20 results about "Ion-permeable membranes" patented technology

A problem to be solved by the present invention is to provide an ion exchange membrane that can increase the surface area of a membrane effective for ion permeation, properly decreases the electric resistance of a flow passage between membranes and the attachment of a contaminating substance thereto, also enhances the mechanical strength of the membrane itself, and further, is less deformed or damaged due to swelling over a wide range of salt concentrations and even if there is a large difference in salt concentration between two solutions contacted with the membrane. The present invention provides an ion exchange membrane having a concavo-convex shape, wherein the ion exchange membrane has a flat portion in the vicinity of ends, and a convex curve and a concave curve resulting from curvatures of the ion exchange membrane itself form a convex part and a concave parts, respectively, in the concavo-convex shape of the ion exchange membrane, wherein the convex part extends linearly or curvedly, the concave part between the convex parts is flat, the concave part includes a first concave part adjacent to the convex part in the lateral direction of the convex part, along the longitudinal direction of the convex part, the convex part has an apex and a side face in the longitudinal direction, and the side face is inclined from the apex toward the first concave part.

The present disclosure provides a fuel cell comprising at least one fuel cell plate. Each fuel cell plate includes at least one first insulating layer, at least one ion permeable membrane, and a plurality of anodes and a plurality of cathodes. All cathodes are disposed across a first surface of the ion permeable membrane and all anodes are disposed across a second surface of the ion permeable membrane opposite the first surface. At least one material property of the anode or the cathode or a size of the anode or a size of the cathode varies or varies across the fuel cell plate, and / or at least one material property of another component of the fuel cell plate varies or varies across the fuel cell plate. A pair of anodes and cathodes across at least one ion permeable membrane may be electrically connected in parallel with an adjacent pair of anodes and cathodes.

An ion permeable membrane for selective permeation of a target ion, preferably lithium, through the membrane, the membrane comprising a target ion permeable composite comprises a target ion permeable ceramic and at least one organic polymer associated with the target ion permeable ceramic.

Method for exhaust air purification, wherein an exhaust air stream is passed through a magnetic field (10, 20), a chemical, preferably basic or acidic, solution is sprayed into the exhaust air stream, The exhaust air stream is treated in an electrochemical reaction module (40) which comprises an anodic part, a cathodic part and an ion-permeable membrane (43) located between the anodic part and the cathodic part. wherein the anodic part comprises at least one passage channel (41), preferably a plurality of passage channels running side by side, wherein the cathodic part comprises at least one passage channel (42), preferably a plurality of passage channels running side by side, wherein a supplied reaction gas is passed through the cathodic part, wherein the exhaust air stream is passed through the anodic part for the oxidation of organic components of the exhaust air stream and In a third process stage (3) the exhaust air stream is passed through an electrostatic precipitator (30).

The utility model discloses an easy-to-disassemble cotton thread permeation reference electrode membrane module which comprises a membrane pressing seat, a membrane pressing plate, a membrane pressing plate, a membrane pressing plate, a membrane pressing plate and a membrane pressing plate, wherein an inner hole is formed in the membrane pressing seat in a penetrating manner; the cotton thread bar is arranged in the inner hole; and the ion permeable membrane is arranged at the bottom of the membrane pressing seat and is in contact with the cotton bar. According to the cotton thread permeation reference electrode membrane module provided by the utility model, the cotton thread is arranged in the inner hole of the membrane pressing seat, so that the defect that bubbles are generated in the inner hole of the membrane pressing seat in the storage and use processes of the electrode is overcome, and meanwhile, the pressure of filled liquid does not directly act on the ion permeation membrane any more, so that the service life of the membrane module is prolonged.

An ion permeable membrane for selective permeation of a target ion, preferably lithium, through the membrane, the membrane comprising a target ion permeable composite comprises a target ion permeable ceramic and at least one organic polymer associated with the target ion permeable ceramic.

This disclosure provides a fuel cell comprising at least one fuel cell substrate. Each fuel cell substrate comprises a MEA including an ion permeable membrane, an anode, and a cathode. The anode is located on a first surface of the ion permeable membrane, and the cathode is located on a second surface of the ion permeable membrane. Each fuel cell substrate comprises a first insulating layer having at least one first fluid path, and a second insulating layer having at least one second fluid path. The MEA is located between the first insulating layer and the second insulating layer such that at least one first fluid path is arranged to allow an oxidizing fluid to flow to one or more cathodes of at least one fuel cell substrate, and at least one second fluid path is arranged to allow a reducing fluid to flow to one or more anodes of at least one fuel cell substrate. The fuel cell substrate comprises at least one third fluid path for a heat exchange fluid.

To provide a humidity-variation power-generation element having high operational stability with respect to environmental conditions.SOLUTION: The present invention relates to a humidity-variation power-generation element that obtains an electromotive force by using humidity fluctuations in the environment. In both sides of an ion-permeable membrane, an aqueous electrolyte containing an ionic compound having deliquescence is accommodated together with an electrode. On one side of the ion-permeable membrane, the aqueous electrolyte is accommodated in the ion-permeable membrane under a waterproof moisture-permeable film that allows water vapor to pass. On the other side of the ion-permeable membrane, the aqueous electrolyte is accommodated in the ion-permeable membrane under a waterproof and moisture-proof film or wall that blocks at least moisture in the environment. The waterproof moisture-permeable film has flexibility and is provided along the surface of the aqueous electrolyte.SELECTED DRAWING: Figure 2

The present disclosure provides a component (201) for an electrochemical device. The component comprises a Membrane Electrode Assembly (MEA) (113) comprising at least one ion permeable membrane, at least one anode, and at least one cathode. The one or more anodes are arranged on a first surface of the ion permeable membrane and the one or more cathodes are arranged on a second surface of the ion permeable membrane. The component also comprises a cathode plate (101) comprising a first insulating layer between a first conductive layer and a second conductive layer, the first conductive layer comprising the first fluid path. The component also comprises an anode plate (102) comprising a second insulating layer between a third conductive layer and a fourth conductive layer, the third conductive layer comprising the second fluid path. The MEA is located between the first conductive layer of the cathode plate (101) and the third conductive layer of the anode plate (102) so that the first fluid path is arranged such that a fluid can flow to or from the one or more cathodes and so that the second fluid path is arranged such that a fluid can flow to or from the one or more anodes.

The invention pertains to an electrolysis system with a high-pressure electrolyzer for producing hydrogen (H2) and oxygen (O2) at a nominal pressure (PN). The system includes multiple electrolysis cells, each with two half-cells separated by an ion-permeable membrane, forming an anode chamber and a cathode chamber. An oxygen product line connects to the anode chamber, while a hydrogen product line connects to the cathode chamber. The hydrogen and oxygen product lines lead to respective gas separators. The system features compressed gas accumulators for hydrogen and oxygen, enabling pressurized gas to be supplied to the electrolyzer on both sides, with adjustable primary pressures. The invention also includes a method for operating the system, where the electrolyzer is precharged with pressurized gas, and differential pressures are regulated to ensure efficient operation. This system supports both proton-exchange membrane (PEM) and alkaline electrolysis for high-pressure hydrogen and oxygen production.

This disclosure provides a fuel cell comprising at least one fuel cell board. Each fuel cell board comprises at least one first insulating layer, at least one ion-permeable membrane, a plurality of anodes, and a plurality of cathodes. All cathodes are arranged across the entire first surface of the ion-permeable membrane, and all anodes are arranged across the entire second surface opposite the first surface of the ion-permeable membrane. At least one material property of an anode or cathode, or the size of an anode or cathode, varies across the entire fuel cell board, and / or at least one material property of other components of the fuel cell board varies across the entire fuel cell board. A pair of anodes and cathodes flanking at least one ion-permeable membrane may be electrically connected in parallel with adjacent anode-cathode pairs.

Provided are a power generation method and a power generating element capable of obtaining an electromotive force by utilizing humidity variation in an environment and having excellent operation stability. An aqueous solution of an ionic compound having deliquescence is separated by an ion permeable membrane, electrodes are inserted into the aqueous solution on both sides of the ion permeable membrane, one is blocked from outside air and sealed, and the other is connected to the outside air, and a difference in ion concentration derived from the ionic compound in the aqueous solution is generated across the ion permeable membrane due to a change in humidity in the outside air to generate an electromotive force between the electrodes.

Provided is a power generation element that obtains a larger electromotive force using changes in humidity in the environment. Provided is a power generation element that generates power using a change in humidity caused by water vapor in the environment. A first chamber isolated from water vapor in the environment and a second chamber open to the water vapor in the environment are separated by an ion permeable membrane, and the first chamber and the second chamber are each filled with a water-based electrolyte comprising an aqueous solution of a deliquescent ionic compound. And electrodes are respectively arranged in the first chamber and the second chamber. Wherein the ion permeable membrane is composed of an electrolyte capable of conducting unhydrated ions.

The present disclosure is directed to lithium electrodeposition systems and methods of using such electrodeposition systems. Specifically, the electrodeposition systems disclosed herein can include a catholyte chamber and at least one anolyte chamber, wherein the catholyte chamber is configured to receive an electrode substrate such that a width direction of the electrode substrate is substantially parallel to the direction of gravity as it moves through the catholyte chamber. In addition, the system can be configured to flow lithium ions from the anolyte chamber to the catholyte chamber through an ion-permeable membrane and deposit lithium metal on a side of the electrode substrate as it moves through the catholyte chamber.

The invention relates to an electrolysis system (1) comprising an electrolyser (3) for producing hydrogen (H2) and oxygen (O2) as product gases, comprising a plurality of electrolysis cells which each have two half-cells separated by an ion-permeable membrane (5) so that an anode chamber (7) and a cathode chamber (9) are formed. On the anode side, an oxygen product line (11B) is connected to the anode chamber (7) and on the cathode side a hydrogen product line (11A) is connected to the cathode chamber (9), wherein the hydrogen product line (11A) leads into a first gas separator (13A) and the oxygen product line (11B) leads into a second gas separator (13B). The electrolysis system (1) has a differential pressure control device (15) which comprises a differential pressure sensor (17A) that is configured such that a differential pressure (Δp) between the anode chamber (7) and the cathode chamber (9) can be determined, the value of which can be processed in the differential pressure control device. The invention further relates to a method for operating such an electrolysis system (1).

The invention relates to the technical field of high-salinity wastewater treatment, in particular to a high-salinity wastewater purification reactor which comprises an inner tank, a wastewater pump and a water inlet pipe. The two ion permeable membranes are oppositely mounted at the bottom of the cavity of the tank body, the output end of the water inlet pipe extends into a space I defined by the two ion permeable membranes, a surrounding plate is mounted on the outer sides of the two electrodes in a surrounding manner, a space II for concentrating high-salinity wastewater is formed between the surrounding plate and the two ion permeable membranes, and a space II for concentrating high-salinity wastewater is formed between the surrounding plate and the two ion permeable membranes. The top of the second space is separated from the middle of the treatment chamber of the tank body through a reverse osmosis membrane, and a third space for crystallizing high-salinity wastewater is arranged between the outer side of the coaming and the inner wall of the tank body; the evaporation membrane is horizontally arranged at the middle upper part of the treatment chamber of the tank body, a fourth space for gathering clear water is arranged between the evaporation membrane and the reverse osmosis membrane, and a fifth space for gathering water vapor is arranged between the evaporation membrane and the top of the tank body; the high-salinity wastewater is subjected to secondary concentration, so that the crystallization and precipitation speed of the high-salinity wastewater is increased, and the purification treatment efficiency of the high-salinity wastewater is improved.

This provides a simpler way to recover lithium from waste energy storage devices containing lithium and polyvalent metals. [Solution] The lithium recovery method is a lithium recovery method for recovering lithium from waste of energy storage devices containing lithium and polyvalent metals, and includes a lithium recovery apparatus equipped with a cell having a raw material chamber between an anode and a cathode, an extraction chamber, and a monovalent selective cation permeable membrane separating the raw material chamber and the extraction chamber, and includes an extraction step in which lithium is extracted from an acidic raw material solution containing a leaching solution in which lithium and polyvalent metals contained in the waste are dissolved and leached out with mineral acid, contained in the raw material chamber, by passing an electric current between the anode and the cathode, into an acidic extract solution containing mineral acid contained in the extraction chamber.

The present application relates to the technical field of high-salinity wastewater treatment, and particularly relates to a high-salinity wastewater purification reactor, which comprises an inner tank body, a wastewater pump and a water inlet pipe; further comprising: two ion permeation membranes oppositely installed at the bottom of a cavity of the tank body, an output end of the water inlet pipe extending into a space one enclosed by the two ion permeation membranes, a surrounding plate installed around the outer side of the two electrodes, a space two for concentrating high-salinity wastewater formed between the surrounding plate and the two ion permeation membranes, the top of the space two and the middle part of a treatment cavity of the tank body being separated by a reverse osmosis membrane, a space three for crystallizing high-salinity wastewater being arranged between the outer side of the surrounding plate and the inner wall of the tank body; an evaporation membrane horizontally installed at the upper part of the treatment cavity of the tank body, a space four for gathering clean water being formed between the evaporation membrane and the reverse osmosis membrane, and a space five for gathering water vapor being arranged between the evaporation membrane and the top of the tank body; the high-salinity wastewater purification reactor improves the speed of crystallization and precipitation of high-salinity wastewater and the efficiency of high-salinity wastewater purification treatment by performing two-stage concentration on the high-salinity wastewater.

Hydrogen generation device with: a first electrolysis device (10) comprising a first anode electrode (12), a first cathode electrode (14) and a proton-permeable membrane (16) arranged between the first anode electrode (12) and the first cathode electrode (14); a second electrolysis device (18) comprising a second anode electrode (20), a second cathode electrode (22) and a hydroxide ion-permeable membrane (24) arranged between the second anode electrode (20) and the second cathode electrode (22); and an operator device (26, 26a, 26b) by means of which at least one operating voltage can be applied between the first anode electrode (12) and the first cathode electrode (14) and / or between the second anode electrode (20) and the second cathode electrode (22) such that water as a reactant can be decomposed by a first water electrolysis carried out by means of the first electrolysis device (10) and / or by means of a second water electrolysis carried out by means of the second electrolysis device (18); characterized by the fact that in the hydrogen generation device a vapor transfer path (30, 40) extending from the first cathode electrode (14) to the second cathode electrode (22) is designed such that water vapor of a hydrogen-water vapor mixture released at the first cathode electrode (14) can be transferred at least partially from the first cathode electrode (14) to the second cathode electrode (22) and can be separated by means of the second water electrolysis carried out by the second electrolysis device (18).

The utility model discloses an electrochemical reactor for enzyme electrocatalysis and an enzyme electrocatalysis system. Wherein the electrochemical reactor comprises a reactor main body and a reactor support arm which are integrally connected; a reaction cavity used for containing a reference electrode and a working electrode is formed in the reactor body, a liquid inlet is formed in the bottom end of the reaction cavity, a liquid outlet is formed in the upper portion of the reaction cavity, a first opening used for installing an electrode support is formed in the top end of the reaction cavity, and an electrode cavity used for containing a counter electrode is formed in the reactor supporting arm. The bottom end of the electrode cavity is communicated with the lower part of the reaction cavity, a glass sand core diaphragm or an ion permeable membrane is arranged in a connecting channel between the electrode cavity and the reaction cavity, and a glass sand core supporting plate is arranged in the reaction cavity below the connecting channel. The electrochemical reactor adopts a continuous flow type design, so that reaction liquid can continuously flow through the reaction cavity, and the electrochemical reactor is not only suitable for reaction analysis, but also suitable for large-scale enzyme electro-catalysis continuous production and biosynthesis.