公开(公告)号：US11349131B2

公开(公告)日：2022-05-31

申请号：US17082896

申请日：2020-10-28

Applicant: TOPPAN PRINTING CO., LTD. ,  HIROSAKI UNIVERSITY

Inventor： Hiroyuki Morioka ,  Madoka Ozawa ,  Mitsuharu Chisaka

IPC: H01M4/90 ,  H01M4/86 ,  H01M4/92 ,  H01M8/1004 ,  H01M8/10

Abstract: Provided is a catalyst for fuel cells including an oxygen atom, a nitrogen atom, a pentavalent phosphorus atom, and a transition metal atom, in which when the transition metal atom is represented by M, the catalyst for fuel cells is represented by a chemical formula MOxNyPz, and the transition metal atom is at least one selected from the group consisting of a titanium atom, a tantalum atom, a niobium atom, and a zirconium atom.

公开(公告)号：US11811070B2

公开(公告)日：2023-11-07

申请号：US17225361

申请日：2021-04-08

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Hiroyuki Morioka

IPC: H01M4/86 ,  H01M4/92 ,  H01M8/04119 ,  H01M8/1004 ,  H01M8/10

CPC classification number: H01M4/8657 ,  H01M4/926 ,  H01M8/04149 ,  H01M8/1004 ,  H01M2008/1095

Abstract: A fuel cell membrane electrode assembly and a polymer electrolyte fuel cell, which improve drainage in a high current range where a large amount of water is produced, without hindering water retention under low humidification conditions, and exhibit high power generation performance and durability even under high humidification conditions. A fuel cell membrane electrode assembly according to a first embodiment of the present invention includes a polyelectrolyte film, and two electrocatalyst layers sandwiching the polyelectrolyte film. At least one of the two electrocatalyst layers includes catalyst support particles with a hydrophobic coating, a polyelectrolyte, and a fibrous material having an average fiber diameter that is 10 nm or more and 300 nm or less. The fibrous material has a mass that is 0.2 times or more and 1.0 times or less the mass of the carrier in the catalyst support particles.

公开(公告)号：US11749809B2

公开(公告)日：2023-09-05

申请号：US17225361

申请日：2021-04-08

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Hiroyuki Morioka

IPC: H01M4/86 ,  H01M4/92 ,  H01M8/04119 ,  H01M8/1004 ,  H01M8/10

CPC classification number: H01M4/8657 ,  H01M4/926 ,  H01M8/04149 ,  H01M8/1004 ,  H01M2008/1095

Abstract: A fuel cell membrane electrode assembly and a polymer electrolyte fuel cell, which improve drainage in a high current range where a large amount of water is produced, without hindering water retention under low humidification conditions, and exhibit high power generation performance and durability even under high humidification conditions. A fuel cell membrane electrode assembly according to a first embodiment of the present invention includes a polyelectrolyte film, and two electrocatalyst layers sandwiching the polyelectrolyte film. At least one of the two electrocatalyst layers includes catalyst support particles with a hydrophobic coating, a polyelectrolyte, and a fibrous material having an average fiber diameter that is 10 nm or more and 300 nm or less. The fibrous material has a mass that is 0.2 times or more and 1.0 times or less the mass of the carrier in the catalyst support particles.

公开(公告)号：US11817607B2

公开(公告)日：2023-11-14

申请号：US17491888

申请日：2021-10-01

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Hiroyuki Morioka

IPC: H01M8/1048 ,  H01M4/86 ,  H01M8/04119 ,  H01M8/1004 ,  H01M8/10 ,  H01M4/92 ,  H01M8/1018 ,  H01M4/90

CPC classification number: H01M8/1048 ,  H01M4/8657 ,  H01M8/04149 ,  H01M8/04164 ,  H01M8/1004 ,  H01M4/8652 ,  H01M4/8663 ,  H01M4/9083 ,  H01M4/926 ,  H01M8/1018 ,  H01M2008/1095

Abstract: A membrane electrode assembly and a polymer electrolyte fuel cell that are capable of improving water release in a high current region, where a large amount of water is generated, without impairing water retention under low humidity conditions, and also capable of exhibiting high power generation performance and durability under high humidity conditions, and also reducing the production cost of the electrode catalyst layer. A membrane electrode assembly of the present embodiment includes a polymer electrolyte membrane, and a pair of electrode catalyst layers sandwiching the polymer electrolyte membrane. At least one of the pair of electrode catalyst layers contains catalyst-supporting particles having a hydrophobic coating, hydrophobic polymer fibers, and a polymer electrolyte.

公开(公告)号：US20130216700A1

公开(公告)日：2013-08-22

申请号：US13850897

申请日：2013-03-26

Applicant: Toppan Printing Co., Ltd.

Inventor： Hiroyuki Morioka ,  Haruna Kurata ,  Saori Okada ,  Kenichiro Oota

IPC: H01M4/88

CPC classification number: H01M4/8828 ,  H01M4/8605 ,  H01M4/9016 ,  H01M4/9083 ,  H01M2008/1095

Abstract: The invention includes a manufacturing method of an electrode catalyst layer which contains a polymer electrolyte, a catalyst and carbon particles and achieves a high power generation performance even when an oxide of non-platinum is used as the catalyst. The method has a feature of including either a process of preliminarily embedding the catalyst in the polymer electrolyte or a process of preliminarily embedding the carbon particles in the polymer electrolyte.

Abstract translation: 本发明包括含有聚合物电解质，催化剂和碳颗粒的电极催化剂层的制造方法，即使使用非铂的氧化物作为催化剂也能实现高发电性能。 该方法的特征在于，包括将催化剂预先包埋在聚合物电解质中的工序或预先将碳粒子嵌入聚合物电解质中的工序。