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1. 发明授权

US10164281B2 Fuel-cell unit cell 有权
公开(公告)号：US10164281B2
公开(公告)日：2018-12-25
申请号：US15608962
申请日：2017-05-30
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Daisuke Hayashi , Atsushi Ida , Kazunori Shibata , Nobuaki Nonoyama , Shuji Kurita
IPC分类号： H01M8/1004 , H01M8/0247 , H01M8/026 , H01M8/0254
摘要： A fuel-cell unit cell comprises: a membrane electrode and gas diffusion layer assembly; a cathode-side separator made of a press-molded plate, the cathode-side separator forming a plurality of cathode gas flow paths and non-flow-path portions therebetween on a cathode-side surface of the membrane electrode and gas diffusion layer assembly; and an anode-side separator made of a press-molded plate, the anode-side separator forming a plurality of anode gas flow paths and non-flow-path portions therebetween on an anode-side surface of the membrane electrode and gas diffusion layer assembly. At least one gas flow path among the plural cathode gas flow paths and the plural anode gas flow paths includes a constricting portion that is configured to reduce a flow-path height in a stacking direction of the fuel-cell unit cells as well as to reduce a flow path cross-sectional area of the gas flow path. When projected and observed along the stacking direction, the plural cathode gas flow paths and the plural anode gas flow paths are configured to have mutually different two-dimensional shapes, there exist intersect positions at which the cathode gas flow paths and the anode gas flow path intersect each other, and the constricting portion is provided at a position other than the intersect positions.

2. 发明申请

US20190237775A1 METHOD OF MANUFACTURING FUEL CELL SEPARATOR 审中-公开
公开(公告)号：US20190237775A1
公开(公告)日：2019-08-01
申请号：US16233340
申请日：2018-12-27
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Kazunori Shibata
IPC分类号： H01M8/0254
CPC分类号： H01M8/0254
摘要： A method of manufacturing a fuel cell separator, includes: stacking a first separator plate and a second separator plate having first and second protruding portions so that the first and second protruding portions protrude in a direction away from the first separator plate, the first and second protruding portions being adjacent to both sides of a first junction portion to be joined to the first separator plate; pressing the first and second protruding portions toward the first separator plate so that the first junction portion is pressed against the first separator plate; and joining the first junction portion to the first separator plate while the first junction portion is being pressed against the first separator plate, wherein in the pressing, the first junction portion is pressed against the first separator plate by elastic deformation of a first bent portion bent between the first junction portion and the first protruding portion.

3. 发明授权

US11251454B2 Fuel cell 有权
公开(公告)号：US11251454B2
公开(公告)日：2022-02-15
申请号：US16849051
申请日：2020-04-15
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Takashi Kajiwara , Kazunori Shibata , Sachio Okada
IPC分类号： H01M8/1004 , H01M4/88 , H01M8/026 , H01M8/0273
摘要： A fuel cell includes: a membrane electrode gas diffusion layer assembly in which a membrane electrode assembly is sandwiched by a pair of gas diffusion layers; an insulating member formed into a frame shape, and being in contact with an outer peripheral portion of the membrane electrode gas diffusion layer assembly; and first and second separators sandwiching the membrane electrode gas diffusion layer assembly and the insulating member.

4. 发明授权

US10511036B2 Fuel cell module with arranged ridge segments 有权
公开(公告)号：US10511036B2
公开(公告)日：2019-12-17
申请号：US15592579
申请日：2017-05-11
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , TOYOTA SHATAI KABUSHIKI KAISHA
发明人： Hiroya Nakaji , Kazunori Shibata , Hiroki Okabe , Kousuke Kawajiri , Satoshi Futami , Keiji Hashimoto , Takamasa Kanie
IPC分类号： H01M8/04119 , H01M8/04291 , H01M8/1004 , H01M8/04089
摘要： A channel forming body used in a fuel cell module has a gas channel, a water conduit, and a communication path that provides communication between the gas channel and the water conduit. When a ridge is seen in a cross-section perpendicular to a channel extension direction, one of both ends of an external shape of the ridge is shaped so as to be located closer to a center of the ridge than an imaginary surface of the channel assumed to extend in a straight line along the channel extension direction. Portions of the ridge located closer to the center of the ridge are formed opposite from each other at left and right ends of the external shape of the ridge with the communication path interposed therebetween.

5. 发明授权

US09966614B2 Fuel cell 有权
公开(公告)号：US09966614B2
公开(公告)日：2018-05-08
申请号：US14689671
申请日：2015-04-17
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Kazunori Shibata , Yasushi Araki , Takashi Kajiwara , Masayuki Ito
IPC分类号： H01M8/02 , H01M8/0273 , H01M8/0276 , H01M8/241 , H01M8/2457 , H01M8/2483 , H01M8/028
CPC分类号： H01M8/0273 , H01M8/0276 , H01M8/028 , H01M8/241 , H01M8/2457 , H01M8/2483
摘要： A fuel cell includes a membrane electrode assembly; a frame configured to support the membrane electrode assembly from its outer edge; a first separator plate and a second separator plate configured to sandwich the membrane electrode assembly and the frame therebetween; and an elastomer. The first separator plate includes an elastically deformable protruding portion projecting toward an opposite side to the frame. The frame has a recessed cavity portion facing the protruding portion of the first separator plate. The elastomer is placed in at least part of the cavity portion.

6. 发明授权

US11462748B2 Method of manufacturing fuel cell separator 有权
公开(公告)号：US11462748B2
公开(公告)日：2022-10-04
申请号：US16233340
申请日：2018-12-27
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Kazunori Shibata
IPC分类号： H01M8/0254 , H01M8/0267 , H01M8/0206
摘要： A method of manufacturing a fuel cell separator, includes: stacking a first separator plate and a second separator plate having first and second protruding portions so that the first and second protruding portions protrude in a direction away from the first separator plate, the first and second protruding portions being adjacent to both sides of a first junction portion to be joined to the first separator plate; pressing the first and second protruding portions toward the first separator plate so that the first junction portion is pressed against the first separator plate; and joining the first junction portion to the first separator plate while the first junction portion is being pressed against the first separator plate, wherein in the pressing, the first junction portion is pressed against the first separator plate by elastic deformation of a first bent portion bent between the first junction portion and the first protruding portion.

7. 发明授权

US11018363B2 Fuel cell including frame member 有权
公开(公告)号：US11018363B2
公开(公告)日：2021-05-25
申请号：US16154277
申请日：2018-10-08
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Kazunori Shibata
IPC分类号： H01M8/1004 , H01M8/0284 , C09J7/24 , B32B27/08 , B32B37/12 , C08J5/22 , H01M4/86 , H01M8/0247 , H01M8/0273 , H01M8/242
摘要： A fuel cell includes: a membrane-electrode-gas diffusion layer assembly; a separator positioned in one side with respect to the membrane-electrode-gas diffusion layer assembly; a frame member supporting the membrane-electrode-gas diffusion layer assembly and joined to the separator, wherein the frame member includes: a base layer; an adhesive layer having thermoplasticity, having a linear expansion coefficient greater than that of the base layer, and joining the base layer and the separator; and a coating, layer provided on a side, opposite to the adhesive layer, of the base layer, having a liner expansion coefficient greater than that of the base layer, and not containing an adhesive component.

8. 发明授权

US10957917B2 Manufacturing method of unit cell of fuel cell 有权
公开(公告)号：US10957917B2
公开(公告)日：2021-03-23
申请号：US16154298
申请日：2018-10-08
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Kazunori Shibata
IPC分类号： H01M8/0273 , H01M8/0202 , H01M8/0289 , H01M8/10 , H01M8/241 , H01M8/0276 , H01M8/0284 , H01M8/0297 , H01M8/0286 , H01M8/1004 , H01M8/1018
摘要： A manufacturing method of a unit cell of a fuel cell, includes: preparing a frame member made of resin, first adhesive bonds being provided on one surface of the frame member and being separated from each other and each having thermoplasticity; preparing a separator; and joining the frame member and the separator by heating and pressing the frame member and the separator in a state where the one surface of the frame member faces the separator through the first adhesive bonds, so as to melt the first adhesive bonds to be brought into contact with each other.

9. 发明授权

US10541440B2 Fuel cell stack 有权
公开(公告)号：US10541440B2
公开(公告)日：2020-01-21
申请号：US15898338
申请日：2018-02-16
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Kazunori Shibata , Takashi Kajiwara , Kohsei Yoshida , Atsushi Ida , Joji Tomiyasu , Koji Fukunaga , Naohiro Hoshikawa
IPC分类号： H01M2/38 , H01M8/2485 , H01M8/0258
摘要： A fuel cell stack includes a plurality of single cells stacked and a manifold. The plurality of single cells each include a first separator including a seal portion surrounding the manifold and including a hollow protrusion and a fluid passage portion allowing the fluid to flow between the manifold and a space on the opposite side of the seal portion from the manifold via the hollow of the seal portion, a second separator disposed on the side opposite to the side on which the seal portion projects, of the first separator, and an electric insulating frame disposed on the opposite side of the second separator from the first separator. The second separator includes a flat-and-bulge portion in a surface facing the seal portion, along an abutment region of the seal portion and the electric insulating frame.

10. 发明授权

US10181607B2 Gas flow passage-forming member and cell for fuel cell 有权
公开(公告)号：US10181607B2
公开(公告)日：2019-01-15
申请号：US15660085
申请日：2017-07-26
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , TOYOTA SHATAI KABUSHIKI KAISHA
发明人： Kazunori Shibata , Hiroya Nakaji , Hiroki Okabe , Yoshinori Shinozaki , Kousuke Kawajiri , Satoshi Futami , Takamasa Kanie
IPC分类号： H01M8/0254 , H01M8/04119 , H01M8/0202 , H01M8/026 , H01M8/1004 , H01M8/0258 , H01M8/0206 , H01M8/1018
摘要： A gas flow passage-forming member is disposed between a membrane electrode and gas diffusion layer assembly and a separator of a fuel cell, and the gas flow passage-forming member is configured to form a gas flow passage. The gas flow passage-forming member has a corrugated shape such that groove portions and ridge portions are provided on each of a front side and a back side of the gas flow passage-forming member. The groove portions each serve as the gas flow passage. The gas flow passage-forming member has communication holes providing communication between the front side and the back side, and the communication holes are provided in a region downstream of an upstream region in a gas flow direction. The upstream region is a non-communication region with no communication hole.

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