公开(公告)号：US20150044595A1

公开(公告)日：2015-02-12

申请号：US14385574

申请日：2013-03-19

Applicant: SHOWA DENKO K.K.

Inventor： Ryuji Monden ,  Takuya Imai ,  Yuji Ito ,  Kunchan Lee ,  Takashi Sato

IPC: H01M4/90 ,  H01M4/86 ,  H01M8/10

CPC classification number: H01M4/9016 ,  H01M4/8605 ,  H01M4/9041 ,  H01M8/1004 ,  H01M8/1018 ,  H01M2008/1095

Abstract: An object of the present invention is to suppress flooding phenomenon in an electrode catalyst for fuel cells containing a metal atom, a carbon atom, a nitrogen atom and an oxygen atom. A production process of an electrode catalyst for fuel cells is provided which includes a fluorination step of bringing a catalyst body into contact with fluorine, the catalyst body having an atom of at least one metal element selected from the group consisting of zinc, titanium, niobium, zirconium, aluminum, chromium, manganese, iron, cobalt, nickel, copper, strontium, yttrium, tin, tungsten, cerium, samarium and lanthanum, a carbon atom, a nitrogen atom and an oxygen atom.

Abstract translation: 本发明的目的是为了抑制含有金属原子，碳原子，氮原子和氧原子的燃料电池的电极催化剂中的溢流现象。 提供了一种用于燃料电池的电极催化剂的生产方法，其包括使催化剂体与氟接触的氟化步骤，所述催化剂体具有选自锌，钛，铌中的至少一种金属元素的原子 锆，铝，铬，锰，铁，钴，镍，铜，锶，钇，锡，钨，铈，钐和镧，碳原子，氮原子和氧原子。

公开(公告)号：US09640801B2

公开(公告)日：2017-05-02

申请号：US15064510

申请日：2016-03-08

Applicant: SHOWA DENKO K.K.

Inventor： Masaki Horikita ,  Kunchan Lee ,  Ryuji Monden ,  Chunfu Yu ,  Yasuaki Wakizaka ,  Takashi Sato ,  Yoshinori Abe

IPC: H01M4/88 ,  H01M4/90 ,  H01M4/92 ,  H01M8/1011

CPC classification number: H01M4/8817 ,  H01M4/8803 ,  H01M4/8882 ,  H01M4/8885 ,  H01M4/9008 ,  H01M4/9041 ,  H01M4/9075 ,  H01M4/921 ,  H01M4/925 ,  H01M8/1011 ,  Y02E60/50 ,  Y02E60/523 ,  Y02P70/56

Abstract: A catalyst carrier production process includes a step (a) of mixing a transition metal compound (1), a nitrogen-containing organic compound (2), and a solvent to provide a catalyst carrier precursor solution; a step (b) of removing the solvent from the catalyst carrier precursor solution; and a step (c) of thermally treating a solid residue obtained in the step (b) at a temperature of 500 to 1100° C. to provide a catalyst carrier; wherein the transition metal compound (1) is partly or wholly a compound including a transition metal element (M1) selected from the group 4 and 5 elements of the periodic table as a transition metal element; and at least one of the transition metal compound (1) and the nitrogen-containing organic compound (2) includes an oxygen atom.

公开(公告)号：US09318749B2

公开(公告)日：2016-04-19

申请号：US13946531

申请日：2013-07-19

Applicant: SHOWA DENKO K.K.

Inventor： Masaki Horikita ,  Kunchan Lee ,  Ryuji Monden ,  Chunfu Yu ,  Yasuaki Wakizaka ,  Takashi Sato ,  Yoshinori Abe

IPC: H01M4/90 ,  H01M4/92 ,  H01M4/88 ,  H01M8/10

CPC classification number: H01M4/8817 ,  H01M4/8803 ,  H01M4/8882 ,  H01M4/8885 ,  H01M4/9008 ,  H01M4/9041 ,  H01M4/9075 ,  H01M4/921 ,  H01M4/925 ,  H01M8/1011 ,  Y02E60/50 ,  Y02E60/523 ,  Y02P70/56

Abstract: A catalyst carrier production process includes a step (a) of mixing a transition metal compound (1), a nitrogen-containing organic compound (2), and a solvent to provide a catalyst carrier precursor solution; a step (b) of removing the solvent from the catalyst carrier precursor solution; and a step (c) of the thermally treating a solid residue obtained in the step (b) at a temperature of 500 to 1100° C. to provide a catalyst carrier; wherein the transition metal compound (1) is partly or wholly a compound including a transition metal element (M1) selected from the group 4 and 5 elements of the periodic table as a transition metal element; and at least one of the transition metal compound (1) and the nitrogen-containing organic compound (2) includes an oxygen atom.

Abstract translation: 催化剂载体的制造方法包括将过渡金属化合物（1），含氮有机化合物（2）和溶剂混合的步骤（a），以提供催化剂载体前体溶液; 从催化剂载体前体溶液中除去溶剂的步骤（b）; 和步骤（c），在500〜1100℃的温度下热处理步骤（b）中得到的固体残渣，得到催化剂载体; 其中过渡金属化合物（1）部分或全部是包含选自元素周期表第4族和第5族元素的过渡金属元素（M1）作为过渡金属元素的化合物; 并且过渡金属化合物（1）和含氮有机化合物（2）中的至少一种包含氧原子。

公开(公告)号：US10205174B2

公开(公告)日：2019-02-12

申请号：US15106545

申请日：2014-08-26

Applicant: SHOWA DENKO K.K.

Inventor： Tatsuya Fukuta ,  Takashi Sato ,  Masayuki Yoshimura ,  Yuji Ito

IPC: H01M4/88 ,  H01M4/90 ,  B01D53/86 ,  B01J35/02 ,  H01M8/1004 ,  B01J23/00 ,  H01M4/04 ,  H01M4/48 ,  H01M8/08 ,  B44C3/02 ,  H01M4/08 ,  B44C1/175

Abstract: An electrode catalyst ink composition which includes metal oxide-based electrode catalyst particles, an electrolyte, and a mixed liquid medium, wherein the mixed liquid medium contains 40 to 85% by mass of water; 5 to 30% by mass of an aqueous solvent (A) that has an evaporation rate of 2.0 or lower when the evaporation rate of water at 25° C. is 1, and a solubility parameter (SP value) of not less than 9; and 10 to 30% by mass of a monoalcohol (B) that has an evaporation rate of higher than 2.0 when the evaporation rate of water at 25° C. is 1, and not more than 3 carbon atoms, provided that the total amount of the mixed liquid medium is 100% by mass.

公开(公告)号：US20150155569A1

公开(公告)日：2015-06-04

申请号：US14413441

申请日：2013-04-02

Applicant: SHOWA DENKO K.K.

Inventor： Noriyasu Tezuka ,  Masaki Horikita ,  Takuya Imai ,  Masayuki Yoshimura ,  Yuji Ito ,  Takashi Sato

IPC: H01M4/90

CPC classification number: H01M4/9016 ,  H01M4/8652 ,  H01M4/8663 ,  H01M4/8673 ,  H01M4/90 ,  H01M4/9041 ,  H01M4/9083 ,  H01M4/921 ,  H01M4/925 ,  H01M8/04126 ,  H01M8/04835 ,  H01M2004/8684 ,  H01M2004/8689 ,  H01M2008/1095 ,  H01M2300/0082

Abstract: Provided is a method for operating a fuel cell involving supplying an electrode with a low or non-humidified gas that achieves no significant decrease of voltage as compared with when a high-humidified feed gas is used. The method for operating a fuel cell having a membrane electrode assembly includes a cathode, an anode and an electrolyte membrane interposed between both the electrodes, wherein the cathode has a layer including an oxygen reducing catalyst including composite particles which include atoms of a metal element M1, carbon, nitrogen and oxygen and in which primary particles of a compound of the metal element M1 are dispersed in a carbon structure, which method includes supplying the cathode with an oxidizing agent gas which includes an oxygen gas and which has a relative humidity at a temperature of the membrane electrode assembly of 60% or less, and supplying the anode with a fuel gas.

Abstract translation: 提供了一种用于操作燃料电池的方法，该燃料电池涉及向使用低湿或非加湿气体的电极提供电压，与使用高湿化进料气体相比，不能显着降低电压。 用于操作具有膜电极组件的燃料电池的方法包括阴极，阳极和插入在两个电极之间的电解质膜，其中阴极具有包括氧还原催化剂的层，所述氧还原催化剂包括包含金属元素M1的原子的复合颗粒 碳，氮和氧，其中金属元素M1的化合物的一次粒子分散在碳结构中，该方法包括向阴极供给包含氧气的氧化剂气体，并且其相对湿度为 膜电极组件的温度为60％以下，向阳极供给燃料气体。

公开(公告)号：US20150093681A1

公开(公告)日：2015-04-02

申请号：US14390520

申请日：2013-03-27

Applicant: SHOWA DENKO K.K.

Inventor： Ryuji Monden ,  Takuya Imai ,  Yuji Ito ,  Kunchan Lee ,  Takashi Sato

IPC: H01M4/90 ,  H01M4/88

CPC classification number: H01M4/9016 ,  H01M4/88 ,  H01M4/9008 ,  H01M2008/1095 ,  H01M2300/0082

Abstract: An object of the present invention is to provide a fuel cell electrode catalyst with which high durability and a high maximum output density are obtained even when a fuel cell is continuously operated for long time; a method for producing the fuel cell electrode catalyst; a fuel cell in which the catalyst is used; and the like. A method for producing a fuel cell electrode catalyst is provided, the method including: a step of preparing a catalyst precursor comprising each atom of a metal element, carbon, nitrogen, and oxygen, and comprising copper as the metal element; and a contact step of bringing the catalyst precursor and an acid solution into contact with each other to obtain a catalyst.

Abstract translation: 本发明的目的在于提供即使燃料电池长时间连续运转也能获得高耐久性和高最大输出密度的燃料电池用电极催化剂， 燃料电池用电极催化剂的制造方法， 使用催化剂的燃料电池; 等等。 提供一种制造燃料电池用电极催化剂的方法，该方法包括：制备包含金属元素，碳，氮和氧的每个原子，并且包含铜作为金属元素的催化剂前体的步骤; 以及使催化剂前体和酸性溶液相互接触以获得催化剂的接触步骤。