Abstract: Disclosed is an electrode for high-current-density operation. The electrode includes a substrate 202, a first layer 204 which is positioned to be in contact with the substrate and which includes TiOx and an electronically conductive oxide, a second layer 206 which is positioned to be in contact with the first layer and which includes TiOx and an oxide having oxidation durability to an electrolyte, and a third layer 208 which is positioned to be in contact with the second layer and the electrolyte and which includes TiOx and an oxide oxidizing the electrolyte.

Abstract: Disclosed is a membrane electrode assembly that includes a polymer electrolyte membrane, a first electrochemical reaction layer formed on one side of the polymer electrolyte membrane to allow an oxidation reaction to occur thereon, a first electron-conductive layer formed between the polymer electrolyte membrane and the first electrochemical reaction layer, a second electrochemical reaction layer formed on a remaining side of the polymer electrolyte membrane to allow a reduction reaction to occur thereon, and a second electron-conductive layer formed between the polymer electrolyte membrane and the second electrochemical reaction layer. The first electron-conductive layer and the second electron-conductive layer include a porous metal.

Abstract: Disclosed is a 3-dimensional porous mono-polar electrode body that includes a 3-dimensional porous parent substance, which has a 3-dimensional structure including a side and a remaining side that communicate with each other via a plurality of pores arranged in multiple layers and which is made of a metal material to have dimensional stability, and an electrode catalyst layer applied on the 3-dimensional porous parent substance. The 3-dimensional porous mono-polar electrode body is used to remove microorganisms contained in treatment water to thus minimize the consumption of power, which is required to remove the microorganisms, prevent secondary pollution, and ensure the durability of an electrode.

Abstract: Disclosed is a reinforced composite membrane for water electrolysis, and a membrane electrode assembly having the same. More particularly, the present invention relates to a reinforced composite membrane for water electrolysis, and a membrane electrode assembly (MEA), wherein a two-dimensionally woven fabric base, layer that, minimizes swelling of the membrane in the X-axis and Y-axis directions is covered on a hydrogen electrode to which high pressure is applied or on hydrogen and oxygen electrodes by three-dimensionally electrospun reinforcing fiber layers, the reinforcing fiber layers minimizing swelling of the membrane in the Z-axis direction, thereby reducing permeation of oxygen (O2) via the hydrogen electrode and enabling operation under high pressure due to high dimensional stability.

Abstract: Disclosed is a 3-dimensional porous mono-polar electrode body that includes a 3-dimensional porous parent substance, which has a 3-dimensional structure including a side and a remaining side that communicate with each other via a plurality of pores arranged in multiple layers and which is made of a metal material to have dimensional stability, and an electrode catalyst layer applied on the 3-dimensional porous parent substance. The 3-dimensional porous mono-polar electrode body is used to remove microorganisms contained in treatment water to thus minimize the consumption of power, which is required to remove the microorganisms, prevent secondary pollution, and ensure the durability of an electrode.

Abstract: Disclosed is a membrane electrode assembly that includes a polymer electrolyte membrane, a first electrochemical reaction layer formed on one side of the polymer electrolyte membrane to allow an oxidation reaction to occur thereon, a first electron-conductive layer formed between the polymer electrolyte membrane and the first electrochemical reaction layer, a second electrochemical reaction layer formed on a remaining side of the polymer electrolyte membrane to allow a reduction reaction to occur thereon, and a second electron-conductive layer formed between the polymer electrolyte membrane and the second electrochemical reaction layer.

Abstract: The present invention relates to a spherical electrode and to a spherical electrode cell, and more particularly, to a method for forming an electrode on an ion-exchange resin or forming an electrolysis cell on an ion-exchange resin. The spherical electrode or spherical electrolysis cell of the present invention can be used for: electrolysis reactors, for example in hydrolysis for producing hydrogen and oxygen gas; for the production of oxidants by means of the electrolysis of electrolytes such as a sodium chloride solution and sodium chlorite; or fuel cells that generate electricity using oxygen and hydrogen.

Abstract: The present invention relates to a membrane electrode assembly for electrochemical cells, and a manufacturing method thereof. In the membrane electrode assembly, electro-catalytic layers forming electrodes on both surfaces of an ion-exchange membrane have a plurality of pores evenly distributed therein. According to the invention, the electro-catalytic layers are made porous, and thus the amount of precious metal used can be reduced so that the manufacturing cost of the catalytic layers can be greatly reduced. In addition, the reaction efficiency of the catalytic layers can be stabilized to improve the efficiency thereof.

Abstract: The present invention relates to an ion exchange membrane type electrolyzer producing chlorine and metal alkali hydroxide. The features include the unit electrolyzer comprises an anode partition wall made of titanium; a cathode partition wall made of nickel; an electrical conduction plate of appropriate dimension for electrical connection; and a current distribution frame. The electrical connection between each unit electrolyzer is provided by spring type metal plates explosively welded.