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公开(公告)号：US10700368B2
公开(公告)日：2020-06-30
申请号：US15944426
申请日：2018-04-03
Inventor： Jin Zhang , Shigenori Onuma , Takashi Kakuwa , Masashi Morita
IPC: H01M8/04225 , H01M8/04828 , H01M8/2425 , H01M8/04701 , H01M8/04291 , H01M8/12 , H01M8/04302 , H01M8/04746 , H01M8/0612 , H01M8/04014 , H01M8/0432 , H01M8/04007
Abstract: A high-temperature operation fuel cell system includes a cell stack; a reformer; a raw material supplier supplying a raw material to the reformer; a water supplier supplying reforming water; an air supplier supplying electric power generation air; a combustion chamber in which an off-gas from the cell stack is combusted and which heats the cell stack and the reformer; an igniter igniting the off-gas in the combustion chamber; and a controller. In a start-up sequence, the controller controls so that the raw material is supplied to the reformer, the electric power generation air is supplied to the cell stack, the off-gas is ignited by the igniter, and after the ignition, the supply of the reforming water is started, and after the supply of the reforming water is started, the controller further controls the air supplier to increase the flow rate of the electric power generation air in a stepwise manner.
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公开(公告)号：US11329303B2
公开(公告)日：2022-05-10
申请号：US16451165
申请日：2019-06-25
Inventor： Shigenori Onuma , Takashi Kakuwa , Yuichi Mikami , Tomohiro Kuroha
IPC: H01M8/04955 , H01M8/0432 , H01M8/04537 , H01M8/04746 , H01M8/04858 , H01M8/0612 , H01M8/1253 , H01M8/12
Abstract: A fuel cell system includes: a fuel cell stack including a plurality of cells, each of which has a fuel electrode, an air electrode, and an electrolyte, and performs a power generation by a reaction between a fuel gas and air; a fuel supplier supplying the fuel gas to the fuel electrode; an air supplier supplying the air to the air electrode; a voltage detector detecting the voltage of the fuel cell stack; and a controller stopping the supplying of the fuel gas by the fuel supplier and the supplying of the air by the air supplier when the voltage of the fuel cell stack detected by the voltage detector is decreased to be lower than a threshold voltage after the power generation of the fuel cell stack is stopped.
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公开(公告)号：US20150270559A1
公开(公告)日：2015-09-24
申请号：US14407462
申请日：2014-02-20
Inventor： Shigenori Onuma , Kunihiro Ukai , Takehiro Maruyama
CPC classification number: H01M8/04014 , H01M8/04074 , H01M8/0618 , H01M8/0675 , Y02E60/50
Abstract: A fuel cell system comprises a fuel cell configured to generate electric power through a power generation reaction by using fuel supplied to an anode and cathode air supplied to a cathode; a cathode air heat exchanger configured to perform heat exchange between a cathode exhaust gas which is air discharged after the air has been used in the fuel cell and the air to be supplied to the cathode to transfer a part of heat energy of the cathode exhaust gas to the air; a desulfurization unit configured to remove a sulfur component from a raw material supplied to the desulfurization unit; and a reformer configured to generate a reformed gas which is the fuel from steam and the raw material from which the sulfur component has been removed by the desulfurization unit; and the cathode exhaust gas which has lost a part of the heat energy by the heat exchange in at least the cathode air heat exchanger, is supplied to the desulfurization unit, to heat the desulfurization unit by the heat energy of the cathode exhaust gas.
Abstract translation: 燃料电池系统包括燃料电池，该燃料电池被配置为通过使用供应给供给阴极的阳极和阴极空气的燃料通过发电反应产生电力; 阴极空气热交换器，被配置为在燃料电池中使用空气之后排出的空气的阴极排气与供给阴极的空气之间进行热交换，以传递阴极排气的一部分热能 到空中 脱硫单元，被配置为从供给到脱硫单元的原料中除去硫成分; 以及重整器，其构造成从蒸汽和由脱硫单元除去了硫成分的原料产生作为燃料的重整气体; 至少在阴极空气热交换器中通过热交换而损失一部分热能的阴极废气被供给到脱硫单元，以通过阴极废气的热能来加热脱硫单元。
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公开(公告)号：US12148935B2
公开(公告)日：2024-11-19
申请号：US17323905
申请日：2021-05-18
Inventor： Shigenori Onuma , Takashi Kakuwa
IPC: H01M4/90 , H01M8/0206 , H01M8/021 , H01M8/0228
Abstract: An electrochemical device includes an electrolyte membrane, an anode disposed on a first main surface of the electrolyte membrane, a cathode disposed on a second main surface of the electrolyte membrane, an anode separator disposed on the anode, and a cathode separator disposed on the cathode. At least one of the anode separator or the cathode separator includes a metal substrate sheet and a conductive layer disposed on the metal substrate sheet and containing a metal oxide and a metal hydroxide.
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公开(公告)号：US10320016B2
公开(公告)日：2019-06-11
申请号：US15590859
申请日：2017-05-09
Inventor： Osamu Sakai , Kunihiro Ukai , Yasushi Kaneko , Shigenori Onuma , Takashi Kakuwa
IPC: C01B3/06 , H01M8/124 , H01M8/0612 , H01M8/0662 , H01M8/04007 , H01M8/04014
Abstract: A high-temperature fuel cell system includes a fuel cell that includes an anode and a cathode and that generates power by using a fuel gas and an oxidant gas, a fuel-gas path along which the fuel gas flows, an oxidant-gas path along which the oxidant gas flows, an anode-off-gas path along which an anode off-gas flows, a cathode-off-gas path along which a cathode off-gas flows, a combustion space in communication with the anode-off-gas path and the cathode-off-gas path and in which the anode off-gas and the cathode off-gas are burned, a flue-gas path along which a flue gas flows, a cathode-off-gas branch portion disposed on the cathode-off-gas path between the combustion space and the cathode and at which some of the cathode off-gas is branched from the cathode-off-gas path, and a first heat exchanger that enables heat exchange between the oxidant gas, the flue gas, and the cathode off-gas.
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Patent Agency Ranking
公开(公告)号：US11450864B2
公开(公告)日：2022-09-20
申请号：US16296168
申请日：2019-03-07
Inventor： Shigenori Onuma , Tomohiro Kuroha , Takehito Goto
IPC: H01M8/0282 , H01M8/021 , H01M8/0215 , H01M8/0228 , H01M8/1253 , H01M8/0273 , H01M8/242 , H01M8/1246 , H01M8/12
Abstract: The fuel cell of the present disclosure includes: a fuel single cell comprising a fuel electrode, an air electrode, and an electrolyte disposed between the electrodes; a separator for separating a fuel gas flowing through the fuel electrode and air flowing through the air electrode; and a sealing portion for hermetically bonding between the separator and the electrolyte, wherein the sealing portion is constituted of a glass composition containing at least two of metallic or metalloid elements contained in the electrolyte and at least two of metallic or metalloid elements contained in the separator; the electrolyte includes a proton conductor; and the proton conductor is represented by a compositional formula: BaZr1-xMxO3, where 0.05≤x≤0.5; and M is at least one selected from the group consisting of Sc, In, Lu, Yb, Tm, Er, Y, Ho, Dy, and/or Gd.
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公开(公告)号：US10364149B2
公开(公告)日：2019-07-30
申请号：US15721961
申请日：2017-10-02
Inventor： Jin Zhang , Shigenori Onuma , Hidenobu Wakita , Yoichiro Tsuji , Akinori Yukimasa , Hiromi Kita , Masashi Morita
IPC: C01B3/24 , C01B3/38 , H01M8/0612 , C07C5/373 , H01M8/22
Abstract: A hydrogen generation system including: a reformer generating hydrogen-containing gas using a raw material and reforming water; a combustor combusting hydrogen-containing gas and air and generating exhaust gas; a first channel passing cooling water; a condenser generating condensed water by heat exchange between exhaust gas and cooling water; a tank storing condensed water as cooling water; a pump supplying cooling water from the tank to the condenser; a second channel branching at a branch between the pump and condenser in the first channel, and passing some cooling water to the reformer as reforming water; a heater provided downstream of the branch, and heating the first channel; a temperature detector detecting the temperature of the first channel; and a controller, in an activation operation mode, determining whether the second channel is filled with reforming water, based on the temperature detected by the temperature detector after the heater has operated.
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公开(公告)号：US10305132B2
公开(公告)日：2019-05-28
申请号：US15590871
申请日：2017-05-09
Inventor： Takashi Kakuwa , Shigenori Onuma
IPC: B01J8/00 , B01J8/02 , C01B3/38 , F23D14/22 , H01M8/124 , H01M8/0612 , H01M8/0637 , H01M8/1231 , H01M8/1233 , H01M8/1246 , H01M8/2428 , H01M8/04014
Abstract: A high-temperature fuel cell system includes a reformer that reforms a hydrocarbon-based raw fuel to generate a reformed gas containing hydrogen, a fuel cell that generates power by using the reformed gas and an oxidant gas, and a burner that heats the reformer. The burner includes an anode-off-gas gathering portion that has an anode-off-gas ejection hole and at which an anode off-gas discharged from an anode of the fuel cell gathers. The anode-off-gas gathering portion surrounds a first cathode-off-gas passing area through which a cathode off-gas discharged from a cathode of the fuel cell passes. The anode-off-gas ejection hole is formed such that the anode off-gas ejected upward from the anode-off-gas ejection hole approaches the cathode off-gas passing upward through the first cathode-off-gas passing area. The anode off-gas ejected from the anode-off-gas ejection hole and the cathode off-gas that has passed through the first cathode-off-gas passing area are burned.
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公开(公告)号：US09515329B2
公开(公告)日：2016-12-06
申请号：US14407462
申请日：2014-02-20
Inventor： Shigenori Onuma , Kunihiro Ukai , Takehiro Maruyama
CPC classification number: H01M8/04014 , H01M8/04074 , H01M8/0618 , H01M8/0675 , Y02E60/50
Abstract: A fuel cell system including a fuel cell; a cathode air heat exchanger configured to perform heat exchange between a cathode exhaust gas and the air to be supplied to the cathode to transfer a part of heat energy of the cathode exhaust gas to the air; a desulfurization unit configured to remove a sulfur component from a raw material supplied to the desulfurization unit; and a reformer configured to generate a reformed gas which is the fuel from steam and the raw material from which the sulfur component has been removed by the desulfurization unit; and the cathode exhaust gas which has lost a part of the heat energy by the heat exchange in at least the cathode air heat exchanger, is supplied to the desulfurization unit, to heat the desulfurization unit by the heat energy of the cathode exhaust gas.
Abstract translation: 一种燃料电池系统，包括燃料电池; 阴极空气热交换器，被配置为执行阴极排气和要供应到阴极的空气之间的热交换，以将阴极废气的一部分热能传递到空气; 脱硫单元，被配置为从供给到脱硫单元的原料中除去硫成分; 以及重整器，其构造成从蒸汽和由脱硫单元除去了硫成分的原料产生作为燃料的重整气体; 至少在阴极空气热交换器中通过热交换而损失一部分热能的阴极废气被供给到脱硫单元，以通过阴极废气的热能来加热脱硫单元。
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公开(公告)号：US12191544B2
公开(公告)日：2025-01-07
申请号：US17467314
申请日：2021-09-06
Inventor： Shigenori Onuma , Tomohiro Kuroha
IPC: H01M8/1213 , H01M4/86 , H01M4/90 , H01M8/1004
Abstract: A membrane electrode assembly according to the present disclosure includes an electrolyte membrane containing a solid electrolyte and a first electrode bonded to the electrolyte membrane, wherein the solid electrolyte is a compound represented by the composition formula (1): BaZr1-xMxO3-γ, M in the composition formula (1) is at least one element selected from the group consisting of Sc, Er, Ho, Dy, Gd, Y, In, Tm, Yb, and Lu, and 0
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