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公开(公告)号：US07842425B2
公开(公告)日：2010-11-30
申请号：US10968287
申请日：2004-10-20
CPC分类号： H01M8/0228 , H01M8/0206 , H01M8/0247 , H01M8/0258 , H01M8/0267 , H01M8/241 , H01M2008/1095
摘要： A fuel cell arrangement including a plurality of fuel cells, each fuel cell including an electrolyte membrane disposed between an anode and a cathode, first and second flow field plates adjacent the anode and cathode, respectively; a fuel cell health management (FCHM) device; a plurality of plate members interposed between each of the fuel cells and being made of an electrically conductive metallic material and disposed between the first and second flow field plates of adjacent fuel cells to connect the fuel cells in series, and having an electrically conductive tab. The tab of each of the plate members being electrically connected to the FCHM to conduct current provided by the FCHM to provide a substantially uniform voltage over each electrically of the plate members to rejuvenate each fuel cell, to monitor each fuel cell, and to control each fuel cell, and having a heat sink for dissipating heat.
摘要翻译： 一种燃料电池装置，包括多个燃料电池，每个燃料电池包括设置在阳极和阴极之间的电解质膜，分别与阳极和阴极相邻的第一和第二流场板; 燃料电池健康管理（FCHM）装置; 多个板构件插入在每个燃料电池之间并且由导电金属材料制成并且设置在相邻燃料电池的第一和第二流场板之间，以将燃料电池串联连接并具有导电突片。 每个板构件的突片电连接到FCHM以传导由FCHM提供的电流，以在每个电板上构件上提供基本均匀的电压，以使每个燃料电池恢复活力，以监测每个燃料电池，并且控制每个 燃料电池，并具有用于散热的散热器。
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公开(公告)号：US20050106443A1
公开(公告)日：2005-05-19
申请号：US10968287
申请日：2004-10-20
申请人： William Adams , Christopher Gardner , James Blair
发明人： William Adams , Christopher Gardner , James Blair
CPC分类号： H01M8/0228 , H01M8/0206 , H01M8/0247 , H01M8/0258 , H01M8/0267 , H01M8/241 , H01M2008/1095
摘要： A plate, an electrical interconnect formed by the plate, and a fuel cell assembly incorporating the electrical interconnect. The electrical interconnect is for use in a fuel cell stack. The fuel cell assembly is for use in the electrochemically active section of a fuel cell stack. The assembly includes one or more membrane electrode assemblies (MEA), each disposed between two flow field plates that distribute fuel and oxidant to the anode and the cathode, an additional flow field plate for passing coolant in order to cool the assembly and, possibly, a buss plate. At least one of the buss plates is an electrical interconnect of the present invention. The electrical interconnect is constructed to include one or more electrically conductive tabs, where one or more of the tabs are in turn coupled to a fuel cell health management (FCHM) device that is able to monitor, control, rejuvenate, supplement, and bypass the fuel cell assembly through the connection made via the tabs. The tabs may also be utilized as mounts and heat sinks for high power electronic components associated with the FCHM, the heat generated by these FCHM components being dissipated by the fuel cell stack cooling system. The plate members are made from a highly electrically conductive material such that the voltage drop across each plate member provided by an FCHM is small thus allowing the current density across the MEA to be essentially uniform since the voltage throughout the area of the plate is more uniform that in the usual plate design. The material of the plate member is advantageously selected based on its electrical and thermal conductivities and its chemical stability in the operating environment of the fuel cell.
摘要翻译： 板，由板形成的电互连以及结合电互连的燃料电池组件。 电互连用于燃料电池堆。 燃料电池组件用于燃料电池堆的电化学活性部分。 该组件包括一个或多个膜电极组件（MEA），每个膜电极组件（MEA）分别设置在将燃料和氧化剂分配到阳极和阴极的两个流场板之间，用于通过冷却剂以便冷却组件的附加流场板， 一个公共汽车板。 总线板中的至少一个是本发明的电互连。 电互连被构造成包括一个或多个导电突片，其中一个或多个突片依次耦合到燃料电池健康管理（FCHM）装置，燃料电池健康管理（FCHM）装置能够监视，控制，振兴，补充和绕过 燃料电池组件通过通过接头制成的连接。 这些接头还可以用作与FCHM相关联的大功率电子部件的安装座和散热器，这些FCHM部件产生的热量被燃料电池堆冷却系统消散。 板构件由高度导电的材料制成，使得由FCHM提供的每个板构件上的电压降很小，从而允许跨越MEA的电流密度基本上均匀，因为板的整个区域中的电压更均匀 在通常的平板设计。 板件的材料有利地基于其在燃料电池的操作环境中的电和热导率及其化学稳定性来选择。
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公开(公告)号：US07038424B2
公开(公告)日：2006-05-02
申请号：US10439170
申请日：2003-05-16
IPC分类号： H01M10/46
CPC分类号： H01M8/04559 , H01M8/04238 , H01M8/04589 , H01M8/04619 , H01M8/04951
摘要： Methods and devices for rejuvenating, supplementing, or bypassing an individual fuel cell or a group of fuel cells, in a fuel cell stack, is disclosed. The methods and devices provide for a mechanism for removing catalyst poisons on both the anode portion and the cathode portion of the fuel cell and providing an improvement in the operation of the electrolytes. A controller that controls a variable resistor or a variable power supply in parallel with an individual fuel cell or a group of fuel cells in a stack is utilized. Adjusting the resistive value of the variable resistor, or the voltage level of the variable power supply, directly controls the current in the fuel cell. In accordance with Kirchoff s Current Law, decreasing the fuel cell voltage increases the current through the fuel cell, while the fuel cell stack is operational, and poisons deposited on the anode and cathode electrocatalysts are removed, thereby rejuvenating the fuel cell. Typically, the removal of cell poisons only requires short, periodic pulsing of the fuel cell potential. Methods and devices for determining the limiting processes within a fuel cell thus enabling the optimization of the fuel cell stack performance to diagnose the fuel cell stack are also disclosed.
摘要翻译： 公开了用于在燃料电池堆中回收，补充或绕过单个燃料电池或一组燃料电池的方法和装置。 所述方法和装置提供用于去除燃料电池的阳极部分和阴极部分上的催化剂毒物并提供电解质操作改进的机构。 利用与单个燃料电池或一组燃料电池并联地控制可变电阻器或可变电源的控制器。 调整可变电阻的电阻值或可变电源的电压电平直接控制燃料电池中的电流。 根据Kirchoff电流法，降低燃料电池电压会增加通过燃料电池的电流，同时燃料电池堆可操作，并且去除沉积在阳极和阴极电催化剂上的毒物，从而使燃料电池恢复活力。 通常，细胞毒素的去除只需要燃料电池电位的短暂周期性脉冲。 还公开了用于确定燃料电池内的限制过程的方法和装置，从而能够优化燃料电池堆的性能以诊断燃料电池堆。
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