公开(公告)号：US10862134B2

公开(公告)日：2020-12-08

申请号：US16037366

申请日：2018-07-17

Applicant: NGK INSULATORS, LTD.

Inventor： Makoto Ohmori ,  Ayano Kobayashi ,  Shinji Fujisaki

IPC: H01M8/0217 ,  H01M4/86 ,  B01J23/00 ,  B01J23/83 ,  B01J35/00 ,  C04B35/01 ,  C04B35/26 ,  H01M4/90 ,  H01M8/0202 ,  B01J27/188 ,  H01M8/124

Abstract: A solid oxide fuel cell includes a cathode including a complex oxide having a perovskite structure expressed by the formula ABO3, an anode, and a solid electrolyte layer disposed between the cathode and the anode. The cathode includes phosphorus, chromium and boron, a content amount of the phosphorus in the cathode is at least 10 ppm and no more than 50 ppm, a content amount of the chromium in the cathode is at least 50 ppm and no more than 500 ppm, and a content amount of the boron in the cathode is at least 5 ppm and no more than 50 ppm.

公开(公告)号：US10749187B2

公开(公告)日：2020-08-18

申请号：US16233477

申请日：2018-12-27

Applicant: NGK INSULATORS, LTD.

Inventor： Makoto Ohmori ,  Ayano Kobayashi

IPC: H01M4/90 ,  C04B35/01 ,  C04B35/26 ,  H01M4/86 ,  H01M8/1213 ,  H01M8/1246 ,  H01M8/124

Abstract: A cathode material used in an anode and a cathode contains (Co, Fe)3O4 and a perovskite type oxide that is expressed by the general formula ABO3 and includes at least one of La and Sr at the A site. A content ratio of (Co, Fe)3O4 in the cathode material is at least 0.23 wt % and no more than 8.6 wt %.

公开(公告)号：US09640825B2

公开(公告)日：2017-05-02

申请号：US14661402

申请日：2015-03-18

Applicant: NGK INSULATORS, LTD.

Inventor： Yohei Miura ,  Makoto Ohmori ,  Ayano Kobayashi ,  Takafumi Terahai

IPC: H01M8/12 ,  H01M8/1213 ,  H01M8/1004 ,  H01M8/1253 ,  H01M4/86 ,  H01M4/90 ,  H01M8/124

CPC classification number: H01M8/1213 ,  H01M4/8605 ,  H01M4/8621 ,  H01M4/8663 ,  H01M4/9066 ,  H01M8/1004 ,  H01M8/1253 ,  H01M2008/1293 ,  H01M2300/0077 ,  Y02E60/521 ,  Y02E60/525 ,  Y02P70/56

Abstract: A fuel cell includes an anode, a solid electrolyte layer, a barrier layer, and a cathode. The anode includes a transition metal and an oxygen ion conductive material. In the interface region within 3 micrometers from the interface with the solid electrolyte layer of the anode after reduction, the content rate of silicon is less than or equal to 200 ppm, the content rate of phosphorous is less than or equal to 50 ppm, the content rate of chromium is less than or equal to 100 ppm, the content rate of boron is less than or equal to 100 ppm, and the content rate of sulfur is less than or equal to 100 ppm.

公开(公告)号：US09017898B2

公开(公告)日：2015-04-28

申请号：US13870442

申请日：2013-04-25

Applicant: NGK Insulators, Ltd.

Inventor： Yohei Miura ,  Makoto Ohmori ,  Ayano Kobayashi ,  Takafumi Terahai

IPC: H01M4/36 ,  H01M8/10 ,  H01M8/12 ,  H01M4/86

CPC classification number: H01M8/1213 ,  H01M4/8605 ,  H01M4/8621 ,  H01M4/8663 ,  H01M4/9066 ,  H01M8/1004 ,  H01M8/1253 ,  H01M2008/1293 ,  H01M2300/0077 ,  Y02E60/521 ,  Y02E60/525 ,  Y02P70/56

Abstract: A fuel cell (10) includes an anode (11), a solid electrolyte layer (12), a barrier layer (13), and a cathode (14). The anode (11) includes a transition metal and an oxygen ion conductive material. In the interface region (R) within 3 micrometers from the interface with the solid electrolyte layer (12) of the anode (11) after reduction, the content rate of silicon is less than or equal to 200 ppm, the content rate of phosphorous is less than or equal to 50 ppm, the content rate of chrome is less than or equal to 100 ppm, the content rate of boron is less than or equal to 100 ppm, and the content rate of sulfur is less than or equal to 100 ppm.

Abstract translation: 燃料电池（10）包括阳极（11），固体电解质层（12），阻挡层（13）和阴极（14）。 阳极（11）包括过渡金属和氧离子导电材料。 在与还原后的阳极（11）的固体电解质层（12）的界面3微米以内的界面区域（R）中，硅的含有率小于等于200ppm，磷的含有率为 小于或等于50ppm，铬的含量比例小于或等于100ppm，硼含量小于或等于100ppm，硫含量小于或等于100ppm 。

公开(公告)号：US09887424B2

公开(公告)日：2018-02-06

申请号：US14487625

申请日：2014-09-16

Applicant: NGK INSULATORS, LTD.

Inventor： Ayano Kobayashi ,  Makoto Ohmori ,  Mariko Okamoto

IPC: H01M4/90 ,  H01M8/12 ,  H01M8/1213 ,  H01M4/86 ,  H01M8/0236 ,  C04B35/01 ,  C04B35/45 ,  H01M8/124 ,  H01M4/88 ,  H01M8/1253

CPC classification number: H01M4/9033 ,  C04B35/01 ,  C04B35/4504 ,  C04B2235/3227 ,  C04B2235/3272 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5463 ,  C04B2235/656 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/768 ,  C04B2235/78 ,  C04B2235/85 ,  C04B2235/9607 ,  H01M4/8621 ,  H01M4/8828 ,  H01M4/8889 ,  H01M8/0236 ,  H01M8/12 ,  H01M8/1213 ,  H01M8/1253 ,  H01M2008/1293 ,  Y02E60/525 ,  Y02P70/56

Abstract: A solid oxide fuel cell comprises a solid electrolyte layer, a barrier layer, and a cathode. The cathode includes a cathode current collecting layer and a cathode active layer. The cathode active layer includes a plurality of micro-cracks in a surface region within a predetermined distance from the interface between the barrier layer and the cathode active layer.

公开(公告)号：US09876235B2

公开(公告)日：2018-01-23

申请号：US14335033

申请日：2014-07-18

Applicant: NGK INSULATORS, LTD.

Inventor： Ayano Kobayashi ,  Makoto Ohmori

IPC: H01M4/86 ,  H01M4/90 ,  H01M8/12 ,  H01M8/1213 ,  B32B18/00 ,  C04B35/01 ,  C04B35/26 ,  H01M8/124

CPC classification number: H01M4/9033 ,  B32B18/00 ,  C04B35/01 ,  C04B35/26 ,  C04B2235/3213 ,  C04B2235/3227 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/448 ,  C04B2235/80 ,  C04B2237/34 ,  H01M8/1213 ,  H01M2004/8689 ,  H01M2008/1293 ,  H01M2300/0074

Abstract: A fuel cell includes an anode, a cathode and a solid electrolyte layer that is disposed between the anode and the cathode. The cathode includes a main phase and a sub phase. The main phase is composed mostly of perovskite oxide which is expressed by the general formula ABO3 and includes at least Sr at the A site. The sub phase is composed mostly of strontium sulfate. An occupied area ratio of the sub phase in a cross section of the cathode is no more than 10.2%.

公开(公告)号：US10312525B2

公开(公告)日：2019-06-04

申请号：US14819572

申请日：2015-08-06

Applicant: NGK INSULATORS, LTD.

Inventor： Makoto Ohmori ,  Ayano Kobayashi

IPC: H01M4/90 ,  H01M8/12 ,  H01M8/1246 ,  H01M8/1213 ,  H01M4/86 ,  C04B35/01 ,  C04B35/26 ,  H01M8/124

Abstract: A cathode material used in an anode and a cathode contains (Co,Fe)3O4 and a perovskite type oxide that is expressed by the general formula ABO3 and includes at least one of La and Sr at the A site. A content ratio of (Co,Fe)3O4 in the cathode material is at least 0.23 wt % and no more than 8.6 wt %.

公开(公告)号：US10056620B2

公开(公告)日：2018-08-21

申请号：US14304434

申请日：2014-06-13

Applicant: NGK INSULATORS, LTD.

Inventor： Makoto Ohmori ,  Ayano Kobayashi ,  Shinji Fujisaki

IPC: H01M4/86 ,  H01M4/90 ,  H01M8/0217 ,  B01J23/00 ,  B01J23/83 ,  B01J35/00 ,  C04B35/01 ,  C04B35/26 ,  H01M8/0202 ,  H01M8/124 ,  B01J27/188

CPC classification number: H01M4/8663 ,  B01J23/002 ,  B01J23/83 ,  B01J27/188 ,  B01J35/0033 ,  B01J2523/00 ,  C04B35/01 ,  C04B35/26 ,  C04B2235/3213 ,  C04B2235/3227 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/72 ,  C04B2235/725 ,  C04B2235/727 ,  C04B2235/768 ,  H01M4/9033 ,  H01M8/0202 ,  H01M8/0217 ,  H01M2008/1293 ,  Y02E60/50 ,  Y02E60/525 ,  B01J2523/24 ,  B01J2523/3706 ,  B01J2523/842 ,  B01J2523/845 ,  B01J2523/305 ,  B01J2523/51 ,  B01J2523/67 ,  B01J2523/847

Abstract: A solid oxide fuel cell includes a cathode, and an anode, and a solid electrolyte layer disposed between the cathode and the anode. The cathode includes a complex oxide having a perovskite structure expressed by the general formula ABO3. A standard deviation value for the atomic percentage of respective elements at the A site measured using energy dispersive X-ray spectroscopy at 10 spots in a single field on the sectional surface of the cathode is no more than 10.4.

公开(公告)号：US10033059B2

公开(公告)日：2018-07-24

申请号：US15350671

申请日：2016-11-14

Applicant: NGK INSULATORS, LTD.

Inventor： Makoto Ohmori ,  Ayano Kobayashi ,  Shinji Fujisaki

IPC: H01M8/12 ,  H01M8/1253 ,  B32B18/00 ,  C04B35/486 ,  C04B35/50 ,  H01M8/1213 ,  H01M8/126 ,  H01M8/124

Abstract: A fuel cell comprises an anode, a cathode, and a solid electrolyte layer. The solid electrolyte layer includes a first region disposed on the anode and a second region disposed between the first region and the cathode. The ratio of the ceria-based material in the first region is less than or equal to 0.5%. The ratio of the tetragonal crystal zirconia in the first region is greater than or equal to 3.0%. The atomic weight ratio of nickel to zirconia in the first region is less than or equal to 3.0 at %. The ratio of the ceria-based material in the second region is greater than or equal to 1.0%. The ratio of the tetragonal crystal zirconia in the second region is less than or equal to 0.1%.

公开(公告)号：US09882221B2

公开(公告)日：2018-01-30

申请号：US14487591

申请日：2014-09-16

Applicant: NGK INSULATORS, LTD.

Inventor： Ayano Kobayashi ,  Makoto Ohmori ,  Mariko Okamoto

IPC: H01M4/90 ,  H01M8/12 ,  H01M8/1213 ,  B32B18/00 ,  H01M8/0236 ,  H01M4/86 ,  H01M8/124

CPC classification number: H01M4/9033 ,  B32B18/00 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2237/34 ,  C04B2237/704 ,  H01M4/8621 ,  H01M8/0236 ,  H01M8/12 ,  H01M8/1213 ,  H01M2004/8689 ,  H01M2008/1293

Abstract: A solid oxide fuel cell comprises a solid electrolyte layer, a barrier layer, and a cathode. The cathode includes a cathode current collecting layer and a cathode active layer. The cathode active layer includes a plurality of micro-cracks in an inner region separated respectively from the interface and the interface.