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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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公开(公告)号：US20200044272A1
公开(公告)日：2020-02-06
申请号：US16512319
申请日：2019-07-15
Inventor： TAKASHI KAKUWA , HIROMI KITA , TOMOYA KAMATA , MASATOSHI NAKAMURA , TOMOHIRO KUROHA
IPC: H01M8/1246 , H01M4/88 , H01M8/1004
Abstract: A cell including: a pair of interconnectors for electrically connecting unit cells; a membrane-electrode assembly disposed between the interconnectors; a pair of current collectors, each of which includes an abutting surface abutting against a corresponding one of the electrode layers and a first base material surface being in contact with a corresponding one of the interconnectors and electrically connecting the corresponding of the electrode layers and the corresponding one of the interconnectors; and elastic bodies biasing the abutting surface of at least one current collector toward a corresponding one of the electrode layers. The elastic bodies includes: a second base material surface being in contact with the first base material surface; and an elastic body protruding portion supporting the abutting surface and protruding from the second base material surface toward the corresponding one of the electrode layers to bias the abutting surface toward the corresponding one of the electrode layers.
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公开(公告)号：US20210399325A1
公开(公告)日：2021-12-23
申请号：US17467314
申请日：2021-09-06
Inventor： SHIGENORI ONUMA , TOMOHIRO KUROHA
IPC: H01M8/1213 , H01M8/1004 , H01M4/90 , H01M4/86
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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公开(公告)号：US20150295263A1
公开(公告)日：2015-10-15
申请号：US14670592
申请日：2015-03-27
Inventor： TOMOHIRO KUROHA , KAZUHITO HATO , TOMOYA KAMATA
CPC classification number: H01M8/12 , C25B1/02 , C25B1/04 , C25B11/0405 , C25B13/04 , H01M4/8621 , H01M4/8652 , H01M4/8657 , H01M4/9033 , H01M8/1213 , H01M8/1246 , H01M8/186 , H01M2008/1293 , H01M2300/0074 , Y02E60/366 , Y02E60/525 , Y02P70/56
Abstract: The present invention provides a fuel cell comprising a cathode, an electrolyte membrane, and an anode. The electrolyte membrane is sandwiched between the cathode and the anode. The cathode is formed of a first proton conductor represented by the following chemical formula Aa(BbMm)O3-x (where A represents a divalent metal, B represents a tetravalent metal, M represents a trivalent metal, 2(3−x)=2a+4b+3m, b+m=1, and x=(3−2a−b)/2) and a mixed ionic electronic conductor. The electrolyte membrane is formed of a second proton conductor represented by the following chemical formula A′a′(B′b′M′m′)O3-x′ (where A′ represents a divalent metal, B′ represents a tetravalent metal, M′ represents a trivalent metal, 2(3−x′)=2a′+4b′+3m′, b′+m′=1, and x′=(3−2a′−b′)/2). The following mathematical formula m≦m′ is satisfied. The electric power generation efficiency is improved.
Abstract translation: 本发明提供一种包括阴极，电解质膜和阳极的燃料电池。 电解质膜被夹在阴极和阳极之间。 阴极由以下化学式Aa（BbMm）O3-x（其中A表示二价金属，B表示四价金属，M表示三价金属，2（3-x）= 2a）表示的第一质子导体形成 + 4b + 3m，b + m = 1，x =（3-2a-b）/ 2）和混合离子型电子导体。 电解质膜由以下化学式A'a'（B'b'M'm'）O3-x'表示的第二质子导体形成，其中A'表示二价金属，B'表示四价金属， M'表示3价金属，2（3-x'）= 2a'+ 4b'+ 3m'，b'+ m'= 1，x'=（3-2a'-b'）/ 2）。 满足以下数学公式m＆nlE; m'。 发电效率提高。
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5.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：US20230006234A1
公开(公告)日：2023-01-05
申请号：US17901872
申请日：2022-09-02
Inventor： KOSUKE NUNOO , YUICHI MIKAMI , HIROSHI ASANO , TOMOHIRO KUROHA , YUJI OKUYAMA
IPC: H01M8/1213 , H01M8/1246 , C01G25/00
Abstract: A proton conductor of the present disclosure includes a compound represented by the chemical formula BaZr(1-x-y)YbxScyO3-δ. The chemical formula satisfies 0
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公开(公告)号：US20210408569A1
公开(公告)日：2021-12-30
申请号：US17474502
申请日：2021-09-14
Inventor： YUICHI MIKAMI , TAKEHITO GOTO , SHIGENORI ONUMA , HIDEAKI MURASE , TOMOHIRO KUROHA
IPC: H01M8/1253 , H01M8/1004
Abstract: A membrane electrode assembly according to the present disclosure includes an electrolyte membrane containing a proton conductive oxide and an electrode containing a lanthanum strontium cobalt iron composite oxide located on the electrolyte membrane, wherein, in the electrode, the ratio of the number of moles of cobalt to the sum of the number of moles of cobalt and the number of moles of iron is 0.35 or more and 0.6 or less.
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公开(公告)号：US20170301925A1
公开(公告)日：2017-10-19
申请号：US15472435
申请日：2017-03-29
Inventor： KOSUKE YAMAUCHI , TAKEHITO GOTO , TOMOYA KAMATA , YUICHI MIKAMI , TOMOHIRO KUROHA , ATSUO OKAICHI , YOICHIRO TSUJI , YUJI OKUYAMA
IPC: H01M4/90 , G01N27/407 , H01M8/0612 , H01M8/1253 , H01M8/124
Abstract: A membrane electrode assembly of an electrochemical device includes a proton conductive solid electrolyte membrane and an electrode including Ni and an electrolyte material which contains as a primary component, at least one of a first compound having a composition represented by BaZr1-x1M1x1O3 (M1 represents at least one element selected from trivalent elements each having an ion radius of more than 0.720 A° to less than 0.880 A°, and 0
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公开(公告)号：US20160344054A1
公开(公告)日：2016-11-24
申请号：US15150318
申请日：2016-05-09
Inventor： TOMOYA KAMATA , TOMOHIRO KUROHA , YUKIMUNE KANI , HIROSHIGE MATSUMOTO
IPC: H01M8/1253 , C01G25/00
CPC classification number: H01M8/1253 , C01G25/006 , C04B35/486 , C04B35/6262 , C04B35/62655 , C04B35/62675 , C04B35/62695 , C04B35/638 , C04B35/645 , C04B2235/3215 , C04B2235/3225 , C04B2235/3286 , C04B2235/443 , C04B2235/449 , C04B2235/604 , C04B2235/768 , C04B2235/785 , C04B2235/786 , C04B2235/79 , H01B1/122 , H01M2008/1293 , H01M2300/0077 , Y02E60/525 , Y02P70/56
Abstract: A proton conductor is a proton conductor represented by a composition formula of BaZr1-x-yYxInyO3, and x and y in the composition formula satisfy 0
Abstract translation: 质子导体是由组成式BaZr1-x-yYxInyO3表示的质子导体，组成式中的x和y满足0
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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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