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1. 发明授权

US4337571A Method for producing a fuel cell manifold seal 失效
标题翻译：燃料电池歧管密封件的制造方法
公开(公告)号：US4337571A
公开(公告)日：1982-07-06
申请号：US91843
申请日：1979-11-06
申请人： Paul E. Grevstad , Carl K. Johnson , Anthony P. Mientek
发明人： Paul E. Grevstad , Carl K. Johnson , Anthony P. Mientek
IPC分类号： H01M8/24 , H01M2/08 , H01M8/00
CPC分类号： H01M8/2485 , Y10T29/4911
摘要： A manifold-to-stack seal and sealing method for fuel cell stacks. This seal system solves the problem of maintaining a low leak rate manifold seal as the fuel cell stack undergoes compressive creep. The seal system eliminates the problem of the manifold-to-stack seal sliding against the rough stack surface as the stack becomes shorter because of cell creep, which relative motion destroys the seal. The seal system described herein utilizes a polymer seal frame firmly clamped between the manifold and the stack such that the seal frame moves with the stack. Thus, as the stack creeps, the seal frame creeps with it, and there is no sliding at the rough, tough to seal, stack-to-seal frame interface. Here the sliding is on a smooth easy to seal location between the seal frame and the manifold.
摘要翻译：用于燃料电池堆的歧管 - 堆叠密封和密封方法。该密封系统解决了当燃料电池堆经历压缩蠕变时维持低泄漏率歧管密封的问题。密封系统消除了由于电池蠕变而导致堆叠变短的歧管 - 堆叠密封件抵抗粗糙堆叠表面的问题，该相对运动破坏了密封。本文所述的密封系统利用聚合物密封框架牢固地夹紧在歧管和堆叠之间，使得密封框架与堆叠件一起移动。因此，当堆叠爬行时，密封框架随之爬行，并且在粗糙，难以密封，堆叠到密封框架界面处没有滑动。在这里，滑动在密封框架和歧管之间的平滑容易密封位置。

2. 发明授权

US4212929A Fuel cell manifold sealing system 失效
标题翻译：燃料电池歧管密封系统
公开(公告)号：US4212929A
公开(公告)日：1980-07-15
申请号：US27690
申请日：1979-04-06
申请人： Paul E. Grevstad , Carl K. Johnson , Anthony P. Mientek
发明人： Paul E. Grevstad , Carl K. Johnson , Anthony P. Mientek
IPC分类号： H01M8/24 , H01M2/08
CPC分类号： H01M8/2485
摘要： A manifold-to-stack seal and sealing method for fuel cell stacks. This seal system solves the problem of maintaining a low leak rate manifold seal as the fuel cell stack undergoes compressive creep. The seal system eliminates the problem of the manifold-to-stack seal sliding against the rough stack surface as the stack becomes shorter because of cell creep, which relative motion destroys the seal. The seal system described herein utilizes a polymer seal frame firmly clamped between the manifold and the stack such that the seal frame moves with the stack. Thus, as the stack creeps, the seal frame creeps with it, and there is no sliding at the rough, tough to seal, stack-to-seal frame interface. Here the sliding is on a smooth easy to seal location between the seal frame and the manifold.
摘要翻译：用于燃料电池堆的歧管 - 堆叠密封和密封方法。该密封系统解决了当燃料电池堆经历压缩蠕变时维持低泄漏率歧管密封的问题。密封系统消除了由于电池蠕变而导致堆叠变短的歧管 - 堆叠密封件抵抗粗糙堆叠表面的问题，该相对运动破坏了密封。本文所述的密封系统利用聚合物密封框架牢固地夹紧在歧管和堆叠之间，使得密封框架与堆叠件一起移动。因此，当堆叠爬行时，密封框架随之爬行，并且在粗糙，难以密封，堆叠到密封框架界面处没有滑动。在这里，滑动在密封框架和歧管之间的平滑容易密封位置。

3. 发明授权

US4612262A Process for adding electrolyte to a fuel cell stack 失效
标题翻译：将电解质添加到燃料电池堆的方法
公开(公告)号：US4612262A
公开(公告)日：1986-09-16
申请号：US638337
申请日：1984-08-06
申请人： Paul E. Grevstad
发明人： Paul E. Grevstad
IPC分类号： H01M8/02 , H01M2/36 , H01M8/04
CPC分类号： H01M8/04283 , H01M2/36
摘要： Electrolyte is replenished in a fully assembled stack of fuel cells by depositing dilute electrolyte of known concentration on an external vertical face of the stack. The electrolyte is absorbed into the cell components through their edges by capillary action. Electrolyte is continuously deposited on the stack surface until the electrodes and matrix layers of the stack are fully saturated. Thereafter the stack is heated and water is evaporated until the stack has a desired operable electrolyte volume and electrolyte concentration therein. By knowing the total volume of electrolyte in the stack when the stack is fully saturated, and by knowing the concentration of the electrolyte in the fully saturated stack, the conditions under which water is thereafter evaporated may be controlled to result in the desired electrolyte volume and electrolyte concentration within the stack.
摘要翻译：通过在堆叠的外部垂直面上沉积已知浓度的稀释电解质，在完全组装的燃料电池堆中补充电解质。电解质通过毛细管作用通过其边缘吸收到细胞组分中。电解质在堆叠表面上连续沉积，直到堆叠的电极和基质层完全饱和。此后，堆叠被加热并且蒸发水，直到堆叠具有期望的可操作的电解质体积和其中的电解质浓度。通过了解堆叠完全饱和时堆叠中的电解质的总体积，并且通过了解完全饱和的堆叠中的电解质的浓度，可以控制随后蒸发水的条件以产生所需的电解质体积，堆内的电解质浓度。

4. 发明授权

US3969145A Fuel cell cooling system using a non-dielectric coolant 失效
标题翻译：使用非电介质冷却剂的燃料电池冷却系统
公开(公告)号：US3969145A
公开(公告)日：1976-07-13
申请号：US597613
申请日：1975-07-21
申请人： Paul E. Grevstad , Raymond L. Gelting
发明人： Paul E. Grevstad , Raymond L. Gelting
IPC分类号： H01M8/02 , H01M8/04 , H01M8/08
CPC分类号： H01M8/04074 , H01M8/04029 , H01M8/08
摘要： A cooler for removing waste heat from a stack of fuel cells uses a non-dielectric coolant which is carried in a plurality of tubes passing through one or more separator plates in the stack. Preferably the coolant is water so that heat removal is by evaporation of the water within the tubes by boiling. The tubes are electrically insulated from the cells by a coating of dielectric material such as polytetrafluoroethylene. In one embodiment of the present invention the cooler tubes are connected to the stack coolant supply conduits by dielectric hoses having a high length to diameter ratio to provide a several hundred thousand ohm impedance path in case of a flaw in the protective dielectric coating, in order that a short circuit of the stack does not occur.
摘要翻译：用于从一堆燃料电池中去除废热的冷却器使用非介电冷却剂，其被携带在穿过堆叠中的一个或多个隔板的多个管中。优选地，冷却剂是水，从而通过煮沸来蒸发管内的水来除热。这些管通过介电材料如聚四氟乙烯的涂层与电池电绝缘。在本发明的一个实施例中，冷却器管通过具有高长径比的介质软管连接到堆叠冷却剂供应管道，以便在保护电介质涂层中的缺陷的情况下按顺序提供数十万欧姆阻抗路径堆栈的短路不会发生。

5. 发明授权

US4035551A Electrolyte reservoir for a fuel cell 失效
标题翻译：燃料电池用电解槽
公开(公告)号：US4035551A
公开(公告)日：1977-07-12
申请号：US719877
申请日：1976-09-01
申请人： Paul E. Grevstad
发明人： Paul E. Grevstad
IPC分类号： H01M2/18 , H01M4/86 , H01M8/00 , H01M8/02 , H01M8/14
CPC分类号： H01M4/86 , H01M8/00
摘要： An electrolyte reservoir layer disposed behind and adjacent one of the catalyst layers of a fuel cell is a porous, hydrophilic material. Excess liquid volume wicks into the reservoir layer through the catalyst layer and fills the smaller pores within the reservoir. The larger pores remain empty and provide clear passageways for the reactant gas to reach the catalyst. Wetproofing of the reservoir layer is not required. In a preferred embodiment the reservoir layer is the electrode substrate whereby the catalyst layer is bonded to the surface thereof.
摘要翻译：设置在燃料电池的催化剂层之后和相邻的电解质储存层是多孔的亲水材料。过多的液体体积通过催化剂层吸入储层，并填充储层内较小的孔。较大的孔保持空，并为反应气体到达催化剂提供了清晰的通道。不需要对储层进行防水处理。在优选实施例中，储存层是电极基底，由此催化剂层与其表面结合。

6. 发明授权

US3964929A Fuel cell cooling system with shunt current protection 失效
标题翻译：具有分流电流保护的燃料电池冷却系统
公开(公告)号：US3964929A
公开(公告)日：1976-06-22
申请号：US597612
申请日：1975-07-21
申请人： Paul E. Grevstad
发明人： Paul E. Grevstad
IPC分类号： H01M8/04 , H01M8/08
CPC分类号： H01M8/04029 , H01M8/08
摘要： A fuel cell coolant system for use with a plurality of fuel cell stacks connected electrically in series is adapted to use a non-dielectric coolant carried through each stack by electrically conductive tubes. Each stack also includes a plenum for distributing coolant to the tubes. To prevent short circuits across the stacks due to shunt currents in the coolant the plenums are electrically insulated from a grounded main coolant supply line, such as by dielectric hose connections, and each plenum is electrically connected to one end of its respective stack. By this invention the maximum driving potential for any shunt current is the potential drop across a stack rather than the potential drop from a stack to ground. In a preferred embodiment dielectric hoses are used to connect the plenums to the tubes in order to prevent short circuiting across cells within a stack.
摘要翻译：用于串联电连接的多个燃料电池堆的燃料电池冷却剂系统适用于通过导电管使用通过每个电池堆的非电介质冷却剂。每个堆叠还包括用于将冷却剂分配到管的增压室。为了防止由于冷却剂中的分流而导致堆叠处的短路，气室与接地的主冷却剂供应管线例如通过介电软管连接件电绝缘，并且每个气室电连接到其相应堆叠的一端。通过本发明，任何分流电流的最大驱动电位是跨叠层的电位降，而不是从堆到地的电位降。在优选实施例中，使用介质软管将集气室连接到管，以防止在堆叠内的电池短路。

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