公开(公告)号：US07041407B2

公开(公告)日：2006-05-09

申请号：US10437034

申请日：2003-05-14

申请人： Jefferson Y S Yang ,  Te-Chou Yang ,  Mike Pen-Mu Kao ,  Yao-Sheng Hsu ,  Yaw-Chung Cheng

发明人： Jefferson Y S Yang ,  Te-Chou Yang ,  Mike Pen-Mu Kao ,  Yao-Sheng Hsu ,  Yaw-Chung Cheng

IPC分类号： H01M8/02

CPC分类号： H01M8/026 ,  H01M8/0247 ,  H01M8/0258 ,  H01M8/0263 ,  H01M8/0267 ,  H01M8/04074 ,  H01M8/241 ,  H01M8/2457 ,  H01M8/2483 ,  H01M8/2484

摘要： A fuel cell stack includes a number of modularized plate structures including an anode plate, a cathode plate, water coolant plates and air coolant plates. The anode and cathode plates are designed to form hydrogen and air channels that allow for uniform distribution and even flow of hydrogen and air through the channels with the channels of each particular plate having substantially identical length in order to enhance electrochemical reaction between hydrogen and oxygen contained in the air with respective catalysts in the fuel cell stack. Also a sufficient amount of air is allowed to flow through the cathode plate to enhance output power of the fuel cell stack. The coolant plates adapt a split design, which introduces turbulence in the coolant channels to enhance heat removal.

公开(公告)号：US20070224474A1

公开(公告)日：2007-09-27

申请号：US11653211

申请日：2007-01-16

申请人： Jefferson YS Yang ,  Yao-Sheng Hsu ,  Mike Pen-Mu Kao ,  Feng-Hsiang Hsiao

发明人： Jefferson YS Yang ,  Yao-Sheng Hsu ,  Mike Pen-Mu Kao ,  Feng-Hsiang Hsiao

IPC分类号： H01M8/04

CPC分类号： H01M8/0265 ,  H01M8/04179 ,  H01M8/241 ,  H01M8/2483 ,  H01M2008/1095

摘要： Disclosed is a gas-inlet pressure adjustment structure for a flow field plate of a fuel cell stack. At least one gas inlet opening, at least one gas outlet opening, and a plurality of channels are defined in a central zone of the flow field plate. A membrane electrode assembly is stacked over the central zone. The channels are of a parallel arrangement and each having a reduced open end and an expanded open end, the reduced open end having a cross-sectional area smaller than that of the expanded open end. The reduced open end communicates the gas inlet opening through which a reaction gas is supplied to the flow field plate. Water generated by chemical reaction occurring inside the flow field plate and attached to a surface of the gas channel by surface tension is expelled out of the channel by a force caused by a pressure difference induced in the reaction gas, which is supplied through the gas inlet opening and flows in sequence through the reduced open end, the channel, and the expanded open end and eventually discharges through the gas outlet opening.

摘要翻译： 公开了一种用于燃料电池堆的流场板的气体入口压力调节结构。 在流场板的中心区域中限定至少一个气体入口，至少一个气体出口开口和多个通道。 膜电极组件堆叠在中心区域上。 通道是平行布置的，并且每个通道具有减小的开口端和扩展的开口端，所述缩小的开口端的横截面面积小于扩展的开口端的横截面面积。 减小的开口端将通过其供应反应气体的气体入口开口连通到流场板。 通过在流场板内发生并通过表面张力附着在气体通道的表面上的化学反应产生的水通过由反应气体中引起的压力差引起的力而从通道中排出，反应气体通过气体入口 通过减小的开口端，通道和扩展的开口端依次开启和流动，并最终通过气体出口开口排出。