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公开(公告)号：US20220056597A1
公开(公告)日：2022-02-24
申请号：US17517033
申请日：2021-11-02
Inventor： YUICHI MIKAMI , TOMOHIRO KUROHA , TAKASHI KAKUWA , TAKESHI TERAYAMA , SHIGENORI ONUMA , KOSUKE NUNOO , TAKEHITO GOTO , KYOHEI KAWADA
IPC: C25B9/21 , C25B1/04 , C25B13/07 , C25B15/021 , C01B3/50
Abstract: The electrochemical apparatus of the present disclosure includes a first stack that includes an oxide ion conductor as an electrolyte and decomposes water vapor to generate hydrogen and oxygen, a second stack that includes a proton conductor as an electrolyte and separates the hydrogen generated in the first stack from a gas mixture of the hydrogen and the water vapor that has not been decomposed in the first stack, and a heat insulation material that covers the first stack and the second stack.
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2.发明申请公开(公告)号：US20230006235A1
公开(公告)日：2023-01-05
申请号：US17901874
申请日：2022-09-02
Inventor： YUICHI MIKAMI , KOSUKE NUNOO , TAKEHITO GOTO , HIROSHI ASANO , TAKESHI TERAYAMA , TOMOHIRO KUROHA , HIDEAKI MURASE
IPC: H01M8/1253 , H01M8/1004 , H01M8/126 , C01G25/00
Abstract: An electrode material of the present disclosure is an electrode material that includes a compound represented by the chemical formula BaZr1-x-yMxCoyO3-δ. M is In or Yb, and the chemical formula satisfies 0
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Patent Agency Ranking
公开(公告)号：US20230067326A1
公开(公告)日：2023-03-02
申请号：US18047668
申请日：2022-10-19
Inventor： YUICHI MIKAMI , TAKEHITO GOTO , TAKESHI TERAYAMA , KOSUKE NUNOO , TOMOHIRO KUROHA
IPC: H01M8/0662 , H01M8/04089 , H01M8/1231 , H01M8/1246 , H01M8/0612 , H01M8/04007 , B01D53/32
Abstract: A fuel cell system including: an electrochemical pump including a first anode, a first cathode, and a first electrolyte membrane including a proton conductive oxide, the electrochemical pump separating hydrogen from a gas containing the hydrogen, and a solid oxide fuel cell that includes a second anode, a second cathode, and a second electrolyte membrane including a solid oxide electrolyte, and that generates electricity by reacting a fuel gas and an oxidant gas with each other.
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公开(公告)号：US20220311030A1
公开(公告)日：2022-09-29
申请号：US17807107
申请日：2022-06-15
Inventor： TAKESHI TERAYAMA , TOMOHIRO KUROHA , KYOHEI KAWADA
IPC: H01M8/04303 , H01M8/04858 , H01M8/04089 , H01M8/1016 , H01M8/1004
Abstract: The fuel cell system of the present disclosure includes: a fuel cell that includes a membrane electrode assembly including a proton conducting ceramic electrolyte membrane, a cathode disposed on a first surface of the electrolyte membrane, and an anode disposed on a second surface of the electrolyte membrane, the fuel cell generating electric power through an electrochemical reaction using a fuel gas and an oxidant gas; a power source that applies a voltage to the fuel cell; and a controller. In a shutdown process, the controller controls the power source to apply the voltage to the fuel cell such that a terminal voltage of the fuel cell is equal to or higher than an open circuit voltage of the fuel cell.
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公开(公告)号：US20220109172A1
公开(公告)日：2022-04-07
申请号：US17551192
申请日：2021-12-15
Inventor： TAKESHI TERAYAMA , TOMOHIRO KUROHA , KYOHEI KAWADA
IPC: H01M8/04746 , H01M8/04303 , H01M8/1213
Abstract: A fuel cell system according to the present disclosure includes: a solid oxide fuel cell that produces electricity from an electrochemical reaction by using a fuel and air and that includes a membrane electrode assembly including a proton-conductive electrolyte membrane, a cathode disposed on a first main surface of the electrolyte membrane, and an anode disposed on a second main surface of the electrolyte membrane; and a controller. In the operation stop process for stopping operation of the fuel cell system, the controller is configured to control supply of the fuel at a higher flow rate than the flow rate of the fuel consumed in the solid oxide fuel cell in an open circuit state.
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公开(公告)号：US20220029195A1
公开(公告)日：2022-01-27
申请号：US17493912
申请日：2021-10-05
Inventor： KOSUKE NUNOO , TAKEHITO GOTO , YUICHI MIKAMI , TAKESHI TERAYAMA , SHIGENORI ONUMA , TAKASHI KAKUWA , KYOHEI KAWADA , TOMOHIRO KUROHA
IPC: H01M10/0562
Abstract: An electrochemical cell includes a first electrolyte layer containing an oxide-ion conductor, a second electrolyte layer containing a proton conductor, a first electrode which is disposed between the first electrolyte layer and the second electrolyte layer and in contact with a first principal surface of the first electrolyte layer and a first principal surface of the second electrolyte layer and into which a gas flows, a second electrode which is provided on a second principal surface of the first electrolyte layer and which generates oxygen, and a third electrode which is provided on a second principal surface of the second electrolyte layer and which generates hydrogen.
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公开(公告)号：US20210320314A1
公开(公告)日：2021-10-14
申请号：US17355263
申请日：2021-06-23
Inventor： KOSUKE NUNOO , TAKEHITO GOTO , YUICHI MIKAMI , TAKESHI TERAYAMA , TOMOHIRO KUROHA
IPC: H01M8/1007 , H01M8/1004 , H01M4/86 , H01M4/90
Abstract: A membrane electrode assembly according to the present disclosure is a membrane electrode assembly including: a solid electrolyte membrane containing an electrolyte material; and an electrode in contact with a reactant gas, wherein the electrode includes a structural support including a ceramic member, and a pore extending from a boundary surface in contact with the reactant gas toward the solid electrolyte membrane in the structural support and filled with a filler having at least one selected from the group consisting of hydrogen oxidation activity, oxygen reduction activity, proton reduction activity, steam decomposition activity, and oxide ion oxidation activity.
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