supporting the body, in spaced relationship from the pancreatic islets therein and through which molecules having a molecular weight greater than 60,000 Daltons cannot move.
Abstract:
A hydrogen hydride battery including a stack of like cells. Each cell includes novel positive cathode and negative anode electrodes. The negative anode electrodes include micro-porous carbon aerogel structures of randomly disposed interengaged carbon fibers in three-dimensional reticulate form and a hydrogen-absorbing metal alloy structure throughout and conforming generally to and carried by the micro-porous carbon aerogel. The positive cathode electrodes include micro-porous carbon aerogel structures of randomly disposed interengaged carbon fibers in three-dimensional reticulate form that are impregnated with nickelous hydroxide throughout and conforming generally to and carried by the micro-porous carbon aerogel. Central electrolyte separators established of a suitable porous dielectric material, is positioned between positive and negative electrodes.
Abstract:
A nitrogen-metal fuel cell comprising a cathode and an anode in spaced relationship, a first electrolyte solution contacting the cathode, a second electrolyte solution contacting the anode and an ion transfer membrane between the electrolytes to prevent commingling thereof and through which hydroxyl ions freely move. The cathode comprises an aqueous solution of nitrate and an ion transfer membrane between the solution and the electrolyte contacting the cathode.
Abstract:
A hydrocarbon (hydrogen)/air aerogel catalyzed carbon electrode fuel cell system comprising an acid electrolyte filled; steam hydrocarbon catalytic reformer with a heater and operating to receive and reduce hydrocarbons and water into a reformed gas of hydrogen and carbon dioxide gases; a centrifugal gas-separator device receiving reformed gas from the reformer and operating to separate the hydrogen and carbon dioxide gases of the reformed gas and delivering them separately; a fuel cell comprising a micro porous catalyzed-carbon aerogel anode electrode fed with hydrogen gas delivered by the gas separator, a micro porous catalyzed-carbon aerogel cathode electrode fed with oxygen from ambient air, and, a micro porous cation-filled silica hydrogel electrolyte separator between the anode and cathode electrodes; a hydrocarbon fuel supply delivering hydrocarbon fuel to the reformer; a combustion fuel supply selectively delivering hydrocarbon and hydrogen gas to the heater; and, a water supply receiving water produced in the fuel cell by fuel cell reaction and delivering it to the reformer.
Abstract:
An elongate fuel cell with anode and cathode chambers. A fuel supply delivers a hot fuel gas mixture of steam and methanol or methane to the anode chamber. A catalytic reformer in the anode chamber reforms the fuel gas to hydrogen and carbon dioxide. A hydrogen-permeable anode in the anode chamber is premeated by and diffuses the hydrogen to hydrogen ions and free electrons. A catalytic cathode in the cathode chamber receives hydrogen ions from the anode and is supplied with oxygen from the air. A di-electric, hydrogen-ion-permeable separator is positioned between the anode and the cathode to stop movement of electrons and permit movement of hydrogen ions therebetween. An external electric circuit is connected with and extends between the anode and cathode and conducts the free electrons from the anode to the cathode. The hydrogen ions, oxygen and electrons in the cathode react to produce the by-products, heat and water.
Abstract:
A system and apparatus for supplying and circulating fresh electrolyte to and through the anode and ion exchange sections of a plurality of related air/metal fuel cells; preventing the flow of shunt currents through the electrolyte between the fuel cell sections; removing heat produced by fuel cell reaction from the electrolyte; removing solid byproducts of fuel cell reaction from the electrolyte; and reconstituting spent electrolyte. The system and apparatus commingles electrolyte with a hydrophobic liquid dielectric which has a specific gravity which is less than the specific gravity of the electrolyte and conducting the commingled liquids through small diameter conductors of dielectric material to the fuel cell sections. The liquid dielectric in the electrolytes and conductors maintain a current path in the electrolyte open and prevent the flow of shunt currents. The system and apparatus operate to separate commingled liquid dielectric and electrolyte flowing from the fuel cell sections; removes heat carried from the cell sections by the liquid dielectric; recommingles the liquid dielectric and electrolyte and reintroduces into the cell sections. The system and apparatus operate to intermittently transfer portions of partially spent byproduct ladened electrolyte circulated through the anode sections of the cells to a separator in which the byproduct is removed from the spent electrolyte.
Abstract:
A flat, laminated fuel cell gas electrode arranged between and separating gas and liquid mediums in a fuel cell. The electrode includes a flat, perforated sheet metal support and electric conductor part with a rear surface disposed toward the gas medium, a flat, hydrophobic gas permeable membrane with a rear surface in contact with a front surface of said part, a flat liquid and gas permeable metallic current collector with a rear surface spaced from a front surface of said membrane and with a front surface disposed toward the liquid medium, a catalytic barrier structure of bonded together particulate catalytic material and metal conductor filaments by and in electric conducting contact with the collector and having a rear surface in contact with the front surface of the membrane and a plurality of spaced apart electric conducting fasteners engaged with and between said part and collector securing the parts of the electrode in assembled relationship and electrically connecting the current collector with said part.
Abstract:
A metal/gas fuel cell comprising an anode chamber filled with a base anolyte solution, a metallic anode plate immersed in the anolyte; an ion exchange chamber filled with a base ionolyte solution adjacent the anode chamber; a cationic membrane between the anode and ion exchange chambers separating the anolyte and ionolyte; a cathode plate adjacent the ion exchange chamber remote from the cationic membrane with one surface in contact with the ionolyte and another surface in contact with a cathode fuel gas. The cathode plate is a laminated structure including a layer of hydrophyllic material in contact with the ionolyte, a layer of gas permeable hydrophobic material in contact with the gas and a gas and liquid permeable current collector of inert material with catalytic surfaces within the layer of hydrophyllic material. The anode and cathode plates are connected with an external electric circuit which effects the flow of electrons from the anode plate to the cathode plate.
Abstract:
A fuel cell which comprises a metal anode immersed in a base electrolyte solution and connected with an electric circuit, a cathode comprising an acid solution, a carbon catalyst and electron distributor plate in that solution and connected with an electron supply and a wettable fluid impermeable membrane and disposed between the electrolyte and cathode solution and establishing an acid-base reactor interface where hydroxyl ions are generated for conduction through the electrolyte to the anode.