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：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.

公开(公告)号：US11289727B2

公开(公告)日：2022-03-29

申请号：US16488819

申请日：2018-01-31

Applicant: MORIMURA SOFC TECHNOLOGY CO., LTD.

Inventor： Satoru Ishida ,  Tatsuya Ono

IPC: H01M8/0662 ,  H01M8/2432 ,  H01M8/0282 ,  H01M8/12 ,  H01M8/242 ,  H01M8/124

Abstract: An electrochemical reaction unit including a unit cell including an electrolyte layer, and a cathode and an anode that face each other in a first direction with the electrolyte layer intervening therebetween; and a felt member containing a ceramic material or a metal and a silica component. The felt member includes both a first crystal structure and a second crystal structure, which is an SiO2 crystal structure. Also disclosed is an electrochemical reaction cell stack including a plurality of electrochemical reaction units disposed in the first direction, at least one of the electrochemical reaction units being the above-described unit. Yet further disclosed is a method for producing the electrochemical reaction unit.

公开(公告)号：US10998568B2

公开(公告)日：2021-05-04

申请号：US16486310

申请日：2018-02-15

Applicant: MORIMURA SOFC TECHNOLOGY CO., LTD.

Inventor： Shiro Inoue ,  Yuko Hisano ,  Tatsuya Ono

IPC: H01M8/00 ,  H01M8/1213 ,  H01M8/2432 ,  C25B13/04 ,  H01M4/86 ,  H01M8/1253 ,  C25B1/04 ,  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. The electrochemical reaction single cell exhibits an interface contact ratio of 25.5% to 68.6%, wherein the interface contact ratio is the ratio of the sum of the lengths of portions containing neither SrZrO3 nor cavities of an interfacial surface of the intermediate layer on the electrolyte layer side to the total length of the interfacial surface. Also disclosed is an electrochemical reaction cell stack including a plurality of electrochemical reaction single cells, at least one of which is the above described electrochemical reaction single cell.

公开(公告)号：US10756375B2

公开(公告)日：2020-08-25

申请号：US16080448

申请日：2017-05-19

Applicant: MORIMURA SOFC TECHNOLOGY CO., LTD.

Inventor： Shiro Inoue ,  Tatsuya Ono

IPC: H01M8/1246 ,  H01M8/02 ,  H01M4/86 ,  H01M4/90 ,  H01M8/1213 ,  H01M8/1253 ,  H01M4/88 ,  H01M8/2425 ,  H01M8/124

Abstract: An electrochemical reaction unit cell including an electrolyte layer containing Zr, an anode disposed on one side of the electrolyte layer in a first direction, a cathode containing Sr and disposed on another side of the electrolyte layer in the first direction, and a reaction preventing layer disposed between the electrolyte layer and the cathode. The reaction preventing layer contains Zr in an amount of 0.015 wt % to 1 wt %.

公开(公告)号：US11152636B2

公开(公告)日：2021-10-19

申请号：US16488368

申请日：2018-01-31

Applicant: MORIMURA SOFC TECHNOLOGY CO., LTD.

Inventor： Satoru Ishida ,  Tatsuya Ono

IPC: H01M8/2432 ,  H01M8/0252 ,  H01M8/0258 ,  H01M8/12 ,  H01M8/124

Abstract: An electrochemical reaction unit including a unit cell including an electrolyte layer, and a cathode and an anode that face each other in a first direction with the electrolyte layer intervening therebetween; and a felt member containing a ceramic material or a metal and a silica component. The felt member has an Si content of 0.9 mass % to 13.2 mass %. Also disclosed is an electrochemical reaction cell stack including a plurality of electrochemical reaction units, at least one of the units being the above-described electrochemical reaction unit.

公开(公告)号：US11027982B2

公开(公告)日：2021-06-08

申请号：US16332042

申请日：2017-09-11

Applicant: MORIMURA SOFC TECHNOLOGY CO., LTD.

Inventor： Satoru Ishida ,  Tomoki Murata ,  Ryoji Tanimura ,  Tatsuya Ono ,  Nobuyuki Hotta

IPC: C01B33/42 ,  H01M8/02 ,  C25B9/00 ,  C25B9/70 ,  H01M8/2457 ,  H01M8/2483 ,  H01M8/242 ,  H01M8/12

Abstract: A mica-made member having a crystal structure exhibiting an intensity peak of KMg3(Si3Al)O10(OH)2 and an intensity peak of Mg2SiO4 in X-ray diffractometry (XRD). Also disclosed is an electrochemical reaction unit including a structural member formed of the mica-made member and an electrochemical reaction cell stack.