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公开(公告)号：US20240301570A1
公开(公告)日：2024-09-12
申请号：US18661344
申请日：2024-05-10
发明人： TAKAYUKI NAKAUE , OSAMU SAKAI , YUKIMUNE KANI
摘要： A compression device includes: an electrochemical cell that includes an anode and a cathode that sandwich an electrolyte membrane; a voltage application unit that applies a voltage between the anode and the cathode; and a metal plate that is exposed to compressed hydrogen generated at the cathode and that is resistant to hydrogen embrittlement. The metal plate includes a first terminal connected to the voltage application unit. The first terminal is directly connected to a second terminal that has a lower resistance than the first terminal. The second terminal is directly connected to the voltage application unit, and the first terminal is connected to the voltage application unit via the second terminal.
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2.发明公开公开(公告)号：US20240240338A1
公开(公告)日：2024-07-18
申请号：US18560125
申请日：2022-05-11
IPC分类号： C25B15/031 , C25B1/04 , C25B9/21 , C25B15/033 , C25B15/08
CPC分类号： C25B15/031 , C25B1/04 , C25B9/21 , C25B15/033 , C25B15/087
摘要： Apparatuses for the generation of carbon dioxide and hydrogen from a water having a carbonate species are disclosed. The apparatus includes an anodic compartment having an anode disposed on a first side of the anodic compartment and a cathodic compartment having a cathode disposed on a first side of the cathodic compartment. The apparatus further includes a first cation permeable fluidic separator disposed on a second side of the anodic compartment and a second cation permeable fluidic separator disposed on a second side of the cationic compartment. A center compartment is defined between the first cation permeable fluidic separator and the second cation permeable fluidic separator. The apparatus further includes a flow control system configured to independently control flow of water through each of the anodic compartment, the cathodic compartment, and the center compartment. Methods of generating hydrogen, carbon dioxide, and oxygen from seawater using the apparatus are also disclosed.
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公开(公告)号：US20230416925A1
公开(公告)日：2023-12-28
申请号：US18210384
申请日：2023-06-15
IPC分类号： C25B1/02 , C25B9/21 , C25B11/031
CPC分类号： C25B1/02 , C25B11/031 , C25B9/21
摘要： An electrolytic cell includes a membrane electrode assembly, a pair of separators, a gas supply flow path, and a gas discharge flow path. A fuel electrode of the membrane electrode assembly contains a catalytic material that activates the electrolytic reactions of the raw material gas, and the amount of the catalytic material contained in the fuel electrode increases from the upstream side to the downstream side of the gas supply flow path.
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公开(公告)号：US11702754B2
公开(公告)日：2023-07-18
申请号：US17883767
申请日：2022-08-09
发明人： Saad Dara , Beniamin Zahiri
IPC分类号： C25B11/031 , C25B9/23 , C25B11/032 , C25B11/052 , C25B9/21 , B01D61/46 , B01D69/02 , C01D15/02 , C01D15/04 , C01D15/08 , C01F5/24 , C01F11/18 , C02F1/461 , C02F1/469 , C25B1/16 , C25C1/02 , C25C7/02 , C25C7/04 , C25B11/048 , C25B11/046 , C25B9/19 , C25B11/053 , C25B13/00 , C02F101/10 , C02F103/08 , C02F103/10
CPC分类号： C25B9/23 , B01D61/46 , B01D69/02 , C01D15/02 , C01D15/04 , C01D15/08 , C01F5/24 , C01F11/181 , C02F1/4693 , C02F1/46109 , C25B1/16 , C25B9/19 , C25B9/21 , C25B11/032 , C25B11/046 , C25B11/048 , C25B11/052 , C25B11/053 , C25B13/00 , C25C1/02 , C25C7/02 , C25C7/04 , B01D2313/345 , B01D2325/10 , B01D2325/36 , B01D2325/38 , B01D2325/42 , C02F2001/46142 , C02F2001/46166 , C02F2101/10 , C02F2103/08 , C02F2103/10
摘要： In this disclosure, a process of recycling acid, base and the salt reagents required in the Li recovery process is introduced. A membrane electrolysis cell which incorporates an oxygen depolarized cathode is implemented to generate the required chemicals onsite. The system can utilize a portion of the salar brine or other lithium-containing brine or solid waste to generate hydrochloric or sulfuric acid, sodium hydroxide and carbonate salts. Simultaneous generation of acid and base allows for taking advantage of both chemicals during the conventional Li recovery from brines and mineral rocks. The desalinated water can also be used for the washing steps on the recovery process or returned into the evaporation ponds. The method also can be used for the direct conversion of lithium salts to the high value LiOH product. The method does not produce any solid effluent which makes it easy-to-adopt for use in existing industrial Li recovery plants.
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公开(公告)号：US20230220567A1
公开(公告)日：2023-07-13
申请号：US18124226
申请日：2023-03-21
发明人： Nga Thi Quynh DO
摘要： A method for performing an electrolysis using an electrolysis stack having multiple electrolysis cells, wherein each of the electrolysis cells has: an anode space with an anode, a cathode space with a cathode, a membrane that separates the anode space and the cathode space from each other, and a recombination catalyst. The method includes feeding an electrolysis medium to the electrolysis stack and determining a flow rate at which the electrolysis medium is fed to the electrolysis stack, providing electrical energy to the electrolysis stack for performing the electrolysis with the electrolysis medium fed to the electrolysis stack, and determining a degree of degradation of the membranes based on the determined flow rate of the electrolysis medium.
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公开(公告)号：US11649552B2
公开(公告)日：2023-05-16
申请号：US17883850
申请日：2022-08-09
发明人： Saad Dara , Beniamin Zahiri
IPC分类号： C25B9/17 , C25B9/23 , C25B11/032 , C25B11/052 , C25B9/21 , B01D61/46 , B01D69/02 , C01D15/02 , C01D15/04 , C01D15/08 , C01F5/24 , C01F11/18 , C02F1/461 , C02F1/469 , C25B1/16 , C25C1/02 , C25C7/02 , C25C7/04 , C25B11/048 , C25B11/046 , C25B9/19 , C25B11/053 , C25B13/00 , C02F101/10 , C02F103/08 , C02F103/10
CPC分类号： C25B9/23 , B01D61/46 , B01D69/02 , C01D15/02 , C01D15/04 , C01D15/08 , C01F5/24 , C01F11/181 , C02F1/4693 , C02F1/46109 , C25B1/16 , C25B9/19 , C25B9/21 , C25B11/032 , C25B11/046 , C25B11/048 , C25B11/052 , C25B11/053 , C25B13/00 , C25C1/02 , C25C7/02 , C25C7/04 , B01D2313/345 , B01D2325/10 , B01D2325/36 , B01D2325/38 , B01D2325/42 , C02F2001/46142 , C02F2001/46166 , C02F2101/10 , C02F2103/08 , C02F2103/10
摘要： In this disclosure, a process of recycling acid, base and the salt reagents required in the Li recovery process is introduced. A membrane electrolysis cell which incorporates an oxygen depolarized cathode is implemented to generate the required chemicals onsite. The system can utilize a portion of the salar brine or other lithium-containing brine or solid waste to generate hydrochloric or sulfuric acid, sodium hydroxide and carbonate salts. Simultaneous generation of acid and base allows for taking advantage of both chemicals during the conventional Li recovery from brines and mineral rocks. The desalinated water can also be used for the washing steps on the recovery process or returned into the evaporation ponds. The method also can be used for the direct conversion of lithium salts to the high value LiOH product. The method does not produce any solid effluent which makes it easy-to-adopt for use in existing industrial Li recovery plants.
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公开(公告)号：US20240175143A1
公开(公告)日：2024-05-30
申请号：US18488303
申请日：2023-10-17
发明人： Toshiaki KUSAKARI
摘要： A water electrolysis cell stack includes a plurality of water electrolysis cells stacked on each other. The water electrolysis cell stack is characterized in that the water electrolysis cells are located adjacent to each other, the water electrolysis cell has an anode separator and a cathode separator, each of the anode separator and the cathode separator has, on its front and back, grooves serving as channels, and a resin is located in at least part of clearance between the adjacent water electrolysis cells in a region where the grooves are located.
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公开(公告)号：US20240141508A1
公开(公告)日：2024-05-02
申请号：US18278798
申请日：2022-03-28
IPC分类号： C25B1/04 , C25B9/21 , C25B9/65 , C25B11/054 , C25B11/081 , C25B13/08 , C25B15/023 , C25B15/08
CPC分类号： C25B1/04 , C25B9/21 , C25B9/65 , C25B11/054 , C25B11/081 , C25B13/08 , C25B15/023 , C25B15/08
摘要： A production method for producing a hydrogen gas through electrolysis of water is provided. The production method includes: decreasing a current density to a range that is greater than 0 A/cm2 and less than a value used in the electrolysis and in which the electrolysis does not stop; holding the current density for 1 second or more while introducing a gas to at least a hydrogen generating electrode; and decreasing the current density to a value at which the electrolysis does not take place so as to stop the electrolysis. It is preferable that the gas is a gas that is electrochemically inert to a fuel cell reaction. It is also preferable that the gas is at least one selected from the group consisting of nitrogen and a noble gas.
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公开(公告)号：US20240117504A1
公开(公告)日：2024-04-11
申请号：US18275095
申请日：2022-01-21
申请人： TECHWIN CO., LTD.
发明人： Jung Sik KIM , Hyun Su SHIN , Jun Teak HYUN , Sun Teak HYUN
摘要： A water electrolysis device includes an electrolyte correction unit having a diaphragm, the device having an electrolyte correction unit, including a diaphragm, for removing a concentration difference inside an electrolyte, so as to prevent a gas composition in a gas phase area of the water electrolysis device from reaching an explosion limit and, simultaneously, prevent the occurrence of a difference in a liquid level due to a difference in the concentration of the electrolyte even if the electrolyte discharged from an anode chamber and the electrolyte discharged from a cathode chamber are each circulated independently, and thus does not require an additional device for solving same, and can resolve the problem of a reduction in processability according to electrolyte re-injection and operation stabilization.
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公开(公告)号：US20240076783A1
公开(公告)日：2024-03-07
申请号：US17803599
申请日：2022-09-02
申请人： Yonghua Wang
发明人： Yonghua Wang
CPC分类号： C25B1/23 , C25B9/21 , C25B13/04 , H01M8/22 , H01M16/003
摘要： A combined electrochemical CO2 reduction and a fuel cell system cogenerates CO from CO2 and electric power through a hybrid CO2 reducer and a Hydroxide Exchange Membrane Fuel Cell (HEMFC) system driven by hydrogen and oxygen generated from renewable energy. In the structure of the hybrid system, a CO2 cell chamber compartment and a hydrogen cell chamber compartment are incorporated into a HEMFC, wherein CO2 is reduced into CO by protons generated in the electric power generation process of fuel cell.
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