4 results about "Ion-permeable membranes" patented technology

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.

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.

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.

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).