公开(公告)号：EP0783771B1

公开(公告)日：1998-07-22

申请号：EP95931110.1

申请日：1995-09-20

申请人： BALLARD POWER SYSTEMS INC.

发明人： GIBB, Peter ,  VOSS, Henry, H. ,  SCHLOSSER, Wolfgang ,  POW, Eric, G. ,  LINES, Donald A. ,  FLETCHER, Nicholas J.

IPC分类号： H01M8/24

CPC分类号： H01M8/248 ,  H01M8/241 ,  H01M8/247 ,  H01M8/2483 ,  H01M8/2484 ,  H01M2300/0082

摘要： An electrochemical fuel cell stack has a first end plate, a second end plate, and fuel cell assemblies interposed therebetween. Each fuel cell assembly includes a membrane electrode assembly having at least one manifold header opening formed in the assembly for directing at least one of a fluid fuel stream, a fluid oxidant stream and a fluid coolant stream through the assembly. A tie rod extends within the opening and through each of the first and second end plates. Fastening means are disposed at opposite ends of the tie rod. Compressive means are interposed between at least one of the fastening means and at least one of the first and second end plates. In operation, the fastening means and the compressive means urge the first end plate toward the second end plate, thereby applying compressive force to the fuel cell assemblies.

公开(公告)号：EP0774170B1

公开(公告)日：2000-01-05

申请号：EP95922380.1

申请日：1995-06-23

申请人： BALLARD POWER SYSTEMS INC.

发明人： FLETCHER, Nicholas, J. ,  CHOW, Clarence, Y. ,  POW, Eric, G. ,  WOZNICZKA, Boguslav, M. ,  VOSS, Henry, H. ,  HORNBURG, Gerald ,  Wilkinson, David P.

IPC分类号： H01M8/04 ,  H01M8/10

CPC分类号： F28F3/083 ,  H01M8/026 ,  H01M8/0263 ,  H01M8/0267 ,  H01M8/0273 ,  H01M8/04007 ,  H01M8/04074 ,  H01M8/04097 ,  H01M8/04156 ,  H01M8/04291 ,  H01M8/1007 ,  H01M8/241 ,  H01M8/242 ,  H01M8/2465 ,  H01M8/2483 ,  H01M2300/0082

摘要： A fuel cell assembly within an electrochemical fuel cell stack has a cooling jacket disposed adjacent the cathode layer. The cooling layer comprises a coolant stream inlet, a coolant stream outlet, and at least one channel for directing a coolant stream from the coolant stream inlet to the coolant stream outlet. The coolant stream channels extend such that the coolest region of the cooling layer substantially coincides with the region of the adjacent cathode layer having the highest concentration of oxygen (and also the lowest water content), and the warmest region of the cooling layer substantially coincides with the region of the adjacent cathode layer having the lowest concentration of oxygen (and also the highest water content).

公开(公告)号：EP1299917A2

公开(公告)日：2003-04-09

申请号：EP01929157.4

申请日：2001-05-07

申请人： BALLARD POWER SYSTEMS INC.

发明人： LINES, Donald, A. ,  FLETCHER, Nicholas, J. ,  POW, Eric, G. ,  SEXSMITH, Michael ,  GRAY, William ,  THUMM, Horst

IPC分类号： H01M8/00

CPC分类号： B29C43/3607 ,  B29C43/003 ,  B29C43/36 ,  B29C43/56 ,  B29C2043/025 ,  B29C2043/566 ,  H01M8/0206 ,  H01M8/0213 ,  H01M8/0228 ,  Y10T29/10 ,  Y10T156/1023 ,  Y10T156/1039 ,  Y10T156/1056

摘要： An improved embossing expanded graphite sheet material comprises removing at least a portion of the gas from within the material by exposing the material to a pressure less than atmospheric pressure, and then embossing the material. Preferably, the pressure to which the material is exposed is less than or equal to about 400 torr. An improved apparatus for embossing expanded graphite sheet material (102) at a pressure less than atmospheric pressure comprises: at least one embossing device; at least one compression device (112) adapted to urge the embossing device (104) against the material; an embossing chamber (110) comprising the at least one embossing device and adapted to receive the material, and to be substantially gas-tight at least when the embossing device is urged against the material by the pressing device; and an evacuation device for reducing the pressure within the embossing chamber. The atmosphere within the embossing chamber may comprise an inert gas, such as, for example, nitrogen, helium and argon.

公开(公告)号：EP0774170A1

公开(公告)日：1997-05-21

申请号：EP95922380.0

申请日：1995-06-23

申请人： BALLARD POWER SYSTEMS INC. ,  DAIMLER-BENZ AKTIENGESELLSCHAFT

发明人： FLETCHER, Nicholas, J. ,  CHOW, Clarence, Y. ,  POW, Eric, G. ,  WOZNICZKA, Boguslav, M. ,  VOSS, Henry, H. ,  HORNBURG, Gerald ,  Wilkinson, David P.

IPC分类号： F28F3 ,  H01M8

CPC分类号： F28F3/083 ,  H01M8/026 ,  H01M8/0263 ,  H01M8/0267 ,  H01M8/0273 ,  H01M8/04007 ,  H01M8/04074 ,  H01M8/04097 ,  H01M8/04156 ,  H01M8/04291 ,  H01M8/1007 ,  H01M8/241 ,  H01M8/242 ,  H01M8/2465 ,  H01M8/2483 ,  H01M2300/0082

摘要： A fuel cell assembly within an electrochemical fuel cell stack has a cooling jacket disposed adjacent the cathode layer. The cooling layer comprises a coolant stream inlet, a coolant stream outlet, and at least one channel for directing a coolant stream from the coolant stream inlet to the coolant stream outlet. The coolant stream channels extend such that the coolest region of the cooling layer substantially coincides with the region of the adjacent cathode layer having the highest concentration of oxygen (and also the lowest water content), and the warmest region of the cooling layer substantially coincides with the region of the adjacent cathode layer having the lowest concentration of oxygen (and also the highest water content).

公开(公告)号：EP1299917B1

公开(公告)日：2007-02-21

申请号：EP01929157.4

申请日：2001-05-07

申请人： Ballard Power Systems Inc.

发明人： LINES, Donald, A. ,  FLETCHER, Nicholas, J. ,  POW, Eric, G. ,  SEXSMITH, Michael ,  GRAY, William ,  THUMM, Horst

IPC分类号： H01M8/00

CPC分类号： B29C43/3607 ,  B29C43/003 ,  B29C43/36 ,  B29C43/56 ,  B29C2043/025 ,  B29C2043/566 ,  H01M8/0206 ,  H01M8/0213 ,  H01M8/0228 ,  Y10T29/10 ,  Y10T156/1023 ,  Y10T156/1039 ,  Y10T156/1056

摘要： An improved embossing expanded graphite sheet material comprises removing at least a portion of the gas from within the material by exposing the material to a pressure less than atmospheric pressure, and then embossing the material. Preferably, the pressure to which the material is exposed is less than or equal to about 400 torr. An improved apparatus for embossing expanded graphite sheet material (102) at a pressure less than atmospheric pressure comprises: at least one embossing device; at least one compression device (112) adapted to urge the embossing device (104) against the material; an embossing chamber (110) comprising the at least one embossing device and adapted to receive the material, and to be substantially gas-tight at least when the embossing device is urged against the material by the pressing device; and an evacuation device for reducing the pressure within the embossing chamber. The atmosphere within the embossing chamber may comprise an inert gas, such as, for example, nitrogen, helium and argon.

公开(公告)号：EP0783771A1

公开(公告)日：1997-07-16

申请号：EP95931110.0

申请日：1995-09-20

申请人： BALLARD POWER SYSTEMS INC.

发明人： GIBB, Peter ,  VOSS, Henry, H. ,  SCHLOSSER, Wolfgang ,  POW, Eric, G. ,  Lines, Donald A. ,  Fletcher, Nicholas J.

IPC分类号： H01M8

CPC分类号： H01M8/248 ,  H01M8/241 ,  H01M8/247 ,  H01M8/2483 ,  H01M8/2484 ,  H01M2300/0082

摘要： An electrochemical fuel cell stack has a first end plate, a second end plate, and fuel cell assemblies interposed therebetween. Each fuel cell assembly includes a membrane electrode assembly having at least one manifold header opening formed in the assembly for directing at least one of a fluid fuel stream, a fluid oxidant stream and a fluid coolant stream through the assembly. A tie rod extends within the opening and through each of the first and second end plates. Fastening means are disposed at opposite ends of the tie rod. Compressive means are interposed between at least one of the fastening means and at least one of the first and second end plates. In operation, the fastening means and the compressive means urge the first end plate toward the second end plate, thereby applying compressive force to the fuel cell assemblies.

公开(公告)号：EP0584107B1

公开(公告)日：1995-07-26

申请号：EP92909262.5

申请日：1992-05-11

申请人： BALLARD POWER SYSTEMS INC.

发明人： WATKINS, David, S. ,  POW, Eric, G. ,  LINES, Donald, A.

IPC分类号： C01B3/38 ,  B01J8/02

CPC分类号： H01M8/0631 ,  B01J8/0285 ,  B01J12/007 ,  B01J19/0093 ,  B01J2219/0002 ,  B01J2219/00783 ,  B01J2219/00835 ,  B01J2219/00873 ,  B01J2219/00889 ,  B01J2219/00891 ,  C01B3/323 ,  F28D9/00 ,  F28F2260/00

摘要： A compact modular isothermal reactor (40) for converting a feedstock such as methanol into a fuel usable in power generation systems, such as electrochemical fuel cells, is provided. The reactor includes a sealing plate (48), a baffle plate (45) having heat transfer surfaces (47) extending toward the sealing plate (48), and a housing (46) having an interior substantially circumscribing the heat transfer surfaces (47). The cooperating surfaces of the sealing plate (48), baffle plate (45), heat transfer surfaces (47) and housing interior define a tortuous or labyrinthine channel for containing a suitable quantity of solid catalyst (62) and through which feedstock flows. The cooperating surfaces of a fluid flow plate (44) and the baffle plate (45) define a flow passage (50) for carrying a thermal fluid. Heat is transferred from the thermal fluid to the feedstock by the heat transfer surfaces (47). In two alternative designs, thermally conductive pins (78, 81) extending from the fluid flow plates (76, 83) or a pair of spaced folded thermally conductive plates (107) transfer heat to the interior of a catalyst containment vessel (106). In an optional heat exchange section (11), the feedstock is preheated before being directed to the reactor.