[특허]Electrochemical fuel cell stack with concurrently flowing coolant and oxidant streams

[미국특허] Electrochemical fuel cell stack with concurrently flowing coolant and oxidant streams 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01M-008/04
출원번호	US-0265414 (1994-06-24)
발명자 / 주소	Fletcher Nicholas J. (Vancouver CAX) Chow Clarence Y. (Vancouver CAX) Pow Eric G. (Vancouver CAX) Wozniczka Boguslav M. (Coquitlam CAX) Voss Henry H. (West Vancouver CAX) Hornburg Gerald (Elchingen D
출원인 / 주소	Ballard Power Systems Inc. (North Vancouver CAX 03) Daimler-Benz AG (Stuttgart DEX 03)
인용정보	피인용 횟수 : 56 인용 특허 : 0

초록 ▼

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).

대표청구항 ▼

An electrochemical fuel cell stack comprising at least one fuel cell assembly, said assembly comprising: A. at least one fuel cell comprising: 1. an anode layer comprising at least one fuel stream inlet and means for flowing within said anode layer a fuel stream introduced at said at least one fuel stream inlet, said fuel stream comprising hydrogen; 2. a cathode layer comprising at least one oxidant stream inlet, at least one oxidant stream outlet, and means for flowing an oxidant stream from said at least one oxidant stream inlet to said at least one oxidant stream outlet, said oxidant stream comprising oxygen and water formed by the electrochemical reaction of said hydrogen and said oxygen; 3. an electrolyte interposed between said anode layer and said cathode layer; and B. a cooling layer disposed adjacent said cathode layer, said cooling layer comprising at least one coolant stream inlet, at least one coolant stream outlet, and means for flowing a coolant stream from said at least one coolant stream inlet to said at least one coolant stream outlet, said flowing means maintaining said coolant stream within a single flow field plate; wherein said flowing means directs said coolant stream such that the coolest region of said cooling layer substantially coincides with the region of said cathode layer in which the oxidant stream has the lowest water content, and the warmest region of said cooling layer substantially coincides with the region of said cathode layer in which the oxidant stream has the highest water content.

이 특허를 인용한 특허 (56) 인용/피인용 타임라인 분석

Clawson,Lawrence G.; Dorson,Matthew H.; Mitchell,William L.; Nowicki,Brian J.; Bentley,Jeffrey M.; Davis,Robert; Rumsey,Jennifer W., Auxiliary reactor for a hydrocarbon reforming system.
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Kralick James H., Cooling a fuel cell stack.
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Wilkinson David P.,CAX ; Voss Henry H.,CAX ; Fletcher Nicholas J.,CAX ; Johnson Mark C. ; Pow Eric G.,CAX, Electrochemical fuel cell stack with concurrent flow of coolant and oxidant streams and countercurrent flow of fuel and.
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Appleby, A. John; Gamburzev, Serguey, Electronically conducting fuel cell component with directly bonded layers and method for making the same.
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Carlstrom ; Jr. Charles M., End plate assembly having a two-phase fluid-filled bladder and method for compressing a fuel cell stack.
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Thompson,Eric L.; Goebel,Steven G.; Ofslager,Scott, Enhanced flowfield plates.
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King, George R., Enhancement of proton exchange membrane fuel cell system by use of radial placement and integrated structural support system.
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Sugita Narutoshi,JPX ; Okazaki Koji,JPX ; Yamagami Takeshi,JPX ; Komura Takashi,JPX, Fastening structure for fuel cell stack.
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Yang, Deliang; King, Constance J., Fluid flow control for cool, efficient fuel cell operation.
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Mohri, Masahiro; Nagoshi, Kentaro; Oda, Masaru, Fuel cell.
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Sugita Narutoshi,JPX ; Okazaki Koji,JPX, Fuel cell.
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Katagiri, Toshikatsu; Nuiya, Yoshio, Fuel cell and method of operating same.
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McElroy James F., Fuel cell cascade flow system.
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Nelson Milton H., Fuel cell channeled distribution of hydration water.
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Okazaki, Koji; Wariishi, Yoshinori, Fuel cell stack.
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Fujii, Yosuke; Suzuki, Masaharu, Fuel cell stack having bent section flow passage grooves.
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Kikuchi, Hideaki; Oda, Masaru; Otani, Teruyuki; Kawagoe, Norimasa, Fuel cell stack having coolant passage whose lower area has larger flow resistance.
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Wariishi, Yoshinori; Suzuki, Masaharu, Fuel cell stack with a curved flow guide section.
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White Eric T. ; Nestler ; Jr. Edward W. ; Karuppaiah Chock, Fuel cell system.
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Oko Uriel M. ; Kralick James H., Fuel cell system having humidification membranes.
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Gurin, Victor; Novak, Peter, Fuel cell with integrated feedback control.
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Appleby, A. John; Gamburzev, Serguey, Fuel cell with monolithic flow field-bipolar plate assembly and method for making and cooling a fuel cell stack.
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Schank, William; Milacic, Milos, Gas conditioning device and method.
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Collins William P. ; Van Dine Leslie L., Humidification system for a fuel cell power plant.
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Voss, Mark G.; Siler, Nicholas; Mross, Gregory A.; Stevenson, Joseph R.; Meissner, Alan P., Integrated condenser/separator for fuel cell exhaust gases.
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Clawson, Lawrence G.; Dorson, Matthew H.; Mitchell, William L.; Nowicki, Brian J.; Thijssen, Johannes; Davis, Robert; Papile, Christopher; Rumsey, Jennifer W.; Longo, Nathan; Cross, III, James C.; Ri, Integrated hydrocarbon reforming system and controls.
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Chow Clarence Y.,CAX ; Wozniczka Boguslaw,CAX ; Chan John Ka Ki,CAX, Integrated reactant and coolant fluid flow field layer for an electrochemical fuel cell.
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Bentley,Jeffrey M.; Clawson,Lawrence G.; Mitchell,William L.; Dorson,Matthew H., Integrated reformer and shift reactor.
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Sinha, Manish; Fagley, John C.; Willimowski, Peter; Goebel, Steven G., Management via dynamic water holdup estimator in a fuel cell.
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King, George R., Mass transport for ternary reaction optimization in a proton exchange membrane fuel cell assembly and stack assembly.
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Goebel, Steven G., Nested bipolar plate for fuel cell and method.
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Goebel, Steven G., Nested bipolar plate for fuel cell and method.
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Edwards, Leroy M; Hochgraf, Clark G, Passive hydrogen vent for a fuel cell.
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Breault,Richard D., Passive water management system for a fuel cell power plant.
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Blomgren, Ralf, Plate heat exchanger plate and a plate heat exchanger.
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King, George R., Polarized gas separator and liquid coalescer for fuel cell stack assemblies.
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Colborn, Jeffrey A., Power system including heat removal unit for providing backup power to one or more loads.
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Pollica,Darryl; Northrop,William F.; Qi,Chunming (Frank C.); Hagan,Mark R.; Smith,Alexis; Clawson,Lawrence, Preferential oxidation reactor temperature regulation.
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Spink, Scott A.; Lott, David R.; Wright, Matthew M.; Yemul, Dinesh S.; Fuglevand, William A.; Bayuuk, Shiblihanna I.; Duan, Runrun; Bai, Lijun, Proton exchange membrane fuel cell.
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Fuglevand, William A.; Bayyuk, Shibli Hanna I.; Wright, Matthew M., Proton exchange membrane fuel cell and method of forming a fuel cell.
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Spink, Scott A.; Lott, David R.; Wright, Matthew M.; Ryan, Eric J.; Yemul, Dinesh S.; Fisher, John M., Proton exchange membrane fuel cell stack and fuel cell stack module.
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Spink, Scott A.; Lott, David R.; Wright, Matthew M.; Ryan, Eric J.; Yemul, Dinesh S.; Fisher, John M., Proton exchange membrane fuel cell stack and fuel cell stack module.
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Spink, Scott A.; Lott, David R.; Wright, Matthew M.; Ryan, Eric J.; Yemul, Dinesh S.; Fisher, John M., Proton exchange membrane fuel cell stack and fuel cell stack module.
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Goebel, Steven G.; Pettit, William H.; Fagley, John C.; Whitehead, Lee C., Relative humidity control for a fuel cell.
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Goebel, Steven G.; Pettit, William H.; Fagley, John C.; Whitehead, Lee C., Relative humidity control for a fuel cell.
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Fagley, John C.; Sinha, Manish, Relative humidity profile control strategy for high current density stack operation.
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Henry H. Voss CA; Russell H. Barton CA; Brian W. Wells CA; Joel A. Ronne CA; Harald Anton Nigsch DE, Solid polymer fuel cell system and method for humidifying and adjusting the temperature of a reactant stream.
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Voss Henry H.,CAX ; Barton Russell H.,CAX ; Wells Brian W.,CAX ; Ronne Joel A.,CAX ; Nigsch Harald Anton,DEX, Solid polymer fuel cell system and method for humidifying and adjusting the temperature of a reactant stream.
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Voss, Henry H.; Barton, Russell H.; Wells, Brian W.; Ronne, Joel A.; Nigsch, Harald Anton, Solid polymer fuel cell system and method for humidifying and adjusting the temperature of a reactant stream.
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Rock, Jeffrey A., Stamped bipolar plate for PEM fuel cell stack.
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Rock, Jeffrey A., Stamped bipolar plate for PEM fuel cell stack.
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Blondin Melanie A ; Guthrie Robin J. ; Sawyer Richard D. ; Yang Deliang ; Fredley Robert R., System for preventing gas pocket formation in a PEM coolant flow field.
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[미국특허] Electrochemical fuel cell stack with concurrently flowing coolant and oxidant streams 원문보기

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[미국특허] Electrochemical fuel cell stack with concurrently flowing coolant and oxidant streams 원문보기

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