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1. 发明授权

US07879503B2 Fuel cell stack including bypass 有权
标题翻译：燃料电池堆包括旁路
公开(公告)号：US07879503B2
公开(公告)日：2011-02-01
申请号：US11207513
申请日：2005-08-19
申请人： Charles Mackintosh , Seth Valentine , Sitima R. Fowler , Steven L. Piedmont
发明人： Charles Mackintosh , Seth Valentine , Sitima R. Fowler , Steven L. Piedmont
IPC分类号： H01M2/38 , H01M2/40 , H01M8/24 , H01M8/04 , H01M8/06
CPC分类号： H01M8/04492 , H01M8/04186 , H01M8/1007 , H01M8/2415 , H01M8/2484
摘要： A fuel cell stack including a bypass is provided. The fuel cell stack includes a plurality of electricity generating cells in the known manner. A bypass is included for reducing the water entering the electricity generating cells of the fuel cell stack. The bypass may comprise at least one bypass cell disposed adjacent the first electricity generating cell in the stack. The bypass cell comprises a pair of separator plates defining an anode side and a cathode side. The bypass cell includes a conductive spacer comprising gas diffusion media disposed between the pair of separator plates. The bypass cell preferably blocks the cathode port on the separator plate. In this manner, the cell is inactive and does not produce electricity. The anode port of the cell remains open and an anode feed flows through the bypass to reduce water provided to the first electricity-generating cell. Alternatively or additionally, the cathode port remains open. Further the bypass may be placed before the cell stack itself.
摘要翻译：提供了包括旁路的燃料电池堆。燃料电池堆以已知的方式包括多个发电单元。包括旁路以减少进入燃料电池堆的发电单元的水。旁路可以包括与堆叠中的第一发电单元相邻设置的至少一个旁路单元。旁路电池包括限定阳极侧和阴极侧的一对隔板。旁路电池包括导电间隔件，其包括设置在该对隔板之间的气体扩散介质。旁路电池优选地阻挡隔板上的阴极端口。以这种方式，电池是不活动的并且不产生电力。电池的阳极端口保持打开，并且阳极进料流过旁路以减少提供给第一发电池的水。或者或另外，阴极端口保持打开。此外，旁路可以放置在电池堆本身之前。

2. 发明授权

US07560183B2 Control of RH conditions in electrochemical conversion assembly 有权
标题翻译：电化学转换组件中RH条件的控制
公开(公告)号：US07560183B2
公开(公告)日：2009-07-14
申请号：US11035184
申请日：2005-01-13
申请人： Sitima R. Fowler , Bernd Mueller
发明人： Sitima R. Fowler , Bernd Mueller
IPC分类号： H01M8/04
CPC分类号： H01M8/04119 , H01M8/04007 , H01M2008/1095 , H01M2250/20 , Y02T90/32
摘要： A system and method for controlling an electrochemical conversion assembly are provided. The system is configured such that operation of one or both of the second reactant supply and the temperature controller responds to the cathode-side RH signal to a degree sufficient to maintain relative humidity within the second flowfield portion within a suitable humidification range. The suitable humidification range is a function of the degree to which the vapor barrier layers inhibit the migration of water molecules from the membrane electrode assembly.
摘要翻译：提供了一种用于控制电化学转化组件的系统和方法。该系统被配置为使得第二反应物供应和温度控制器中的一个或两个的操作响应阴极侧RH信号到足以将第二流场部分内的相对湿度保持在合适的加湿范围内的程度。合适的加湿范围是蒸气阻隔层抑制水分子从膜电极组件迁移的程度的函数。

3. 发明申请

US20080152957A1 Non-functional fuel cell for fuel cell stack 审中-公开
标题翻译：用于燃料电池堆的非功能燃料电池
公开(公告)号：US20080152957A1
公开(公告)日：2008-06-26
申请号：US11643178
申请日：2006-12-21
申请人： Ronald L. James , Ivan D. Chapman , Steven J. Spencer , Sitima R. Fowler
发明人： Ronald L. James , Ivan D. Chapman , Steven J. Spencer , Sitima R. Fowler
IPC分类号： H01M8/02 , B05D3/00
CPC分类号： H01M8/241 , H01M8/0271 , H01M8/0289 , H01M8/04074 , H01M8/04246 , H01M8/04291 , H01M8/2483 , H01M2008/1095
摘要： A non-functional fuel cell for a fuel cell stack includes a shim disposed between gas diffusion media, a bipolar plate at one end, and either a bipolar plate or a unipolar plate at the other end. The shim of the non-functional cell replaces the membrane electrode assembly (MEA) in a normal fuel cell located in the middle or the end of the fuel cell stack. The shim is coated with electrically conductive, corrosion-resistant protective coating. The shim may be cleaned prior to applying the protective coating to remove an oxide layer from the surface of the shim. The non-functional fuel cell may be included in the initial design of the fuel cell stack, or may be used to replace one or more damaged or inoperative fuel cells to increase the overall performance of the fuel cell stack.
摘要翻译：用于燃料电池堆的非功能燃料电池包括设置在气体扩散介质，一端的双极板和另一端的双极板或单极板之间的垫片。非功能单元的垫片代替位于燃料电池堆的中间或末端的正常燃料电池中的膜电极组件（MEA）。垫片涂有导电，耐腐蚀的保护涂层。在施加保护涂层以从垫片的表面去除氧化物层之前可以清洁垫片。非功能燃料电池可以包括在燃料电池堆的初始设计中，或者可以用于替换一个或多个损坏或不能操作的燃料电池，以增加燃料电池堆的整体性能。

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