公开(公告)号：US20140162149A1

公开(公告)日：2014-06-12

申请号：US14100101

申请日：2013-12-09

Applicant: TOTO LTD.

Inventor： Hiroshi NIIMI ,  Akira ISHIGURO ,  Shigeru ANDO ,  Akira KAWAKAMI ,  Megumi SHIMAZU ,  Yuya TAKAHASHI

IPC: H01M8/22

CPC classification number: H01M4/8885 ,  H01M4/8621 ,  H01M4/8652 ,  H01M4/8828 ,  H01M4/8889 ,  H01M4/9033 ,  H01M8/1213 ,  H01M8/1253 ,  H01M2008/1293 ,  Y02E60/521 ,  Y02E60/525 ,  Y02P70/56

Abstract: Disclosed is a durable solid oxide fuel cell that is less likely to have a problem of a conventional solid oxide fuel cell that an air electrode containing a peroviskite oxide, when exposed to a reducing atmosphere, is separated at the stop of operation, especially shutdown. The solid oxide fuel cell includes an air electrode that is obtained by firing a compact containing a perovskite oxide and sulfur element. The content of the sulfur element in the air electrode as fresh after firing or before the start of power generation is in the range of 50 ppm to 3,000 ppm. The separation of the air electrode is effectively suppressed at the shutdown operation.

Abstract translation: 公开了一种持久的固体氧化物燃料电池，其不太可能存在常规的固体氧化物燃料电池的问题，即在暴露于还原性气氛时，含有渗浮体氧化物的空气电极在操作停止时分离，特别是关闭。 固体氧化物型燃料电池包括通过烧结含有钙钛矿氧化物和硫元素的压块而获得的空气电极。 空气电极中的硫元素在烧制之后或发电开始之前的新鲜含量在50ppm至3,000ppm的范围内。 在关机操作时有效地抑制空气电极的分离。

公开(公告)号：US20180159156A1

公开(公告)日：2018-06-07

申请号：US15827857

申请日：2017-11-30

Applicant: TOTO LTD.

Inventor： Naoki WATANABE ,  Toshiharu OTSUKA ,  Akira KAWAKAMI ,  Fumio TSUBOI ,  Takuya MATSUO ,  Takuya HOSHIKO ,  Shuhei TANAKA

IPC: H01M8/0612 ,  H01M8/04014 ,  H01M8/04007 ,  H01M8/2475 ,  H01M8/2485

CPC classification number: H01M8/0618 ,  F28D2021/0043 ,  H01M8/004 ,  H01M8/04014 ,  H01M8/04074 ,  H01M8/04089 ,  H01M8/0625 ,  H01M8/243 ,  H01M8/2475 ,  H01M8/2484 ,  H01M8/2485 ,  H01M8/249 ,  H01M2008/1293 ,  H01M2300/0074

Abstract: To provide a fuel cell stack device that is applicable to miniaturization of the device and does not require a pipe for discharging off-gas up to a combustion section. A fuel cell stack device including: a first manifold 2a for supplying fuel gas supplied from a reformer 12 to a plurality of fuel cells provided in a first cell stack from above, the first manifold being connected to upper ends of the plurality of fuel cells provided in the first cell stack 10a; and a second manifold 2b for recovering fuel gas discharged from the first cell stack, and supplying the recovered fuel gas to the plurality of fuel cells provided in the second cell stack from below, the second manifold being connected to lower ends of the plurality of fuel cells provided in the second cell stack 10b.

公开(公告)号：US20130183594A1

公开(公告)日：2013-07-18

申请号：US13728021

申请日：2012-12-27

Applicant: Toto Ltd.

Inventor： Hiroshi NIIMI ,  Akira KAWAKAMI ,  Shigeru ANDO ,  Masayoshi YUZURIHARA ,  Ryoichi NISHIMIZU

IPC: H01M4/86 ,  H01M12/06

CPC classification number: H01M4/8657 ,  H01M4/8889 ,  H01M4/9033 ,  H01M4/9058 ,  H01M4/9066 ,  H01M8/0232 ,  H01M8/0236 ,  H01M8/0243 ,  H01M12/06 ,  H01M2008/1293

Abstract: Disclosed is a solid oxide fuel battery cell having a high initial power generation performance and a good power generation durability while ensuring adhesion between an air electrode and a current collector. The solid oxide fuel battery cell includes a solid electrolyte, a fuel electrode, an air electrode, and a current collector provided on the surface of the air electrode, wherein the air electrode is formed of lanthanum ferrite perovskite oxides, lanthanum cobalt perovskite oxides, or samarium cobalt perovskite oxides, and the current collector is porous including silver, palladium, and an oxide and has an average porosity of 20% to 70% in a portion other than a portion near a boundary between the current collector and the air electrode and, in the near-boundary portion, an average porosity of not less than 50% of the average porosity of the portion other than the near-boundary portion.

Abstract translation: 公开了一种固体氧化物燃料电池，其具有高的初始发电性能和良好的发电耐久性，同时确保空气电极和集电器之间的粘附。 固体氧化物燃料电池单元包括设置在空气电极表面上的固体电解质，燃料电极，空气电极和集电器，其中空气电极由铁酸镧钙钛矿氧化物，镧钴钙钛矿氧化物或 钐钴钙钛矿氧化物，并且集电体是多孔的，包括银，钯和氧化物，并且在除了集电器和空气电极之间的边界附近的部分之外的平均孔隙率为20％至70％，并且， 在近边界部分中，平均孔隙率不小于近边界部分以外的部分的平均孔隙率的50％。