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公开(公告)号：EP0257398A3
公开(公告)日：1988-04-20
申请号：EP87111362
申请日：1987-08-06
CPC分类号： H01M4/9041 , H01M4/8626 , H01M4/8647 , H01M8/0625 , H01M8/142 , H01M2004/8684 , H01M2008/147 , H01M2300/0051 , Y02E60/526
摘要： A dual compartment anode structure for use in molten carbonates fuel cells having an electrolyte porous metallic plate structure (14) with one face (14a) adapted to contact the electrolyte (13) and an opposite face having a plurality of ribs (14b) extending therefrom, a hydrogen ion and molecular hydrogen and electrolyte non-porous metallic foil (15) having one face in contact with the ends of the ribs to define an anode reaction gas compartment (22) therebetween, and a corrugated metallic current collector (16) having a plurality of peaks with one face at the peaks in contact with the opposite face of the metallic foil defining an anode fuel gas compartment (21) therebetween. The dual compartment anode structure of this invention provides separation between the electrolyte and the fuel thereby permitting internal cell reforming of hydrocarbon containing fuels without poisoning of the reforming catalyst and provides greater cell stability due to reduction in corrosion and reduced electrolyte and electrode loss.
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2.发明公开Gas-fed porous electrode for use in vertical plane in electrochemical cell or electrolytic cell 失效用于电化学细胞或电解质细胞的垂直平面中的气体多孔电极
公开(公告)号：EP0106621A3
公开(公告)日：1986-01-22
申请号：EP83306020
申请日：1983-10-05
摘要： A porous gas fed electrode (14) adapted to operate in a large capacity cell (10) with a stable three phase interface in the electrode thereby avoiding the problems of gas percolation can be readily achieved in a simple and inexpensive manner by the provision of a porous hydrophilic layer (21) on the surface of the electrode which is in contact with the aqueous electrolyte (17). Due to the high capillary pressure exhibited by liquids in hydrophilic pores, very high gas pressures are required to force the gas through the structure and the loss of gas into the electrolyte is thereby eliminated. In addition, a gas pressure in the gas compartment (23) of the electrochemical cell employing such an electrode can be raised to balance the electrolyte pressure at the bottom of the electrode thereby effectively preventing electrolyte seepage into the gas compartment.
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公开(公告)号：EP0241432A3
公开(公告)日：1988-12-14
申请号：EP87830085
申请日：1987-03-05
CPC分类号： H01M4/8807 , C25B11/035 , C25C1/16 , H01M4/86 , H01M4/885 , H01M4/8896 , H01M8/08 , H01M8/1004 , H01M8/1007 , H01M8/1009
摘要： Disclosed herein is a gas permeable electrode which comprises a gas permeable layer and a reaction layer, the reaction layer comprising hydrophobic portions and hydrophilic portions. Electrolyte penetrates into the reaction layer and does not penetrate into the gas permeable layer, and only the gas produced on the electrode and the gas supplied penetrate into the gas permeable layer. The gas can be released from the rear side of the electrode and the reaction surface thereof never be covered with the gas.
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公开(公告)号：EP0249305A3
公开(公告)日：1988-01-13
申请号：EP87302151
申请日：1987-03-12
CPC分类号： H01M4/9066 , C25B11/04
摘要： Cermet electrodes consisting of metal particles (7) of nickel, cobalt, iron, or alloys or mixtures thereof immobilized by zirconia (8) stabilized in cubic form which contains (9) from 0.1 to 5% by weight of praseodymium, dysprosium, terbium, or an alloy or mixture thereof. The solid oxide electrode can be made by covering a substrate with particles of nickel, cobalt, iron, or alloys or mixtures thereof, growing a stabilized zirconia solid oxide skeleton around the particles thereby immobilizing them, contacting the skeleton with a compound of praseodymium, dysprosium, terbium, or an alloy or a mixture thereof, and heating the skeleton to a temperature of at least 500°C. The electrode can also be made by preparing a slurry of nickel, cobalt, iron, or alloy or mixture thereof and a compound of praseodymium, dysprosium, terbium, or an alloy or a mixture thereof, depositing the slurry on a substrate, heating the slurry to dryness, and growing a stabilized zirconia skeleton around the metal particles.
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5.发明公开Polymeric hydrogel-containing gas diffusion electrodes and the like and method of using the same in electrochemical systems 失效含聚合物的含氢气体扩散电极及其在电化学体系中的使用方法
公开(公告)号：EP0182451A3
公开(公告)日：1987-02-04
申请号：EP85302417
申请日：1985-04-04
申请人： PROTOTECH COMPANY
发明人： Juda, Walter , Ilan, Amiram Bar
CPC分类号： H01M4/86 , C25B11/00 , C25B11/035 , G01N27/304
摘要： This invention is concerned with catalytic gas-diffusion structures such as electrodes and barriers comprising, as an integral part of portion thereof, a non-ionic aqueous gel such as a polyvinyl alcohol, rendering said electrode impervious to gas percolation, while retaining electrolyte contact with the structures; and with methods of using said electrodes or barriers in a variety of electrochemical systems including electrolysis cells, fuel cells, batteries and others, as well as in metal-recovery systems involving no electricity.
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公开(公告)号：EP0107612A3
公开(公告)日：1985-12-27
申请号：EP83810365
申请日：1983-08-16
CPC分类号： H01M4/86 , C25B11/0473 , C25C7/02 , H01M8/08 , H01M10/345
摘要： A porous gas-diffusion electrode having a ruthenium electrocatalyst is conditioned for operation as a hydrogen consuming anode by connecting the electrode as a cathode in a suitable electrolyte until it drops below the reversible hydrogen potential and evolves hydrogen. Preferably, the electrode is contacted with a hydrogen atmosphere prior to or at the beginning of hydrogen evolution, and conditioning may be carried out in situ in a cell in which the electrode is to operate as hydrogen consuming anode.
摘要翻译： 具有钌电催化剂的多孔气体扩散电极通过将电极作为阴极连接在适当的电解质中而调节为用作消耗氢的阳极，直到其下降到可逆氢势以下并释放氢。 优选地，在氢析出之前或开始时，电极与氢气氛接触，并且可以在电极作为氢消耗阳极操作的电池中的原位进行调理。
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公开(公告)号：EP0110491A3
公开(公告)日：1985-09-18
申请号：EP83302293
申请日：1983-04-22
IPC分类号： H01M04/86
CPC分类号： H01M4/86
摘要： An electrode is made comprising a porous backing sheet, and attached thereto a catalytically active layer having an electrolyte permeable side and a backing layer contacting side, where the active layer comprises a homogeneous mixture of active hydrophobic and hydrophilic agglomerates with catalyst disposed equally throughout the active layer, and where the agglomerate size increases from the electrolyte permeable side to the backing sheet contacting side.
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公开(公告)号：EP0253459A3
公开(公告)日：1988-12-14
申请号：EP87300648
申请日：1987-01-26
CPC分类号： G01N27/4075 , C25B9/08 , C25B11/00 , H01M8/12
摘要： Exterior electrode bonded to the exterior of a tubular, solid, oxygen ion-conducting electrolyte where the electrolyte is also in contact with an interior electrode, said exterior electrode comprising particles of an electronic conductor contacting the electrolyte, where a ceramic metal oxide coating partially surrounds the particles and is bonded to the electrolyte, and where a coating of an ionic-electronic conductive material is attached to the ceramic metal oxide coating and to the exposed portions of the particles.
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公开(公告)号：EP0098144A3
公开(公告)日：1986-01-29
申请号：EP83303707
申请日：1983-06-28
摘要： There is disclosed a metal current carrier for use in fabricating thin electrochemical cell electrodes comprising a thin metal screen having disposed on one side a thin layer of coarse metal particles which at least partially fill the multiple openings in the metal screen and which are sintered to themselves and to the metal screen. There is also disclosed a method of fabricating such a metal current carrier and also an electrochemical cell electrode utilising such a metal current carrier.
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公开(公告)号：EP0114484A3
公开(公告)日：1985-07-31
申请号：EP83307646
申请日：1983-12-15
发明人： Puglisi, Vincent J.
CPC分类号： H01M4/86 , H01M10/345
摘要： An improved rechargeable lead-hydrogen electrochemical cell is provided which comprises a cell stack secured to a retainer and disposed within a pressure vessel containing hydrogen gas. The stack includes a positive electrode comprising lead oxide, a pair of gas-porous negative electrodes containing a catalyst, a pair of separators and a pair of gas screens. The stack components are saturated with sulfuric acid electrolyte. Each of the negative electrodes has a separator disposed on one side thereof and a gas screen disposed on the opposite side thereof. The pressure vessel contains a gas inlet, and electrical leads connect to, respectively, the positive and negative electrodes and exit the pressure vessel. In the charged form, the cell reactants exist as lead oxide and hydrogen gas. When the cell is discharged, the lead oxide is reduced to lead sulfate and the hydrogen gas is oxidized at a catalytic surface to hydrogen ion. The cell has a lower cost with fewer technical problems, has a higher specific energy density and has a superior performance, relative to conventional metal hydrogen cells.
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