公开(公告)号：US11349134B2

公开(公告)日：2022-05-31

申请号：US17042210

申请日：2019-03-26

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takehiro Mugishima ,  Hitoshi Nagasaki ,  Akio Fujimoto

IPC: H01M8/0263 ,  H01M4/86 ,  H01M8/04119 ,  H01M8/1004

Abstract: According to the present invention, electrolyte membrane electrode structures have a staggered arrangement wherein a part of an anode electrode faces a part of one of two adjacent cathode electrodes, with an electrolyte membrane being interposed therebetween, and another part of the anode electrode faces a part of the other cathode electrode, with an interconnect part being interposed therebetween, said interconnect part being formed in the electrolyte membrane. A fuel cell according to the present invention is additionally provided with a fuel gas supply layer that is provided with a fuel gas supply path in which a fuel gas to be supplied to the anode electrode flows. A wall part between fuel gas supply paths in the fuel gas supply layer is superposed on the interconnect part, with the anode electrode being interposed therebetween.

公开(公告)号：US11168445B2

公开(公告)日：2021-11-09

申请号：US16323900

申请日：2017-08-08

Applicant: HONDA MOTOR CO., LTD.

Inventor： Tomoko Tamai ,  Yuichi Hori ,  Kazuhide Matsuo ,  Satoshi Aoki ,  Satoshi Yonezawa ,  Hidetoshi Utsumi ,  Yasuro Katsuyama ,  Takehiro Mugishima

IPC: D21H13/50 ,  D21H17/48 ,  D21H17/52 ,  H05B3/34 ,  D01F9/12 ,  C01B32/05 ,  D01F9/14

Abstract: A method for manufacturing a carbon fiber sheet, the method including a carbon fiber forming step of heating a resin sheet to a carbonization temperature at a heating rate of 15,000° C./sec or higher, thereby forming a carbon fiber from the resin sheet. In the carbon fiber forming step, the resin sheet is preferably irradiated with an energy ray having an output density of 130 W/mm2 or higher and an amount of irradiation energy of 0.05 J/mm2 or more.

公开(公告)号：US11245120B2

公开(公告)日：2022-02-08

申请号：US16473846

申请日：2017-12-26

Applicant: HONDA MOTOR CO. LTD.

Inventor： Hitoshi Nagasaki ,  Takehiro Mugishima ,  Kazuhide Matsuo

IPC: H01M8/0213

Abstract: A fuel cell manufacturing method capable of easily forming an interconnector part electrically connecting adjacent unit cells in a planar array fuel cell is provided. The interconnector part (30) is formed through a local heating process of carbonizing a proton conductive resin by locally heating an electrolyte membrane (12). The local heating process includes: a first heating step of heating a part of the electrolyte membrane (12) to a temperature equal to or less than a first temperature at a first temperature increase rate or less; and a second heating step of heating the part of the electrolyte membrane (12) to a temperature equal to or greater than a second temperature higher than the first temperature at a temperature increase rate greater than the first temperature increase rate, after the first heating step.

公开(公告)号：US11217807B2

公开(公告)日：2022-01-04

申请号：US17042228

申请日：2019-03-26

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takehiro Mugishima ,  Hitoshi Nagasaki ,  Akio Fujimoto ,  Ayumi Mizuno

IPC: H01M8/1006 ,  H01M8/2465

Abstract: Electrolyte membrane electrode structures that constitute a fuel cell according to the present invention have a staggered arrangement wherein a part of an anode electrode faces a part of one of two adjacent cathode electrodes, with an electrolyte membrane being interposed therebetween, and another part of the anode electrode faces a part of the other cathode electrode, with an interconnect part being interposed therebetween, said interconnect part being formed in the electrolyte membrane. The electrolyte membrane electrode structures are sealed in a laminate layer which is obtained by bonding an anode-side porous film that covers the anode electrode and a cathode-side porous film that covers the cathode electrodes with each other.

公开(公告)号：US20190341628A1

公开(公告)日：2019-11-07

申请号：US16473846

申请日：2017-12-26

Applicant: HONDA MOTOR CO. LTD.

Inventor： Hitoshi Nagasaki ,  Takehiro Mugishima ,  Kazuhide Matsuo

IPC: H01M8/0213

Abstract: A fuel cell manufacturing method capable of easily forming an interconnector part electrically connecting adjacent unit cells in a planar array fuel cell is provided. The interconnector part (30) is formed through a local heating process of carbonizing a proton conductive resin by locally heating an electrolyte membrane (12). The local heating process includes: a first heating step of heating a part of the electrolyte membrane (12) to a temperature equal to or less than a first temperature at a first temperature increase rate or less; and a second heating step of heating the part of the electrolyte membrane (12) to a temperature equal to or greater than a second temperature higher than the first temperature at a temperature increase rate greater than the first temperature increase rate, after the first heating step.

公开(公告)号：US11271223B2

公开(公告)日：2022-03-08

申请号：US17042211

申请日：2019-03-26

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takehiro Mugishima ,  Hitoshi Nagasaki ,  Akio Fujimoto

IPC: H01M8/0263 ,  H01M8/2418 ,  H01M8/1004

Abstract: This fuel cell is provided with a first electrolyte membrane electrode structure and a second electrolyte membrane electrode structure, respective cathode electrodes of which face each other with an oxidant gas supply layer being interposed therebetween. The oxidant gas supply layer has: a first projection part which presses an interconnect part of an electrolyte membrane that constitutes the first electrolyte membrane electrode structure; and a second projection part which presses an interconnect part of an electrolyte membrane that constitutes the second electrolyte membrane electrode structure.

公开(公告)号：US20210020961A1

公开(公告)日：2021-01-21

申请号：US17042211

申请日：2019-03-26

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takehiro Mugishima ,  Hitoshi Nagasaki ,  Akio Fujimoto

IPC: H01M8/0263 ,  H01M8/2418 ,  H01M8/1004

Abstract: This fuel cell is provided with a first electrolyte membrane electrode structure and a second electrolyte membrane electrode structure, respective cathode electrodes of which face each other with an oxidant gas supply layer being interposed therebetween. The oxidant gas supply layer has: a first projection part which presses an interconnect part of an electrolyte membrane that constitutes the first electrolyte membrane electrode structure; and a second projection part which presses an interconnect part of an electrolyte membrane that constitutes the second electrolyte membrane electrode structure.

公开(公告)号：US20190177918A1

公开(公告)日：2019-06-13

申请号：US16323900

申请日：2017-08-08

Applicant: HONDA MOTOR CO., LTD.

Inventor： Tomoko Tamai ,  Yuichi Hori ,  Kazuhide Matsuo ,  Satoshi Aoki ,  Satoshi Yonezawa ,  Hidetoshi Utsumi ,  Yasuro Katsuyama ,  Takehiro Mugishima

IPC: D21H13/50 ,  H05B3/34

Abstract: A method for manufacturing a carbon fiber sheet, the method including a carbon fiber forming step of heating a resin sheet to a carbonization temperature at a heating rate of 15,000° C./sec or higher, thereby forming a carbon fiber from the resin sheet. In the carbon fiber forming step, the resin sheet is preferably irradiated with an energy ray having an output density of 130 W/mm2 or higher and an amount of irradiation energy of 0.05 J/mm2 or more.

公开(公告)号：US11728499B2

公开(公告)日：2023-08-15

申请号：US17042229

申请日：2019-03-26

Applicant: HONDA MOTOR CO., LTD.

Inventor： Daigo Mukasa ,  Hitoshi Nagasaki ,  Takehiro Mugishima ,  Akio Fujimoto ,  Ayumi Mizuno

IPC: H01M8/1004 ,  H01M4/86 ,  H01M8/0258 ,  H01M8/04082 ,  H01M8/04089 ,  H01M8/04746

CPC classification number: H01M8/1004 ,  H01M4/8605 ,  H01M8/0258 ,  H01M8/04089 ,  H01M8/04201 ,  H01M8/04753

Abstract: In this fuel cell, a cathode-side porous film that covers a cathode electrode is interposed between the cathode electrode and an air supply layer, the cathode electrode constituting electrolyte film/electrode structures. In addition, breathing holes are formed in the cathode-side porous film, and the air flowing through air supply passages passes through the breathing holes and is supplied to the cathode electrode.

公开(公告)号：US10305118B2

公开(公告)日：2019-05-28

申请号：US14224806

申请日：2014-03-25

Applicant: HONDA MOTOR CO., LTD.

Inventor： Satoru Terada ,  Yuki Hama ,  Masahiro Matsutani ,  Akihito Giga ,  Takehiro Mugishima ,  Mayu Kurata

IPC: H01M8/02 ,  H01M8/0206 ,  H01M8/0215 ,  H01M8/0228 ,  H01M8/0267 ,  H01M8/0271 ,  H01M8/0284

Abstract: First, a passive film is removed from a surface of a separator sheet. For example, the separator sheet may be immersed in an acidic liquid to remove the passive film. Then, the separator sheet is washed with water, taken out from the water, and heated. After the heating, the separator sheet is subjected to an electrolytic treatment to obtain a separator for a fuel cell. The resultant separator has a seal forming portion, and the outermost surface of the seal forming portion contains, based on 100% by weight of the total of a Cr oxide, an Mo oxide, an Fe oxide, Fe, and Ni, 5% by weight or less of the sum of the Fe and Ni and 60% by weight or more of the Cr oxide.