公开(公告)号：US11081709B2

公开(公告)日：2021-08-03

申请号：US16913011

申请日：2020-06-26

Applicant: PANASONIC CORPORATION ,  MORIMURA SOFC TECHNOLOGY CO., LTD.

Inventor： Shigenori Onuma ,  Kunihiro Ukai ,  Hiroshi Shirahama ,  Takeshi Saito ,  Yosuke Akagi ,  Taiichiro Sakamoto ,  Toshiharu Ooe ,  Toshiharu Otsuka

IPC: H01M8/04228 ,  H01M8/04303 ,  H01M8/04082 ,  H01M8/04089 ,  H01M8/0432 ,  H01M8/04746 ,  H01M8/04014 ,  H01M8/04537 ,  H01M8/0612 ,  H01M8/0662 ,  H01M8/0438 ,  H01M8/124

Abstract: A fuel cell system includes: a fuel cell; a reformer to generate a hydrogen-containing gas; an electric power generation raw material supply unit; a reforming material supply unit configured to supply at least one of reforming water and reforming air, to the reformer; an oxidizing gas supply unit to supply an oxidizing gas to a cathode of the fuel cell; a combustor to ignite an exhaust gas discharged from the fuel cell; and a controller. In an operation stop process of the fuel cell system, the controller causes the oxidizing gas supply unit to supply the oxidizing gas, causes the electric power generation raw material supply unit and the reforming material supply unit to intermittently supply the electric power generation raw material and at least one of the water and the air to the reformer, and causes the ignitor to perform an ignition operation.

公开(公告)号：US20200328436A1

公开(公告)日：2020-10-15

申请号：US16913011

申请日：2020-06-26

Applicant: PANASONIC CORPORATION ,  MORIMURA SOFC TECHNOLOGY CO., LTD.

Inventor： Shigenori ONUMA ,  Kunihiro UKAI ,  Hiroshi SHIRAHAMA ,  Takeshi SAITO ,  Yosuke AKAGI ,  Taiichiro SAKAMOTO ,  Toshiharu OOE ,  Toshiharu OTSUKA

IPC: H01M8/04228 ,  H01M8/04303 ,  H01M8/04082 ,  H01M8/04089 ,  H01M8/0432 ,  H01M8/0438 ,  H01M8/04746 ,  H01M8/04014 ,  H01M8/04537 ,  H01M8/0612 ,  H01M8/0662

Abstract: A fuel cell system includes: a fuel cell; a reformer to generate a hydrogen-containing gas; an electric power generation raw material supply unit; a reforming material supply unit configured to supply at least one of reforming water and reforming air, to the reformer; an oxidizing gas supply unit to supply an oxidizing gas to a cathode of the fuel cell; a combustor to ignite an exhaust gas discharged from the fuel cell; and a controller. In an operation stop process of the fuel cell system, the controller causes the oxidizing gas supply unit to supply the oxidizing gas, causes the electric power generation raw material supply unit and the reforming material supply unit to intermittently supply the electric power generation raw material and at least one of the water and the air to the reformer, and causes the ignitor to perform an ignition operation.

公开(公告)号：US10665870B2

公开(公告)日：2020-05-26

申请号：US15560089

申请日：2016-03-26

Applicant: MORIMURA SOFC TECHNOLOGY CO., LTD.

Inventor： Yoshiaki Sato ,  Makoto Kuribayashi ,  Tomoki Murata ,  Takahiro Masumoto ,  Tomoo Tanaka

IPC: H01M8/0245 ,  H01M8/0236 ,  H01M8/0247 ,  H01M8/0656 ,  H01M8/1231 ,  H01M8/241 ,  G02B1/04 ,  H01M8/12 ,  H01M8/02 ,  H01M8/0202 ,  C25B1/04 ,  H01M8/124

Abstract: An electrochemical reaction unit including a single cell including an electrolyte layer containing solid oxide, and a cathode and an anode which face each other in a first direction with the electrolyte layer intervening therebetween; a current collector disposed on a cathode side of the single cell and having a protrusion protruding toward the cathode; an electrically conductive coat covering a surface of the current collector; and an electrically conductive bonding layer bonding the cathode and the protrusion covered with the coat. In all sections of the protrusion taken in parallel with the first direction, a corner portion of the protrusion covered with the coat is covered with the bonding layer.

公开(公告)号：US11271221B2

公开(公告)日：2022-03-08

申请号：US16618481

申请日：2018-05-31

Applicant: MORIMURA SOFC TECHNOLOGY CO., LTD.

Inventor： Kenta Manabe ,  Takeshi Ohno

IPC: H01M8/0247 ,  H01M8/0273 ,  H01M8/12 ,  C25B1/04 ,  C25B9/73 ,  H01M8/0202 ,  H01M8/0206 ,  H01M8/0256

Abstract: An electrochemical reaction cell stack including a plurality of unit cells and flat plate-shaped electrically conductive members arranged in a first direction. The electrically conductive members include: a first member having a first surface including a first flat portion and a protruding portion and a second member both located on the first side of the first member in the first direction, the second member having a second surface facing the first surface and including a second flat portion and a recessed portion facing the protruding portion. The thickness of the second member is larger than the thickness of the first member in the first direction. The depth of the recessed portion of the second member from the second flat portion is larger than the protruding length of the protruding portion of the first member from the first flat portion in the first direction.

公开(公告)号：US11024856B2

公开(公告)日：2021-06-01

申请号：US16321863

申请日：2017-07-24

Applicant: MORIMURA SOFC TECHNOLOGY CO., LTD.

Inventor： Tatsuya Ono ,  Shiro Inoue

IPC: H01M4/88 ,  H01M8/12 ,  H01M8/02 ,  H01M4/86 ,  H01M8/0236 ,  H01M8/0202 ,  C25B9/00 ,  H01M8/124

Abstract: An electrochemical reaction unit cell including an electrolyte layer containing a solid oxide; a cathode and an anode which face each other in a first direction with the electrolyte layer intervening therebetween; and an intermediate layer disposed between the electrolyte layer and the cathode and containing a first cerium oxide. In the electrochemical reaction unit cell, the cathode includes an active layer containing a strontium-containing perovskite oxide, a second cerium oxide, sulfur, and strontium sulfate and having ion conductivity and electron conductivity, and a grain of the strontium sulfate covers at least a portion of the surface of a grain of the second cerium oxide.

公开(公告)号：US10693174B2

公开(公告)日：2020-06-23

申请号：US14901292

申请日：2014-06-27

Applicant: MORIMURA SOFC TECHNOLOGY CO., LTD.

Inventor： Nobuyuki Hotta ,  Tetsuya Morikawa ,  Hayato Katsuda ,  Hiroshi Sumi

IPC: H01M8/2483 ,  H01M8/0282 ,  H01M8/04082 ,  H01M8/1246 ,  H01M8/2432 ,  H01M8/0271 ,  H01M8/124

Abstract: A flat-plate-type fuel cell stack including a plurality of plate-shaped stacked fuel cells each including an electrolyte layer, an anode, and a cathode. The fuel cell stack includes at least one of a fuel manifold communicating with a space adjacent to the anode and an oxidant manifold communicating with a space adjacent to the cathode. A compression seal member and a glass seal member are disposed around the at least one manifold.

公开(公告)号：US11462759B2

公开(公告)日：2022-10-04

申请号：US16966781

申请日：2019-01-18

Applicant: MORIMURA SOFC TECHNOLOGY CO., LTD.

Inventor： Hideki Nishiwaki ,  Nobuyuki Hotta ,  Tetsuo Suehiro ,  Hiroshi Sumi

IPC: H01M8/1213 ,  H01M4/90 ,  H01M4/88 ,  H01M8/1226 ,  C25B9/23 ,  H01M8/124 ,  H01M8/12

Abstract: A composite including an electrolyte layer containing solid oxide, and at least one electrode selected from a cathode disposed on one side of the electrolyte layer in a first direction and an anode disposed on the other side of the electrolyte layer in the first direction. Either one of two surfaces of the composite located on opposite sides in the first direction satisfies a first requirement that, as viewed in the first direction, a curvature determined on the basis of any three points juxtaposed at intervals of 5 mm is less than 0.0013 (l/mm) and that, as viewed in a second direction perpendicular to the first direction, the curvature is the reciprocal of the radius of an imaginary circle passing through the any three points.

公开(公告)号：US11316176B2

公开(公告)日：2022-04-26

申请号：US16482084

申请日：2017-11-06

Applicant: MORIMURA SOFC TECHNOLOGY CO., LTD.

Inventor： Yuki Ota ,  Takafumi Shichida ,  Kenta Manabe

IPC: H01M8/0265 ,  H01M8/2483 ,  H01M8/12

Abstract: To prevent a reduction in the performance of a unit cell due to a gas shortage in a cathode chamber. An electrochemical reaction unit includes a unit cell, a cathode-side member, and an anode-side member. The electrochemical reaction unit satisfies the following condition on at least one of supply and discharge sides of the cathode chamber. Condition: the distance between the midpoint between opposite end points of a cathode-side opening group including an opening of a cathode-side communication channel and the midpoint (specific point) between opposite end points of an anode-side supply opening group including an opening of an anode-side supply communication channel in a direction parallel to an inner circumferential surface of a cathode chamber hole is shorter than the distance between the centroid of a cathode-side gas channel hole and the specific point in the direction parallel to the inner circumferential surface of the cathode chamber hole.

公开(公告)号：US11233250B2

公开(公告)日：2022-01-25

申请号：US16482453

申请日：2017-12-07

Applicant: MORIMURA SOFC TECHNOLOGY CO., LTD.

Inventor： Takafumi Shichida ,  Yuki Ota

IPC: H01M8/0258 ,  H01M8/1231 ,  H01M8/2483 ,  H01M8/04082 ,  H01M8/04746 ,  H01M8/2425 ,  H01M8/124

Abstract: An electrochemical reaction unit including a unit cell, a cathode-side member, and an anode-side member. The sum La of the distance Lai between a virtual straight line representing a center position of the unit cell and the midpoint between opposite end points of a cathode-side supply opening group and the distance Lao between the virtual straight line and the midpoint between opposite end points of a cathode-side discharge opening group is smaller than the sum Lf of the distance Lfi between the virtual straight line and the midpoint between opposite end points of an anode-side supply opening group including an opening of an anode-side supply communication channel and the distance Lfo between the virtual straight line and the midpoint between opposite end points of an anode-side discharge opening group including an opening of an anode-side discharge communication channel.

公开(公告)号：US11223060B2

公开(公告)日：2022-01-11

申请号：US16485557

申请日：2017-11-15

Applicant: MORIMURA SOFC TECHNOLOGY CO., LTD.

Inventor： Shiro Inoue ,  Makoto Kuribayashi ,  Tatsuya Ono

IPC: H01M8/1213 ,  H01M8/1253 ,  C25B9/08 ,  C25B9/19 ,  H01M8/124

Abstract: An electrochemical reaction single cell including an electrolyte layer containing Zr and at least one of Y, Sc, and Ca, an anode disposed on one side of the electrolyte layer, a cathode containing Sr and Co and disposed on the other side of the electrolyte layer, and an intermediate layer disposed between the electrolyte layer and the cathode. In the electrochemical reaction single cell, an SrZrO3 integrated value calculated by a predetermined method is 600 to 10,300. Also disclosed is an electrochemical reaction cell stack including a plurality of electrochemical reaction single cells.