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公开(公告)号:US20180102551A1
公开(公告)日:2018-04-12
申请号:US15834527
申请日:2017-12-07
Applicant: NGK INSULATORS, LTD.
Inventor: Makoto OHMORI , Shinji FUJISAKI , Yoshihiko YAMAMURA , Takashi RYU
IPC: H01M4/86 , H01M8/1253 , H01M4/90
CPC classification number: H01M4/8663 , H01M4/8621 , H01M4/9033 , H01M8/023 , H01M8/12 , H01M8/1253 , H01M2004/8689 , H01M2008/1293
Abstract: A fuel cell has an anode, a cathode and a solid electrolyte layer. The cathode contains a perovskite oxide as a main component. The perovskite oxide is expressed by a general formula ABO3 and includes at least Sr at the A site. The solid electrolyte layer is disposed between the anode and the cathode. The cathode includes a surface region which is within 5 μm from a surface opposite the solid electrolyte layer. The surface region contains a main phase comprising the perovskite oxide and a secondary phase comprising strontium sulfate. An occupied surface area ratio of the secondary phase in a cross section of the surface region is greater than or equal to 0.25% to less than or equal to 8.5%.
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公开(公告)号:US20230071139A1
公开(公告)日:2023-03-09
申请号:US17887540
申请日:2022-08-15
Applicant: NGK INSULATORS, LTD.
Inventor: Satoru HASHIMOTO , Shingo SOKAWA , Yoshihiko YAMAMURA , Kosuke UJIHARA
IPC: G01N27/407 , G01N33/00 , G01N27/406 , G01N27/41
Abstract: A sensor element includes an element body that contains a measurement-object gas flow section and a heat generation portion. The measurement-object gas flow section includes a main pump chamber, an auxiliary pump chamber, and a measurement chamber. A distance X1 in a left-right direction between a part of a first inner linear portion and a part of a second inner linear portion of the heat generation portion that overlap a main pump chamber projection region is equal to or more than ⅓ of a width Wp of the main pump chamber projection region in the left-right direction. A distance X2 in the left-right direction between a part of the first inner linear portion and a part of the second inner linear portion that overlap an auxiliary pump chamber projection region is equal to or more than 0.4 times the width Wp.
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公开(公告)号:US20180131007A1
公开(公告)日:2018-05-10
申请号:US15862277
申请日:2018-01-04
Applicant: NGK INSULATORS, LTD.
Inventor: Shinji FUJISAKI , Yoshihiko YAMAMURA , Takashi RYU , Makoto OHMORI
IPC: H01M4/90 , H01M8/1253
CPC classification number: H01M4/9033 , C04B35/2608 , C04B35/488 , C04B35/505 , C04B2235/3201 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3225 , C04B2235/3227 , C04B2235/3246 , C04B2235/3275 , C04B2235/3279 , C04B2235/72 , C04B2235/725 , C04B2235/768 , H01M4/8605 , H01M4/8668 , H01M8/1253 , H01M2008/1293 , Y02E60/525 , Y02P70/56
Abstract: The fuel cell according to the present invention has an anode, a cathode and a solid electrolyte layer. The cathode contains a perovskite oxide as a main component. The perovskite oxide is expressed by the general formula ABO3 and including La and Sr at the A site. The solid electrolyte layer is disposed between the anode and the cathode. The cathode has a surface on opposite side to the solid electrolyte layer. A first ratio of a Sr concentration relative to an La concentration is less than or equal to 4 times a second ratio of the Sr concentration relative to the La concentration. The first ratio is detected by use of X-ray photoelectron spectroscopy on the surface of the cathode. The second ratio of a Sr concentration relative to a La concentration is detected by use of X-ray photoelectron spectroscopy on an exposed surface. The exposed surface is exposed by surface processing of the surface. The exposed surface is positioned within 5 nm of the surface in relation to a direction of thickness.
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公开(公告)号:US20170012334A1
公开(公告)日:2017-01-12
申请号:US15275722
申请日:2016-09-26
Applicant: NGK INSULATORS, LTD.
Inventor: Yoshihiko YAMAMURA , Tatsuya HATTORI , Naomi SAITO , Naohito YAMADA
CPC classification number: H01M12/08 , H01M2/1646 , H01M4/8605 , H01M4/8663 , H01M4/8673 , H01M4/9016 , H01M12/06
Abstract: Disclosed is an air electrode for a metal-air battery, the air electrode including a separator composed of a hydroxide-ion-conductive inorganic solid electrolyte being a dense ceramic material, and an air electrode layer disposed on the separator and containing an air electrode catalyst, an electron-conductive material, and a hydroxide-ion-conductive material, or containing an air electrode catalyst also serving as an electron-conductive material and a hydroxide-ion-conductive material. According to the present invention, the reaction resistance of the air electrode including the dense ceramic separator can be significantly reduced in a metal-air battery while ensuring the desired characteristics of the dense ceramic separator.
Abstract translation: 公开了一种用于金属 - 空气电池的空气电极,空气电极包括由致密陶瓷材料的氢氧根离子传导性无机固体电解质组成的隔板和设置在隔板上的空气电极催化剂 ,电子传导材料和氢氧根离子传导材料,或含有也用作电子传导材料的空气电极催化剂和氢氧根离子传导材料。 根据本发明,在确保所述致密陶瓷隔板的所需特性的同时,可以在金属 - 空气电池中显着降低包括致密陶瓷隔板的空气电极的反应电阻。
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公开(公告)号:US20170362717A1
公开(公告)日:2017-12-21
申请号:US15689377
申请日:2017-08-29
Applicant: NGK INSULATORS, LTD.
Inventor: Tatsuya HATTORI , Yoshihiko YAMAMURA , Kenshin KITOH , Naohito YAMADA , Naomi SAITO
CPC classification number: C25B1/06 , C01F17/0012 , C25B11/0463 , H01M4/8652 , H01M4/9008 , H01M4/9016 , H01M4/9033 , H01M12/06 , H01M12/065 , H01M12/08 , Y02E60/128 , Y02E60/366
Abstract: Provided is an air electrode or water electrolysis anode showing a higher catalytic activity than carbon black and not having a risk of oxidative degradation, in particular, an air electrode or water electrolysis anode for a metal-air battery or a water electrolysis apparatus. The air electrode or water electrolysis anode includes an electron-conductive material represented by LaNi1−x−yCuxFeyO3−δ (where x>0, y>0, x+y
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公开(公告)号:US20170104254A1
公开(公告)日:2017-04-13
申请号:US15386184
申请日:2016-12-21
Applicant: NGK INSULATORS, LTD.
Inventor: Tatsuya HATTORI , Yoshihiko YAMAMURA , Naohito YAMADA
IPC: H01M12/08 , H01M8/1246 , H01M8/1018 , H01M2/16
CPC classification number: H01M12/08 , H01M2/168 , H01M4/90 , H01M4/92 , H01M8/1018 , H01M8/1246 , H01M2008/1095 , H01M2008/1293 , H01M2300/0065 , H01M2300/0071 , H01M2300/0082 , H01M2300/0094 , Y02E60/128
Abstract: Provided is a separator-equipped air electrode for a metal-air battery, the separator-equipped air electrode including a separator composed of a hydroxide-ion-conductive inorganic solid electrolyte being a dense ceramic material; an air electrode layer containing an air electrode catalyst and an electron-conductive material, or containing an air electrode catalyst also serving as an electron-conductive material; and an intermediate layer disposed between the separator and the air electrode layer, improving the adhesion between the separator and the air electrode layer, and exhibiting hydroxide ion conductivity. The present invention enables an air electrode provided with a dense ceramic separator to ensure the desired characteristics of the dense ceramic separator and reduces the resistance of a metal-air battery (in particular, the interfacial resistance between the air electrode layer and the separator).
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公开(公告)号:US20170062837A1
公开(公告)日:2017-03-02
申请号:US15350551
申请日:2016-11-14
Applicant: NGK INSULATORS, LTD.
Inventor: Makoto OHMORI , Shinji FUJISAKI , Yoshihiko YAMAMURA , Takashi RYU
IPC: H01M4/90 , H01M8/1246
CPC classification number: H01M4/9033 , C04B35/01 , C04B35/26 , C04B35/2633 , C04B2235/3213 , C04B2235/3227 , C04B2235/3272 , C04B2235/3275 , C04B2235/768 , H01M4/8647 , H01M8/1246 , H01M2004/8689 , H01M2008/1293 , Y02E60/525 , Y02P70/56
Abstract: A fuel cell comprises an anode, a cathode, and a solid electrolyte layer disposed between the anode and the cathode. The cathode includes a perovskite oxide as a main component. The perovskite oxide is expressed by the general formula ABO3 and includes at least one of La and Sr at the A site. The cathode includes a surface region that is within 5 micrometers from the surface opposite the solid electrolyte layer. The surface region contains a main phase configured by the perovskite oxide and a secondary phase that is configured by strontium oxide. The occupied surface area ratio of the secondary phase in a cross section of the surface region is greater than or equal to 0.05% to less than or equal to 3%.
Abstract translation: 燃料电池包括阳极,阴极和设置在阳极和阴极之间的固体电解质层。 阴极包括以钙钛矿氧化物为主要成分。 钙钛矿氧化物由通式ABO 3表示,并且在A位置包括La和Sr中的至少一种。 阴极包括与固体电解质层相对的表面在5微米内的表面区域。 表面区域包含由钙钛矿氧化物构成的主相和由氧化锶构成的次相。 表面区域的横截面中的二次相的占据表面积比率大于或等于0.05%至小于或等于3%。
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