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WO/1993/023887 |
The combination of a gas depolarized electrochemical battery, i.e., a battery containing at least one cell, with one ore more tiny electrically activated, thermally responsive semiconductor microactuators, i.e., a "valve-on-a-chip", disp...
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WO/1993/021664 |
A method and apparatus for storing and producing electrical energy in an electrochemical cell (32), where the cathode is a porous air electrode (7) and the anode is a hydrogen-containing metal hydride (4). According to the invention, an ...
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WO/1993/019495 |
A metal-air power supply which provides improved control over air flow is provided. The reactant air and cooling air inlets are separate from one another and isolated from the exhausted reactant and cooling portions of the air flow, the ...
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WO/1993/012554 |
A metal-air cell (70), such as is used in a zinc-air battery, includes a tray (2) having one or more air holes (3) and a hydrophobic membrane (4) covering the air holes (3). A substantially flat air electrode (9) is oriented parallel wit...
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WO/1993/012555 |
An appropriate electrochemical process is disclosed for rechargeable batteries and/or cell packages, in particular zinc/bromine cells, with circulating, for example pumped, electrolytes, and having bipolar electrodes interconnected in se...
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WO/1993/009573 |
A method of charging a metal-air or metal-oxygen electro-chemical cell (5) which serves to extend the useful life of the cell. Charging of the cell takes place with the addition of hydrogen, via an inlet line (4) and an inlet valve (7), ...
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WO/1993/007649 |
A zinc-nitric acid fuel cell which has a basic structure comprising a cation exchange film (1), positive and negative plate chambers (3 and 2) separated by the cation exchange film (1), a positive carbon plate (4) disposed in the positiv...
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WO/1993/007652 |
A metal/air fuel cell is described in which hydrogen is effectively removed from a cell stack and electrolyte storage tank without emitting caustic vapour or mist. The fuel cell comprises: (a) a fuel cell assembly housing, (b) a pluralit...
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WO/1993/007651 |
A manifold system is described for equalizing electrolyte flow to a plurality of metal/air cells of a fuel cell assembly. The fuel cell comprises: (a) a housing, (b) a plurality of metal/air cells disposed vertically in the housing, (c) ...
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WO/1993/003532 |
An electrical energy system including an electric utility having electricity generation apparatus and distribution lines, a plurality of electric vehicles and electric power storage apparatus receiving electrical power from the electric ...
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WO/1992/021156 |
There is disclosed a process for producing an electrochemical cathode (18) for an electrochemical cell (10) comprised of a current collecting layer (32) or substrate having at least one side thereof to a layer (34) of a nonwoven conducti...
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WO/1992/020113 |
A nickel-hydrogen accumulator battery includes a base plate which supports the accumulators, each accumulator being held in a surrounding holder fixed to the base plate. The battery further comprises electrical protection elements for th...
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WO/1992/010864 |
The cells of a multicell metal/oxigen battery construction each contain a potassium hydroxide electrolyte, a metal anode plate and a pair of oxygen permeable cathode panels, one on each side of the anode. Each cell has an electrically no...
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WO/1992/008253 |
A portable, direct current electric generator (10 or 70) uses a salt water solution as an electrolyte. An outer housing (11) in the form of an open-topped, rectangular box is provided, and an inner housing (40) having a compartment for r...
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WO/1992/006514 |
A metal air battery comprises a plurality of cells (6), each including a metal anode and an air cathode (8), a fan (102) arranged to draw air from the atmosphere and to blow it through or past the air cathodes, an alkaline electrolyte re...
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WO/1992/005598 |
An aluminium cell comprises an electrolysis region with a top reservoir and a sump below. Circulation of electrolyte is by convection. The cell is designed to continue operation past the point at which the electrolyte becomes saturated, ...
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WO/1992/005599 |
Chemical reactor for reactions involving gas generation comprising feed lines, reaction chambers and outlet lines wherein the outlet lines comprise separate gas removal devices (3'''), preferably disposed at the upper edge of the reactio...
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WO/1992/004739 |
A battery and a method for its operation are described. The battery comprises a caustic-based metal, e.g. aluminum, battery with a cathode adapted to reduce oxygen and a metal anode positioned in spaced juxtaposed relation to the cathode...
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WO/1992/003869 |
Rechargeable electrical power storage apparatus including an electrical power storage unit (14) having one or more rechargeable electrical cells containing a rechargeable electrical power storage medium, the storage medium being relative...
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WO/1992/002964 |
An electrical power storage system for use with an electric vehicle and having one or more rechargeable electrical cells, each cell including outer electrode apparatus configured to define an interior storage space for a rechargeable ele...
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WO/1991/008597 |
A sealing apparatus (20) supplies one or more activating gases needed to produce a current generating chemical reaction in an air breathing battery (12'), the supply of one or more activating gases being proportionally controlled (32, 34...
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WO/1991/007783 |
A zinc-air battery (10) in a case (12) including a zinc particle bed (27) supported the current feeder (22) and diaphragm (26) on a porous support plate which holds the particles but passes electrolyte solution. Electrolyte is recycled t...
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WO/1991/002385 |
A rechargeable battery includes a solid protonically conducting electrolyte comprising hydrated aluminum oxide. Two embodiments of the battery are disclosed. In both embodiments, the negative electrode comprises a metal hydride such as P...
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WO/1990/012426 |
There is disclosed an improved battery assembly and process for operating same wherein a battery assembly comprised of bipolar electrodes disposed between an inert cathode current collector acting as a hydrogen electrode and an anode pla...
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WO/1990/012428 |
An air cell whose nearly all the faces are opened comprises a casing (10) having a plurality of ventilation windows (13), a plurality of unit cells (30) contained in the casing (10), and an electrolyte jar (21) that is provided at the bo...
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WO/1990/011625 |
A battery and a method for its operation are described. The battery comprises a metal-air battery with an air cathode having opposed surfaces supported for simultaneous exposure of a first surface to air and a second surface to liquid el...
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WO/1990/004268 |
A nitrogen gas source, suitable as a field source, comprises a metal air battery having an inlet and outlet to allow a flow of air to pass over its porous cathode. Operation of the battery causes the cathode to remove the oxygen, leaving...
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WO/1990/001812 |
An air cell in which a collector is installed between a negative electrode (50) and a positive electrode (20) and being in contact with the positive electrode (20). Therefore, the air cell is small in size, light in weight, produces a la...
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WO/1989/011165 |
The invention relates to primary galvanic cells (batteries) for use with salt water electrolytes, such as sea water. The cell has a rod like anode made preferably of a magnesium alloy, and a cathode consisting of a stainless steel substr...
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WO/1989/005525 |
A nickel-hydrogen electrical storage cell (10) contains a nickel positive electrode (14), a hydrogen negative electrode (16), a separator (18) between the electrodes (14 and 16), and electrolyte including a rubidium hydroxide and cesium ...
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WO/1988/008888 |
Gas diffusion oxygen cathodes (12), oxygen consuming electrochemical cells (10) utilizing such cathodes, and a method of preparing such cathodes are disclosed. The cathode comprises an electrically conductive porous body defining respect...
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WO/1988/006646 |
Gas diffusion electrodes (72) and gas generating or consuming electrochemical cells utilizing the same. The electrode (72) comprises an electronically conductive and electrochemically active porous body defining respective gas (82) and e...
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WO/1988/006644 |
Gas diffusion electrodes (12) and gas generating or consuming electrochemical cells (10) utilizing the same. The electrode (12) comprises an electronically conductive and electrochemically active porous body defining respective gas and e...
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WO/1988/006643 |
Gas diffusion electrodes (12) and gas generating or consuming electrochemical cells (10) utilizing the same. The electrode (12) comprises an electronically conductive and electrochemically active porous body defining respective gas and e...
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WO/1988/006642 |
Gas diffusion electrodes (12) and gas generating or consuming electrochemical cells (10) utilizing the same are disclosed. The electrode (12) includes an electronically conductive and electrochemically active porous body defining respect...
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WO/1988/006645 |
Gas diffusion electrodes (12) and gas generating or consuming electrochemical cells (10) utilizing the same are disclosed. The electrode (12) comprises an electronically conductive and electrochemically active porous body defining respec...
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WO/1988/004750 |
A gas generating galvanic cell for the transport of fluid media is composed of an anode, a cathode and a housing containing an aqueous electrolyte. By closing an outer circuit, a current is made to flow within the cell, generating an amo...
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WO/1988/001103 |
A battery electrolyte, more especially for metal-air batteries, comprises an aqueous mixture of sodium hydroxide and potassium hydroxide. The use of such an electrolyte alleviates the problems of sludge formation whilst maintaining good ...
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WO/1987/004863 |
A process for preventing electrical capacity loss during storage of a pressurized nickel-hydrogen electrical storage cell. An electrical precharge is applied to the positive electrode of the cell, so that discharge of the cell is negativ...
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WO/1987/002515 |
A process and apparatus for controlling the charging of pressurized gas-metal cells such as nickel-hydrogen cells, to prevent detrimental overcharging, wherein the time rate of change of a battery gas pressure index is monitored as a con...
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WO/1987/001242 |
A nickel-hydrogen battery cell comprising of pressure vessel, a plurality of alternately spaced nickel and hydrogen electrodes defining interelectrode spaces therein, an electrolyte reservoir in the form of a separator contained within e...
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WO/1986/005628 |
Selected saturated organic polymers having multiple ether linkages are useful in at least partially passivating the electrochemical reaction occurring at the reactive metal anode of an electrochemical cell using an aqueous electrolyte. U...
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WO/1986/002494 |
An edge seal for a lithium or other consumable method anode (12), (42), (62) comprises a hydrophobic, chemically inert polymer coating having a high ratio of flexural modulus to flexural strength, a low Izod impact value, and low elongat...
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WO/1986/001038 |
An electrochemical cell and method whereby a reactive metal anode is contacted with an aqueous electrolyte containing the hydroxide of the anodic metal, and the electrolyte is circulated to a scrubber (10) for contact with carbon dioxide...
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WO/1985/004286 |
A rotating cathode cell (12) is provided with a lithium anode (24). An acid oxidizing agent and an aqueous electrolyte are supplied to the moving cathode surface such that they are carried to the electrochemical junction (32) between the...
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WO/1985/004287 |
A nickel-hydrogen bipolar battery (10) comprises a plurality of unit cells (30) organized in assemblies wherein the assemblies are stacked and positioned within a hydrogen space. Each unit cell (11, 12, 13) includes a porous hydrogen ele...
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WO/1985/002944 |
A switch (11) for use in controlling operation of a metal-air battery (10). The switch includes a slide (21) guided for reciprocal movement in a preselected path adjacent a wall (18) defining a vent opening (19). The switch includes cont...
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WO/1984/004630 |
A method and apparatus for providing electrical energy. The apparatus defines an electrochemical cell (10) having a lithium-containing anode (11) and an air cathode (12). Electrolyte solution (18) containing soluble oxygen is flowed into...
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WO/1984/003801 |
Battery comprising an ion-permeable sheet containing carbon fibers or fine carbon particles in a high density, the sheet having laminated thereon metal foil or metal powder of, for example, aluminum or zinc via an electrolyte.
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WO/1984/003799 |
An air cell having improved strong electric discharge and storage properties is obtained by using, as a catalyst electrode, manganese oxide obtained by thermal decomposition of gamma-type manganese oxyhydroxide at 250 to 450oC.
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