公开(公告)号：US20180294489A1

公开(公告)日：2018-10-11

申请号：US15570887

申请日：2016-04-27

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tetsuya MORIKAWA

IPC: H01M8/0286 ,  H01M8/1007 ,  H01M8/0206 ,  H01M8/0247 ,  H01M8/0273

CPC classification number: H01M8/0286 ,  H01M8/0206 ,  H01M8/0247 ,  H01M8/0273 ,  H01M8/1007 ,  H01M8/242 ,  H01M2008/1293

Abstract: A fuel cell electricity generation unit including a single cell; first and second interconnectors; a separator; a metal frame member disposed between the separator and the first interconnector; and a gas sealing member having a contact portion in contact with the surfaces of the separator and the second interconnector. The unit has a contact overlap region overlapping with the contact portion in a first direction, and each of the gas sealing member, the separator, the frame member, the first interconnector, and the second interconnector is present in the contact overlap region. At least one of a first weld portion sealing between the separator and the frame member and a second weld portion sealing between the frame member and the first interconnector is formed at a position whose distance from the periphery of the single cell is greater than the distance between the periphery and the contact overlap region.

公开(公告)号：US20170294673A1

公开(公告)日：2017-10-12

申请号：US15512923

申请日：2015-08-28

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tetsuya MORIKAWA ,  Nobuyuki HOTTA

IPC: H01M8/248 ,  H01M8/126 ,  H01M8/1253 ,  H01M4/90

CPC classification number: H01M8/248 ,  H01M4/9033 ,  H01M4/9066 ,  H01M8/02 ,  H01M8/12 ,  H01M8/1253 ,  H01M8/126 ,  H01M8/24 ,  H01M8/2432 ,  H01M2008/1293

Abstract: A fuel cell stack having a structure in which a plurality of single fuel cells C(1) and a plurality of interconnectors (5) are disposed alternately between a pair of end members and such that a junction member J composed of an elastic member (20) and an electrically conductive member (21) is disposed in a space (3a) formed between a first end member (3) and a first interconnector (5(1)). A portion of the electrically conductive member (21) is disposed between the first end member (3) and the elastic member (20), and another portion of the electrically conductive member (21) is disposed between the first interconnector (5(1)) and the elastic member (20); and the first end member (3) and the first interconnector (5(1)) are electrically connected through the electrically conductive member (21).

公开(公告)号：US20160293980A1

公开(公告)日：2016-10-06

申请号：US15037422

申请日：2014-12-10

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tetsuya MORIKAWA ,  Nobuyuki HOTTA

IPC: H01M8/04082 ,  H01M8/04007 ,  H01M8/2425 ,  H01M8/04014

CPC classification number: H01M8/248 ,  H01M8/04014 ,  H01M8/04074 ,  H01M8/04089 ,  H01M8/2425 ,  H01M8/2457 ,  H01M8/2483 ,  H01M2008/1293

Abstract: A fuel cell stack according to one aspect of the present invention has a plurality of fuel cells stacked together and a plurality of manifolds passing through the fuel cells in a stacking direction thereof so as to allow at least one of the fuel gas and the oxidant gas to flow therethrough. The manifolds include cold gas manifolds adapted to introduce the fuel gas or oxidant gas from the outside into the fuel cell stack, hot gas manifolds adapted to discharge the fuel gas or oxidant gas from the fuel cells, and a heat-exchanged gas manifold adapted to feed the fuel gas or oxidant gas that has been heat-exchanged in a heat exchange part. Every one of the cold gas manifolds is adjacent to any of the hot gas manifolds. One of the hot gas manifolds is non-adjacent to any other one of the hot gas manifolds.

Abstract translation: 根据本发明的一个方面的燃料电池堆具有堆叠在一起的多个燃料电池和沿堆叠方向通过燃料电池的多个歧管，以便允许至少一个燃料气体和氧化剂气体 流过。 歧管包括适于将燃料气体或氧化剂气体从外部引入燃料电池堆的冷气歧管，适于从燃料电池排出燃料气体或氧化剂气体的热气歧管以及适于 供给在热交换部中进行了热交换的燃料气体或氧化剂气体。 每个冷气体歧管都与任何热气体歧管相邻。 其中一个热气体歧管与热气体歧管中的任一个不相邻。

公开(公告)号：US20180040906A1

公开(公告)日：2018-02-08

申请号：US15554134

申请日：2016-03-04

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Nobuyuki HOTTA ,  Hiroaki YAGI ,  Tetsuya MORIKAWA

IPC: H01M8/0256 ,  H01M8/2465 ,  H01M8/12 ,  H01M8/2432

CPC classification number: H01M8/0256 ,  H01M8/0202 ,  H01M8/0204 ,  H01M8/0247 ,  H01M8/12 ,  H01M8/24 ,  H01M8/2432 ,  H01M8/2465 ,  H01M8/248 ,  H01M2008/1293

Abstract: In a fuel cell stack (1), a connection region SR in which a protrusion (67) of a current collecting plate (9) and a second output terminal (15) are electrically connected is formed within a belt-like range, namely, a connectable range SKH, between a first tangential line L1 tangential to the circumference of one through hole (10c) and a second tangential line L2 tangential to the circumference of the other through hole (10d). Therefore, since the flow of electric current generated in the fuel cell stack (1) is unlikely to be obstructed by the through holes (10), electric current is easily supplied to the second output terminal (15) from a current collecting section (65) of the current collecting plate (9) through the protrusion (67). As a result, a voltage loss is small, thereby improving the performance of the fuel cell stack (1).

公开(公告)号：US20160056492A1

公开(公告)日：2016-02-25

申请号：US14780827

申请日：2014-02-05

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Shunsuke TSUGA ,  Takafumi SHICHIDA ,  Tetsuya MORIKAWA ,  Nobuyuki HOTTA

IPC: H01M8/24 ,  H01M8/04

CPC classification number: H01M8/2457 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/04022 ,  H01M8/04074 ,  H01M8/241 ,  H01M8/2425 ,  H01M8/2432 ,  H01M8/247 ,  H01M8/2483 ,  H01M2008/1293

Abstract: A fuel gas supply path in a fuel cell stack includes in series a first path, a second path, and a third path. In the second path, two inlets of the fuel gas in each of power generating cells included in the second path are located at a first position PA and a second position PB, and the position of one outlet of the fuel gas in each power generating cell is located at a third position PC. In the third path, an inlet of the fuel gas in each of power generating cells included in the third path is located at a position coinciding with the third position PC when the power generating cells are viewed in the stacking direction, and an outlet of the fuel gas in each power generating cell is located at a position between the first position PA and the second position PB.

Abstract translation: 燃料电池堆中的燃料气体供给路径包括串联的第一路径，第二路径和第三路径。 在第二路径中，包括在第二路径中的每个发电单元中的燃料气体的两个入口位于第一位置PA和第二位置PB，并且每个发电单元中的燃料气体的一个出口的位置 位于PC的第三个位置。 在第三路径中，当沿堆叠方向观察发电单元时，包括在第三路径中的每个发电单元中的燃料气体的入口位于与第三位置PC重合的位置处， 每个发电单元中的燃料气体位于第一位置PA和第二位置PB之间的位置。

公开(公告)号：US20140295308A1

公开(公告)日：2014-10-02

申请号：US14224339

申请日：2014-03-25

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Shunsuke TSUGA ,  Takafumi SHICHIDA ,  Tetsuya MORIKAWA ,  Nobuyuki HOTTA

IPC: H01M8/04 ,  H01M8/24

CPC classification number: H01M8/04014 ,  H01M8/0267 ,  H01M8/04067 ,  H01M8/04074 ,  H01M8/2405 ,  H01M8/242 ,  H01M8/2465 ,  H01M8/247 ,  H01M8/248

Abstract: A fuel cell stack (1) includes a plurality of stacked power generation cells (3), a heat exchange unit (7) provided between adjacent two of the power generation cells, a fuel gas supply path arranged to supply the power generation cells with a fuel gas, and an oxidant gas supply path (3, 7, 33, 34, 38) arranged to supply the power generation cells with an oxidant gas, wherein the fuel gas supply path includes in series a first path (7, 31) passing through the heat exchange unit (7), a second path (3, 32, 35, 37) passing through some of the plurality of power generation cells (3) in parallel, and a third path (3, 32, 36) passing through the other power generation cells in parallel.

Abstract translation: 燃料电池堆（1）包括多个层叠的发电单元（3），设置在相邻的两个发电单元之间的热交换单元（7），设置成向发电单元提供一个 燃料气体和设置成向发电单元供给氧化剂气体的氧化剂气体供给路径（3,7,33,34,38），其中所述燃料气体供给路径串联包括通过的第一路径（7,31） 通过所述热交换单元（7），平行地穿过所述多个发电单元（3）中的一些的第二路径（3,32,35,37）和通过所述多个发电单元（3）的第三路径（3,32,36） 其他发电电池并联。