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公开(公告)号：US10547064B2
公开(公告)日：2020-01-28
申请号：US15285795
申请日：2016-10-05
发明人： Siguang Xu , Xi Yang , Ivan D. Chapman , Liang Xi
IPC分类号： H01M8/026 , H01M8/0267 , H01M8/1039 , H01M8/1007 , H01M8/1004 , H01M8/1018
摘要： A fuel cell flow field plate providing a uniform gas flow pressure includes a first metal plate and a second metal plate. The first metal plate defines a first opening for providing a first reactant gas to a fuel cell with a first metal bead that surrounds the first opening. The first metal bead is an embossment that defines a first channel. A first plurality of tunnels provides a passage into and out of the first metal bead. Each tunnel of the first plurality of tunnels has an inlet tunnel section that leads to the first metal bead and an outlet tunnel section that extends from the first metal bead to provide the first reactant gas to first reactant gas flow channels defined by the first metal plate. Characteristically, the inlet tunnel section and the outlet tunnel section each having a curved cross section with an opened base side.
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公开(公告)号：US10468707B2
公开(公告)日：2019-11-05
申请号：US15586522
申请日：2017-05-04
发明人： Xi Yang , Liang Xi , Jeffrey A Rock , Siguang Xu , Yeh-Hung Lai
IPC分类号： H01M8/2475 , H01M8/242 , H01M8/1018
摘要： A fuel cell stack assembly for a vehicle is provided which includes a first end plate, a second end plate; and a first plurality of fuel cells disposed between the first and second end plates. The first plurality of fuel cells may define a repeating pattern of a thick fuel cell adjacent to a thin fuel cell. Each fuel cell in the first plurality of fuel cells having an active area thickness. The fuel cell stack assembly of the present disclosure may further include a second plurality of nominal fuel cells.
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公开(公告)号：US10369613B2
公开(公告)日：2019-08-06
申请号：US15425370
申请日：2017-02-06
发明人： Siguang Xu , Charles Prabhakaran
摘要： A die assembly for use in a stamping press is provided. The die assembly includes a first die plate, a first curved die stiffener, and a first die shoe. The first die plate may be configured to form at least a portion of material into a desired configuration. The first curved die stiffener may be affixed to the first die plate on a first curved side of the first curved die stiffener. The first die shoe may be affixed to a second side of the first curved die stiffener. The first die shoe may be operatively configured to be mounted on a first press base.
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公开(公告)号：US10211473B2
公开(公告)日：2019-02-19
申请号：US15356937
申请日：2016-11-21
发明人： Xi Yang , Ivan D. Chapman , Siguang Xu , Liang Xi
IPC分类号： H01M8/04082 , H01M4/86 , H01M8/04029 , H01M8/04089 , H01M8/1004 , H01M8/1018 , H01M8/0206 , H01M8/0267
摘要： A fuel cell flow field plate providing a uniform gas flow pressure includes a first metal plate and a second metal plate. The first metal plate defines a first opening for providing a first reactant gas to a fuel cell with a first metal bead that surrounds the first opening. The first metal bead is an embossment in the second metal plate that defines a first channel. The first metal plate also defines a first pressure distributing structure that decreases pressure variation is a seal formed with the first metal bead. A second metal plate aligns with the first metal plate.
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公开(公告)号：US10153499B2
公开(公告)日：2018-12-11
申请号：US14861239
申请日：2015-09-22
发明人： Siguang Xu , Ivan D. Chapman
IPC分类号： H01M8/0276 , H01M8/0282 , H01M8/0286 , H01M8/026 , H01M8/2465 , H01M8/0267 , H01M8/1018
摘要： A bipolar plate assembly and fuel cell stack with reduced leakage and a method of assembling a bipolar plate and fuel cell stack. The bipolar plates include—in addition to reactant channels and coolant channels that are fluidly coupled to inlet and outlet flowpaths, integrally-formed seals to help reduce leakage by maintaining fluid isolation of the reactants and coolant as they flow through their respective channels and flowpaths. The size and shape of the seals promotes secure plate-to-plate contact, even during plate side-to-side misalignment that can occur when arranging the various plates into the stack.
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公开(公告)号：US20180221934A1
公开(公告)日：2018-08-09
申请号：US15425370
申请日：2017-02-06
发明人： Siguang Xu , Charles Prabhakaran
CPC分类号： B21D37/10 , B21D5/02 , B21D5/0272 , B21D13/02 , B21D22/02 , B21D37/01 , B30B15/007
摘要： A die assembly for use in a stamping press is provided. The die assembly includes a first die plate, a first curved die stiffener, and a first die shoe. The first die plate may be configured to form at least a portion of material into a desired configuration. The first curved die stiffener may be affixed to the first die plate on a first curved side of the first curved die stiffener. The first die shoe may be affixed to a second side of the first curved die stiffener. The first die shoe may be operatively configured to be mounted on a first press base.
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公开(公告)号：US20180131016A1
公开(公告)日：2018-05-10
申请号：US15344655
申请日：2016-11-07
发明人： Xi Yang , Siguang Xu , Liang Xi
IPC分类号： H01M8/0258 , H01M8/0282
CPC分类号： H01M8/0258 , H01M8/0282 , H01M8/0297 , H01M8/2483 , H01M2008/1095
摘要： A fuel cell includes a first bipolar plate, a second bipolar plate and a gas diffusion layer. The first bipolar plate defines a first metal bead seal and a first plate embossment in fluid communication with the first metal bead seal. The second bipolar plate defines a second metal bead seal and a second plate embossment in fluid communication with the second metal bead seal. The first plate embossment and the second plate embossment are offset from one another along the length of the first and second metal bead seals. The second metal bead seal is operatively configured to abut the first metal bead seal to form a joint between the first and second bipolar plate. The gas diffusion layer may be disposed between the first bipolar plate and the second bipolar plate.
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公开(公告)号：US10522852B2
公开(公告)日：2019-12-31
申请号：US15425069
申请日：2017-02-06
发明人： Xi Yang , Siguang Xu , Liang Xi , Richard D. Blakeley , Masaaki Sakano , Yu Tomana , Kentaro Ishida
IPC分类号： H01M8/02 , H01M8/0276 , C25B9/00
摘要： A plate assembly includes a first plate having a planar portion and a first bead seal formed therein. The first bead seal includes a first end surface spaced away from the planar portion. The first bead seal includes first and second opposing sides extending away from the first end surface and contiguous with the planar portion. The first bead seal includes a first reinforcement structure having a first plurality of walls each intersecting the first opposing side of the first bead seal. The first plate includes a second bead seal formed therein. The first bead seal and the second bead seal may be joined via the first reinforcement structure such that the first plurality of walls of the first reinforcement structure each intersect a third opposing side of the second bead seal.
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公开(公告)号：US10388969B2
公开(公告)日：2019-08-20
申请号：US15298273
申请日：2016-10-20
发明人： Richard D. Blakeley , Xi Yang , Siguang Xu , Liang Xi
IPC分类号： H01M8/0297 , H01M8/0206 , H01M8/0267
摘要： A bipolar plate for a fuel cell includes a first plate having a first bead seal, and a second plate having a second bead seal. The first bead seal and the second bead seal are disposed opposite each other and extend along a centerline. An outer weld connects the first plate and the second plate together, and extends along an outer weld line. The outer weld line is laterally spaced an outer gap distance from an outer lateral edge of the first and second bead seals. The outer gap distance varies with a position along the centerline to control a stiffness of the bead seals. Positioning the weld line nearer the outer lateral edge increases the stiffness of the raised bead seals in low stiffness areas, whereas positioning the weld line farther from the lateral edge decreases the stiffness of the raised bead seals in high stiffness areas.
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公开(公告)号：US10355289B2
公开(公告)日：2019-07-16
申请号：US15425074
申请日：2017-02-06
发明人： Xi Yang , Richard D. Blakeley , Liang Xi , Siguang Xu
IPC分类号： H01M8/0271 , H01M8/0286 , H01M8/0276 , H01M8/1018
摘要： A plate structure includes a plate having a planar portion defining a datum plane. The plate includes a raised bead seal and a tunnel protruding away from the datum plane. The raised bead seal extends along a centerline laying on the datum plane. The tunnel extends along a path laying on the datum plane. The tunnel intersects the raised bead seal. The path and the centerline intersect to form a first intersection angle and an adjacent second intersection angle on the datum plane. The first intersection angle and the second intersection angle are supplementary angles. The first intersection angle is an acute angle, and the second intersection angle is an obtuse angle. The path and the centerline are arranged to form a specific value of the first intersection angle and the second intersection angle to control a stiffness of the raised bead seal.
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