公开(公告)号：US20200343574A1

公开(公告)日：2020-10-29

申请号：US16924641

申请日：2020-07-09

Applicant: NGK INSULATORS, LTD.

Inventor： Genta TERAZAWA ,  Masato FUKUMORI ,  Yuki TANAKA ,  Takashi RYU ,  Makoto OHMORI

IPC: H01M8/2485

Abstract: A joining structure includes a first bonded member and a glass portion that is bonded to a surface of the first bonded member. The glass portion includes an interface region not exceeding 5 μm of the surface of the first bonded member, and an inner region more than 5 μm from the surface of the first bonded member. The interface region and inner region respectively include rod-shaped crystal particles that have three or more aspect ratios when viewed in cross section. An average orientation angle of the rod-shaped crystal particles included in the interface region is greater than or equal to 60 degrees and less than or equal to 120 degrees. A standard deviation of the orientation angle of the rod-shaped crystal particles included in the inner region is greater than a standard deviation of the orientation angle of the rod-shaped crystal particles included in the interface region.

公开(公告)号：US20190081329A1

公开(公告)日：2019-03-14

申请号：US16179212

申请日：2018-11-02

Applicant: NGK INSULATORS, LTD.

Inventor： Shinji FUJISAKI ,  Takashi RYU ,  Makoto OHMORI

IPC: H01M4/90 ,  H01M4/88

Abstract: The electrochemical cell according to the present invention has an anode, a cathode, and a solid electrolyte layer disposed between the anode and the cathode. The cathode contains a main phase and a second phase. The main phase is configured with a perovskite oxide which is expressed by the general formula ABO3 and includes at least one of Sr and La at the A site. The second phase is configured with SrSO4 and (Co, Fe) 3O4. An occupied surface area ratio of the second phase in a cross section of the cathode is less than or equal to 10.5%.

公开(公告)号：US20200321627A1

公开(公告)日：2020-10-08

申请号：US16907846

申请日：2020-06-22

Applicant: NGK INSULATORS, LTD.

Inventor： Shinji FUJISAKI ,  Takashi RYU ,  Makoto OHMORI

IPC: H01M4/90 ,  H01M8/02 ,  H01M8/12

Abstract: An electrochemical cell includes a fuel electrode, an air electrode containing a perovskite type oxide as a main component, the perovskite type oxide being represented by a general formula ABO3 and containing La and Sr at the A site, and a solid electrolyte layer arranged between the fuel electrode and the air electrode. The air electrode includes a first portion and a second portion, the first portion being located on the most upstream side in a flow direction of an oxidant gas that flows through a surface of the air electrode, the second portion being located on the most downstream side in the flow direction. A first ratio of an La concentration to an Sr concentration detected at the first portion through Auger electron spectroscopy is at least 1.1 times a second ratio of an La concentration to an Sr concentration detected at the second portion through Auger electron spectroscopy.

公开(公告)号：US20200067124A1

公开(公告)日：2020-02-27

申请号：US16672831

申请日：2019-11-04

Applicant: NGK INSULATORS, LTD.

Inventor： Noriyuki OGASAWARA ,  Hirofumi KAN ,  Makoto OHMORI ,  Takashi RYU

IPC: H01M8/2484

Abstract: A cell stack device includes a plurality of electrochemical cells, a manifold, a gas supply portion, and a gas collection portion. The manifold includes a gas supply chamber and a gas collection chamber that extend in a direction in which the electrochemical cells are arranged. A support substrate of an electrochemical cell includes a first gas channel and a second gas channel. The first gas channel is connected to the gas supply chamber, and the second gas channel is connected to the gas collection chamber.

公开(公告)号：US20180102551A1

公开(公告)日：2018-04-12

申请号：US15834527

申请日：2017-12-07

Applicant: NGK INSULATORS, LTD.

Inventor： Makoto OHMORI ,  Shinji FUJISAKI ,  Yoshihiko YAMAMURA ,  Takashi RYU

IPC: H01M4/86 ,  H01M8/1253 ,  H01M4/90

CPC classification number: H01M4/8663 ,  H01M4/8621 ,  H01M4/9033 ,  H01M8/023 ,  H01M8/12 ,  H01M8/1253 ,  H01M2004/8689 ,  H01M2008/1293

Abstract: A fuel cell has an anode, a cathode and a solid electrolyte layer. The cathode contains a perovskite oxide as a main component. The perovskite oxide is expressed by a general formula ABO3 and includes at least Sr at the A site. The solid electrolyte layer is disposed between the anode and the cathode. The cathode includes a surface region which is within 5 μm from a surface opposite the solid electrolyte layer. The surface region contains a main phase comprising the perovskite oxide and a secondary phase comprising strontium sulfate. An occupied surface area ratio of the secondary phase in a cross section of the surface region is greater than or equal to 0.25% to less than or equal to 8.5%.

公开(公告)号：US20140011113A1

公开(公告)日：2014-01-09

申请号：US13926120

申请日：2013-06-25

Applicant: NGK INSULATORS, LTD.

Inventor： Makoto OHMORI ,  Takashi RYU ,  Taku OKAMOTO

IPC: H01M8/02

CPC classification number: H01M8/0271 ,  H01M8/0258 ,  H01M8/1213 ,  H01M8/241 ,  H01M2008/1293

Abstract: The fuel cell includes a porous body including Ni particles, ceramic particles and pores; a power-generating section having an anode active layer formed on the porous body; and a dense interconnector formed on the porous body, and electrically connected with the anode active layer. When the porous body is exposed to a reducing atmosphere, the ceramic particles and the pores is greater than or equal to 14 volume % and less than or equal to 55 volume % in the contacting region, a volume ratio of the Ni particles to the total volume is greater than or equal to 15 volume % and less than or equal to 50 volume % in the contacting region, and a volume ratio of the Ni particles to a sum volume of a volume of the ceramic particles and a volume of the Ni particles is less than or equal to 82.5 volume % in the contacting region.

Abstract translation: 燃料电池包括包括Ni颗粒，陶瓷颗粒和孔的多孔体; 具有形成在所述多孔体上的阳极活性层的发电部; 以及形成在多孔体上并与阳极活性层电连接的致密互连器。 当多孔体暴露于还原气氛时，陶瓷颗粒和孔隙在接触区域中大于或等于14体积％且小于或等于55体积％，Ni颗粒与总体积的体积比 体积在接触区域中大于或等于15体积％且小于或等于50体积％，并且Ni颗粒与陶瓷颗粒的体积的总体积的体积比和Ni颗粒的体积 在接触区域中小于或等于82.5体积％。

公开(公告)号：US20200036015A1

公开(公告)日：2020-01-30

申请号：US16593291

申请日：2019-10-04

Applicant: NGK INSULATORS, LTD.

Inventor： Noriyuki OGASAWARA ,  Hirofumi KAN ,  Makoto OHMORI ,  Takashi RYU

IPC: H01M8/0258 ,  H01M8/2484

Abstract: An electrochemical cell includes a porous support substrate and a power generation element portion. The support substrate includes at least one first gas channel and at least one second gas channel. The first gas channel extends from a first end portion toward a second end portion, and is connected to a gas supply chamber. The second gas channel is connected to the first gas channel on the second end portion side. The second gas channel extends from the second end portion toward the first endportion, and is connected to a gas collection chamber. A ratio (p0/L) of a pitch p0 of a first gas channel and a second gas channel that are adjacent to each other to a distance L between the power generation element portion and a first end surface of the support substrate located on the first end portion side is 3.3 or less.

公开(公告)号：US20200020959A1

公开(公告)日：2020-01-16

申请号：US16544140

申请日：2019-08-19

Applicant: NGK INSULATORS, LTD.

Inventor： Noriyuki OGASAWARA ,  Hirofumi KAN ,  Makoto OHMORI ,  Takashi RYU

IPC: H01M8/0247 ,  H01M8/04014 ,  H01M8/242 ,  H01M8/2483

Abstract: A fuel cell includes a porous support substrate and a power generation element portion. The support substrate includes a first end portion that is linked to a gas supply chamber and a gas collection portion, and a second end portion that is located opposite to the first end portion. The support substrate includes a first gas channel and a second gas channel. The first gas channel extends from the first end portion toward the second end portion. The first gas channel is connected to the gas supply chamber. The second gas channel is connected to the first gas channel on the second end portion side. The second gas channel extends from the second end portion toward the first end portion. The second gas channel is connected to the gas collection chamber. The support substrate is configured such that gas flows in the support substrate and moves between the first gas channel and the second gas channel, in a portion of the support substrate that is farther toward the first end portion side than the power generation element portion is.

公开(公告)号：US20190109328A1

公开(公告)日：2019-04-11

申请号：US16210432

申请日：2018-12-05

Applicant: NGK INSULATORS, LTD.

Inventor： Shinji FUJISAKI ,  Takashi RYU ,  Makoto OHMORI

IPC: H01M4/86 ,  H01M8/1246 ,  H01M8/1213 ,  C04B35/26

Abstract: The electrochemical cell has an anode, a cathode, and a solid electrolyte layer. The cathode contains a perovskite oxide expressed by the general formula ABO3 and including at least one of Sr and La at the A site as a main component. The solid electrolyte layer is disposed between the anode and the cathode. The cathode includes a solid electrolyte layer-side region within 3 μm from a surface of the solid electrolyte layer side. The solid electrolyte layer-side region includes a main phase which is configured by the perovskite oxide and a second phase which is configured by CO3O4 and (Co, Fe)3O4. An occupied surface area ratio of the second phase in a cross section of the solid electrolyte layer-side region is less than or equal to 10.5%.

公开(公告)号：US20190088968A1

公开(公告)日：2019-03-21

申请号：US16183237

申请日：2018-11-07

Applicant: NGK INSULATORS, LTD.

Inventor： Shinji FUJISAKI ,  Takashi RYU ,  Makoto OHMORI

IPC: H01M8/1213 ,  H01M4/90

Abstract: The electrochemical cell includes an anode, a cathode active layer, and a solid electrolyte layer disposed between the anode and the cathode active layer. The cathode active layer includes a first region which is disposed facing the solid electrolyte layer, and a second region which is disposed on the first region. An average particle diameter of first constituent particles which constitute the first region is smaller than an average particle diameter of second constituent particles which constitute the second region.