公开(公告)号：US11450862B2

公开(公告)日：2022-09-20

申请号：US15815875

申请日：2017-11-17

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Wataru Otsu ,  Naohiro Hoshikawa ,  Masayuki Ito ,  Takahiro Kato

IPC分类号： H01M8/026 ,  H01M8/0254 ,  H01M8/0206 ,  H01M8/1004

摘要： A separator for a fuel cell, includes a separator plate provided with a flow path groove group through which the reaction gas flows. The flow path groove group includes a single first flow path groove, a plurality of second flow path grooves, and a branch portion that connects an end portion of the first flow path groove to end portions of the second flow path grooves. The branch portion includes a narrow portion having a narrower groove width than a groove width of a remaining portion of the branch portion. A groove depth of the narrow portion is shallower than a groove depth of the remaining portion of the branch portion.

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.

公开(公告)号：US20180166702A1

公开(公告)日：2018-06-14

申请号：US15815875

申请日：2017-11-17

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Wataru OTSU ,  Naohiro Hoshikawa ,  Masayuki Ito ,  Takahiro Kato

IPC分类号： H01M8/026 ,  H01M8/1004

CPC分类号： H01M8/026 ,  H01M8/0206 ,  H01M8/0254 ,  H01M8/1004 ,  H01M2250/20 ,  Y02P70/56

摘要： A separator for a fuel cell, includes a separator plate provided with a flow path groove group through which the reaction gas flows. The flow path groove group includes a single first flow path groove, a plurality of second flow path grooves, and a branch portion that connects an end portion of the first flow path groove to end portions of the second flow path grooves. The branch portion includes a narrow portion having a narrower groove width than a groove width of a remaining portion of the branch portion. A groove depth of the narrow portion is shallower than a groove depth of the remaining portion of the branch portion.