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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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公开(公告)号：US06541941B2
公开(公告)日：2003-04-01
申请号：US10001975
申请日：2001-12-05
IPC分类号： H02J700
CPC分类号： H02J7/0019 , G01R31/3658 , G01R31/3679 , H02J7/0021 , H02J7/0022 , Y02T10/7055
摘要： A controller controls a switch bank which can shunt a voltage source in parallel with one or more fuel cells in a stack. By controlling the voltage of the voltage source, the current through the fuel cells is directly controlled. By increasing the anode potential of the fuel cell through control of the voltage source, poisons deposited on the electrocatalyst are removed, thereby rejuvenating the fuel cells. Fuel cells in a stack can be treated in turn, causing a reduction of the effects of electrocatalyst poison on stack performance.
摘要翻译： 控制器控制开关组，其可以与堆叠中的一个或多个燃料电池平行地分流电压源。 通过控制电压源的电压，直接控制通过燃料电池的电流。 通过控制电压源来增加燃料电池的阳极电位，去除沉积在电催化剂上的毒素，从而使燃料电池恢复活力。 可以依次处理堆叠中的燃料电池，导致电催化剂毒物对堆叠性能的影响的降低。
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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：US06339313B1
公开(公告)日：2002-01-15
申请号：US09706858
申请日：2000-11-07
IPC分类号： H02J0700
CPC分类号： H02J7/0019 , G01R31/3658 , G01R31/3679 , H02J7/0021 , H02J7/0022 , Y02T10/7055
摘要： A controller controls a switch bank which can shunt a voltage source in parallel with each fuel cell in a stack. By controlling the voltage of the voltage source, the current through the fuel cell is directly controlled. By increasing the anode potential of the fuel cell through control of the voltage source, poisons deposited on the electrocatalyst are removed, thereby rejuvenating the fuel cell. Each fuel cell in a stack can be treated in turn, causing a reduction of the effects of electrocatalyst poison on stack performance.
摘要翻译： 控制器控制开关组，该开关组可以与堆叠中的每个燃料电池平行地分流电压源。 通过控制电压源的电压，直接控制通过燃料电池的电流。 通过控制电压源来增加燃料电池的阳极电位，去除沉积在电催化剂上的毒素，从而使燃料电池再生。 堆叠中的每个燃料电池可以依次进行处理，从而降低电催化剂毒物对堆叠性能的影响。
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公开(公告)号：US4622508A
公开(公告)日：1986-11-11
申请号：US766211
申请日：1985-08-16
CPC分类号： H02J7/0026 , H02H7/18
摘要： This invention provides a method and apparatus to prevent a battery or any one cell of a multi-celled battery from undergoing voltage reversals by disconnecting the battery from a load when the battery or one cell falls below predetermined reference potential levels. Means are provided for comparing the potential levels and disconnecting the load when the decreased potential levels are detected.
摘要翻译： 本发明提供了一种方法和装置，用于当电池或一个电池低于预定参考电位电平时，通过将电池与负载断开来防止电池或多节电池的任何一个电池发生电压反转。 提供了用于在检测到降低的电位电平时比较潜在电平和断开负载的装置。
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