公开(公告)号：US20190267658A1

公开(公告)日：2019-08-29

申请号：US16342844

申请日：2017-09-26

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Kenta MANABE ,  Nobuyuki HOTTA ,  Takafumi SHICHIDA ,  Yuki OTA

IPC: H01M8/2465 ,  H01M8/12 ,  H01M8/2425 ,  H01M8/04007

Abstract: An electrochemical reaction cell stack includes an electrochemical reaction block including three or more electrochemical reaction units arranged in a first direction; a first heat-absorbing member which is disposed on one side of the electrochemical reaction block in the first direction and absorbs heat generated from the electrochemical reaction block; and a second heat-absorbing member which is disposed on the other side of the electrochemical reaction block in the first direction and absorbs heat generated from the electrochemical reaction block. An upstream electrochemical reaction unit is disposed between the first heat-absorbing member and the downstream electrochemical reaction unit disposed closest to the first heat-absorbing member, and an upstream electrochemical reaction unit is disposed between the second heat-absorbing member and the downstream electrochemical reaction unit disposed closest to the second heat-absorbing member.

公开(公告)号：US20190288322A1

公开(公告)日：2019-09-19

申请号：US16345104

申请日：2017-09-28

Applicant: NGK SPARK PLUG CO., LTD

Inventor： Kenta MANABE ,  Nobuyuki HOTTA ,  Takafumi SHICHIDA ,  Yuki OTA

IPC: H01M8/2428 ,  H01M8/12

Abstract: An electrochemical reaction cell stack includes an electrochemical reaction block including three or more electrochemical reaction units arranged in a first direction. The electrochemical reaction block includes a gas introduction flow passage, a gas discharge flow passage, and a gas transfer flow passage. An upstream electrochemical reaction unit includes an upstream introduction communication passage for connecting an upstream anode chamber to the gas introduction flow passage, and an upstream discharge communication passage for connecting the upstream anode chamber to the gas transfer flow passage. Similarly, a downstream electrochemical reaction unit includes a downstream introduction communication passage and a downstream discharge communication passage. In each of two or more downstream electrochemical reaction units, the total volume of the downstream introduction communication passage and the downstream discharge communication passage is smaller than the total volume of the upstream introduction communication passage and the upstream discharge communication passage.

公开(公告)号：US20200099065A1

公开(公告)日：2020-03-26

申请号：US16618481

申请日：2018-05-31

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Kenta MANABE ,  Takeshi OHNO

IPC: H01M8/0247 ,  H01M8/12 ,  H01M8/0273 ,  C25B1/08 ,  C25B9/20

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：US20180323448A1

公开(公告)日：2018-11-08

申请号：US15771010

申请日：2016-10-25

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Kenta MANABE ,  Hiroaki YAGI ,  Nobuyuki HOTTA ,  Shunta OHASHI

IPC: H01M8/0247 ,  H01M8/12 ,  H01M8/0206 ,  H01M8/026 ,  H01M8/0265

Abstract: An interconnector-electrochemical reaction unit cell composite body includes an electrochemical reaction unit cell and an interconnector. The interconnector has a plurality of combinations of protrusions protruding in the first direction and recesses provided on a side opposite the protrusions in the first direction and being concave toward the protrusions. At least one of the combinations is configured such that, as viewed in the first direction, the bottom of the recess is located on the side toward the open end of the recess. In a section parallel to the first direction, the recess is located within a width t2 of the protrusion in the second direction orthogonal to the first direction, and the width t1 of the recess in the second direction is smaller than the width t2.