公开(公告)号：US20240191376A1

公开(公告)日：2024-06-13

申请号：US18530493

申请日：2023-12-06

申请人： HONDA MOTOR CO., LTD.

发明人： Takumi KAWANO

IPC分类号： C25B15/025 ,  C25B1/04 ,  C25B9/05 ,  C25B15/08

CPC分类号： C25B15/025 ,  C25B1/04 ,  C25B9/05 ,  C25B15/083

摘要： An electrochemical system includes a first stack, a first tank for storing high-pressure gas output from the first stack, a check valve disposed in a flow path connecting the first stack and the first tank, a first pressure sensor and a second pressure sensor connected respectively to the upstream and the downstream of the check valve, and a control unit. The control unit determines that an electrolyte membrane has been damaged when the pressure difference between the upstream and the downstream of the check valve exceeds a predetermined pressure.

公开(公告)号：US20230194380A1

公开(公告)日：2023-06-22

申请号：US18060474

申请日：2022-11-30

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Keisuke FUJITA

IPC分类号： G01M3/26 ,  C25B15/025 ,  C25B9/23 ,  C25B1/04

CPC分类号： G01M3/26 ,  C25B15/025 ,  C25B9/23 ,  C25B1/04

摘要： To make it possible to detect whether leakage is external leakage or cross leakage in a water electrolyzer, a valve installed in an oxygen-side path, and a valve installed in a hydrogen-side path are closed; a water electrolysis reaction at a water electrolytic cell is progressed, and leakage in the oxygen-side path and leakage in the hydrogen-side path are determined based on the change in an internal pressure; and a differential pressure is made between the oxygen-side path and the hydrogen-side path, and leakage from a solid polymer electrolyte membrane is determined based on the change in the differential pressure.

公开(公告)号：US20230175147A1

公开(公告)日：2023-06-08

申请号：US17997457

申请日：2020-06-12

申请人： DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES ,  JINKAI INSTRUMENT (DALIAN) CO., LTD

发明人： Dehui DENG ,  Yanting LIU ,  Xiao YANG ,  Jinchang FAN ,  Qiang ZHAO ,  Xiaoqi ZHAO

IPC分类号： C25B9/01 ,  H01M50/247 ,  H01M50/284 ,  H01M50/298 ,  C25B15/08 ,  C25B15/025 ,  C25B9/65 ,  C25B9/67 ,  C25B1/04

CPC分类号： C25B9/01 ,  H01M50/247 ,  H01M50/284 ,  H01M50/298 ,  C25B15/08 ,  C25B15/085 ,  C25B15/025 ,  C25B9/65 ,  C25B9/67 ,  C25B1/04 ,  H01M2220/30

摘要： A portable hydrogen-oxygen generator includes a housing having a detachable upper cover and a bottom cover. An electrolytic cell module is arranged in the housing. The electrolytic cell module has a hydrogen generation chamber and an oxygen generation chamber. A cathode electrode plate and an anode electrode plate are respectively arranged in the hydrogen generation chamber and the oxygen generation chamber, and the bottoms of the two generation chambers are communicated for electrolyte circulation. A hydrogen outlet part and an oxygen outlet part detachably arranged on the upper cover and respectively corresponding to the hydrogen generation chamber and the oxygen generation chamber. A filtering film for removing water is arranged between the hydrogen/oxygen outlet part and the electrolytic cell module. A power supply module is arranged on the bottom cover of the housing to supply electric energy to the cathode electrode plate and the anode electrode plate.

公开(公告)号：US20240360565A1

公开(公告)日：2024-10-31

申请号：US18602075

申请日：2024-03-12

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Maki YONETSU ,  Yasuhiro KIYOTA ,  Yusuke KOFUJI ,  Ryota KITAGAWA ,  Satoshi MIKOSHIBA

IPC分类号： C25B1/04 ,  C25B3/26 ,  C25B9/23 ,  C25B11/032 ,  C25B11/061 ,  C25B11/065 ,  C25B13/02 ,  C25B13/08 ,  C25B15/025

CPC分类号： C25B1/04 ,  C25B3/26 ,  C25B9/23 ,  C25B11/032 ,  C25B11/061 ,  C25B11/065 ,  C25B13/02 ,  C25B13/08 ,  C25B15/025

摘要： An electrolysis cell 20 includes: a cathode 31 to reduce a reducible gas; an anode 41 to oxidize an oxidizable substance in an electrolytic solution, the cathode 41 containing titanium; and a separator 50 separating the cathode 31 from the anode 41. The separator 50 includes a porous membrane. The porous membrane gives a pore size distribution defined by a graph having a horizontal axis and a vertical axis, the horizontal axis representing pore sizes of through holes of the porous membrane, the pore sizes being determined by using a porometer, the vertical axis representing a pore size flow distribution of pore volumes corresponding to the pore sizes, and the pore size distribution having a peak top in a range of not less than 0.01 μm nor more than 0.3 μm. The porous membrane has an ISO air permeance of not less than 0.8 μm/Pa·s nor more than 150 μm/Pa·s.

公开(公告)号：US20230295822A1

公开(公告)日：2023-09-21

申请号：US18166014

申请日：2023-02-08

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Keisuke FUJITA ,  Tsuyoshi HAMAGUCHI ,  Ryuichi IWATA ,  Tomoyuki KAYAMA ,  Takahiro IKEDA

IPC分类号： C25B15/025 ,  C25B9/77 ,  C25B9/23 ,  C25B1/04 ,  C25B15/027 ,  C25B15/033

CPC分类号： C25B15/025 ,  C25B1/04 ,  C25B9/23 ,  C25B9/77 ,  C25B15/027 ,  C25B15/033

摘要： Provided is a method of controlling a load of a water electrolysis stack in which a plurality of water electrolysis cells including an anode disposed on one side and a cathode disposed on the other side with a solid polyelectrolyte film interposed are stacked and housed. The method includes determining an appropriate load based on a condition of an inside of the water electrolysis stack obtained from at least one of a temperature of the inside of the water electrolysis stack, an electrical resistance, or a water flow rate, and changing application of the load on the water electrolysis stack such that the load is the appropriate load.

公开(公告)号：US11585002B2

公开(公告)日：2023-02-21

申请号：US17223931

申请日：2021-04-06

申请人： ViZn Energy Systems, Inc.

发明人： Aaron Mannington Street ,  Derek C. Tarrant

IPC分类号： C25B15/08 ,  H01M8/06 ,  C25B15/025

摘要： A controller stops flow of posolyte through a positive electrode chamber of a flow cell to trap the posolyte within the positive electrode chamber and hydraulically isolate the flow cell without stopping flow of negolyte through a negative electrode chamber of the flow cell, discharges the flow cell until hydrogen gas is evolved at a reactive surface of the positive electrode chamber while the posolyte is trapped within the positive electrode chamber, and subsequently discontinues the discharge and restarts the flow of the posolyte through the positive electrode chamber.

公开(公告)号：US20220205121A1

公开(公告)日：2022-06-30

申请号：US17599649

申请日：2020-04-03

申请人： DynElectro ApS

发明人： Soren Hojgaard Jensen ,  Christopher Ronald Graves ,  Mogens Bjerg Mogensen

IPC分类号： C25B15/025 ,  C25B1/04 ,  C25B1/23 ,  C25B9/65 ,  H01M8/0656

摘要： This invention relates to a system comprising one or more electrolysis cell(s) and at least one power electronic unit that supplies the cell(s) with a fluctuating voltage, and to a method for operating one or more electrolysis cell(s), comprising providing one or more voltage fluctuations to the electrolysis cell(s) by at least one power electronic unit, enabling the provision of a low-cost electrolysis system which simultaneously allows for fast-response dynamic operation, improved electrolysis efficiency, increased lifetime and high impurity tolerance.

公开(公告)号：US20230323551A1

公开(公告)日：2023-10-12

申请号：US18155154

申请日：2023-01-17

申请人： Bloom Energy Corporation

发明人： Ali ZARGARI ,  Ehsan RAOUFAT ,  Julio LUNA ,  Alireza SAEEDMANESH

IPC分类号： C25B15/025 ,  C25B1/042 ,  C25B9/77 ,  C25B15/08 ,  C25B15/027

CPC分类号： C25B15/025 ,  C25B1/042 ,  C25B9/77 ,  C25B15/087 ,  C25B15/027

摘要： A modular solid oxide electrolyzer cell (SOEC) system including a stack of electrolyzer cells configured to receive steam in combination with hydrogen, and a steam recycle outlet configured to recycle a portion of the steam.

公开(公告)号：US20230220575A1

公开(公告)日：2023-07-13

申请号：US17996221

申请日：2021-04-14

申请人： ASAHI KASEI KABUSHIKI KAISHA

发明人： Yasuhiro FUJITA ,  Hiroyuki TOGO ,  Hirokazu NAGATE ,  Yousuke UCHINO ,  Keisuke NAKASHIMA

IPC分类号： C25B15/025 ,  C25B9/77 ,  C25B1/04

CPC分类号： C25B15/025 ,  C25B9/77 ,  C25B1/04

摘要： An electrolysis system of the present disclosure includes an electrolyzer which includes an electrode to generate a gas from the electrode, and a tightening device which controls a tightening load on the electrolyzer in accordance with a pressure of the gas.

公开(公告)号：US11639554B1

公开(公告)日：2023-05-02

申请号：US17123578

申请日：2020-12-16

申请人： The Trustees of Boston College

发明人： Dunwei Wang ,  Qi Dong ,  Xizi Zhang

IPC分类号： C25B3/26 ,  C25B15/025 ,  C25B9/15

摘要： A flow cell for reducing carbon dioxide may include a first chamber having a gold coated gas diffusion layer working electrode, a reference electrode, and a water-in-salt electrolyte comprising a super concentrated aqueous solution of lithium bis-(trifluoromethanesulfonyl)imide (LiTFSI). A second chamber adjacent the first chamber has a gold coated gas diffusion layer counter electrode and the water-in-salt electrolyte. The second chamber being separated from the first chamber by a proton exchange membrane. A reservoir coupled to each of the first and the second chambers with a pump contains a volume of the water-in-salt electrolyte and a head space.