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公开(公告)号：US07968238B2
公开(公告)日：2011-06-28
申请号：US11752559
申请日：2007-05-23
CPC分类号： H01M8/04089 , H01M8/04589 , H01M8/04753 , H01M8/0488
摘要： A method for operating a fuel cell system including a fuel cell stack composed of a plurality of cells connected in series. The method includes the steps of: (a) supplying a fuel and an oxidant to anodes and cathodes of the cells, respectively, depending on a load to generate power at a constant voltage under constant voltage control; (b) temporarily suspending the supply of the oxidant with the fuel being supplied; and (c) lowering the constant voltage to a predetermined voltage simultaneously with or immediately before the suspension of the supply of the oxidant. According to this operation method, when the supply of the oxidant is suspended, a platinum catalyst in the cathodes can be reduced and reactivated in all the cells.
摘要翻译： 一种操作燃料电池系统的方法，所述燃料电池系统包括由串联连接的多个电池组成的燃料电池堆。 该方法包括以下步骤：（a）根据负载分别向电池的阳极和阴极供应燃料和氧化剂，以在恒定电压下以恒定电压控制发电; （b）暂时中止所供应的燃料供应氧化剂; 和（c）在氧化剂的供给停止之前或之前同时将恒定电压降低到预定电压。 根据该操作方法，当悬浮氧化剂的供给时，阴极中的铂催化剂可以在所有的电池中被还原并重新活化。
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公开(公告)号：US07687167B2
公开(公告)日：2010-03-30
申请号：US10894221
申请日：2004-07-19
CPC分类号： H01M8/0494 , H01M8/04186 , H01M8/04656 , H01M8/1009 , H01M10/42 , H01M16/006
摘要： A clean power supply unit with a high fuel utilization rate using a fuel cell is provided. The power supply unit of the present invention comprises a fuel cell using methanol as fuel; a secondary battery for supplying power to a load; a fuel cell control part for controlling the amount of fuel and/or air supplied to the above-mentioned fuel cell; and a power converter for converting the power output from the above-mentioned fuel cell to a predetermined voltage or current, supplying power to the load and/or the above-mentioned secondary battery and controlling the supplied power so as to fall within a predetermined range including the value at which the amount of methanol discharged from the above-mentioned fuel cell becomes minimized.
摘要翻译： 提供了一种使用燃料电池的燃料利用率高的清洁电源装置。 本发明的电源装置包括使用甲醇作为燃料的燃料电池; 用于向负载供电的二次电池; 燃料电池控制部，用于控制供给到所述燃料电池的燃料量和/或空气量; 以及用于将从上述燃料电池输出的功率转换为预定电压或电流的功率转换器，向负载和/或上述二次电池供电并控制所提供的功率以落在预定范围内 包括从上述燃料电池排出的甲醇量变得最小的值。
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公开(公告)号：US08182955B2
公开(公告)日：2012-05-22
申请号：US12687669
申请日：2010-01-14
CPC分类号： H01M8/1011 , H01M8/04186 , Y02E60/523
摘要： A method for operating a direct methanol fuel cell is provided. The fuel cell includes a fuel cell main body having a fuel electrode and an air electrode disposed in opposing positions on either side of an electrolyte film. In this method, an aqueous methanol solution is supplied directly to the fuel electrode. A quantity of the aqueous methanol solution supplied is controlled in accordance with an electric current value drawn from the fuel cell main body so as to minimize a quantity of unused methanol within a discharge fluid discharged from the fuel electrode.
摘要翻译： 提供了一种操作直接甲醇燃料电池的方法。 燃料电池包括具有燃料电极的燃料电池主体和设置在电解质膜两侧的相对位置的空气电极。 在该方法中，将甲醇水溶液直接供给到燃料电极。 根据从燃料电池主体抽出的电流值来控制供给的甲醇水溶液的量，以便使从燃料电极排出的排出流体中的未使用的甲醇的量最小化。
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公开(公告)号：US20070278968A1
公开(公告)日：2007-12-06
申请号：US11808039
申请日：2007-06-06
IPC分类号： H05B41/24
CPC分类号： H05B41/2886 , Y02B20/202
摘要： A power supply apparatus is provided which includes: a fuel cell; a power storage device which stores electric power; a connection terminal for connecting a load; a charge-used voltage converter which converts the output voltage of the fuel cell into a charging voltage for charging the power storage device and charges the power storage device; and an output-used voltage converter which converts the output voltage of the power storage device into a predetermined set output voltage and outputs it to the connection terminal.
摘要翻译： 提供一种电源装置，包括：燃料电池; 储存电力的蓄电装置; 用于连接负载的连接端子; 电荷使用电压转换器，其将燃料电池的输出电压转换成用于对蓄电装置充电的充电电压，并对蓄电装置充电; 以及输出用电压转换器，其将蓄电装置的输出电压转换为预定的设定输出电压，并将其输出到连接端子。
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公开(公告)号：US20050040786A1
公开(公告)日：2005-02-24
申请号：US10900931
申请日：2004-07-28
申请人： Toshihiko Ichinose , Masahiro Takada , Katsumi Kozu , So Kuranaka
发明人： Toshihiko Ichinose , Masahiro Takada , Katsumi Kozu , So Kuranaka
CPC分类号： H02J7/34
摘要： The power supply apparatus of the present invention comprises a fuel cell, a secondary battery for supplying power to a load, a power measurement section for measuring the output power of the fuel cell, a power converter which inputs output of the fuel cell, controls the output power so that the input voltage or the input current approaches the operation target value, supplies the output power to the load and/or the secondary battery and conducts a power conversion, and a control section which controls quantity of fuel to be supplied to the fuel cell, and also indicates to the power converter of an operation target value that comes within predetermined range which includes the smallest quantity of fuel the fuel cell discharges, wherein the control section sequentially indicates a plurality of the target values for power measurement to the power converter, the power measurement section measures the output power of the fuel cell for each target value for power measurement, and the control section seeks the target value which gives the maximum power within a plurality of output powers, and updates the operation target value based on that value.
摘要翻译： 本发明的电源装置包括燃料电池，用于向负载供电的二次电池，用于测量燃料电池的输出功率的功率测量部，输入燃料电池的输出的功率转换器， 输出功率使得输入电压或输入电流接近操作目标值，将输出功率提供给负载和/或二次电池并进行电力转换，以及控制部分，其控制要供应给燃料的燃料量 燃料电池，并且还向功率转换器指示在包括燃料电池放电的最小燃料量的预定范围内的操作目标值，其中控制部分依次指示用于功率测量的多个目标值至功率 转换器，功率测量部分测量用于功率测量的每个目标值的燃料电池的输出功率，以及控制 l部分寻找给出多个输出功率内的最大功率的目标值，并且基于该值来更新操作目标值。
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公开(公告)号：US08470481B2
公开(公告)日：2013-06-25
申请号：US12708835
申请日：2010-02-19
IPC分类号： H01M8/04
CPC分类号： H01M8/0494 , H01M8/04186 , H01M8/04656 , H01M8/1009 , H01M10/42 , H01M16/006
摘要： A clean power supply unit with a high fuel utilization rate using a fuel cell is provided. The power supply unit of the present invention comprises a fuel cell using methanol as fuel; a secondary battery for supplying power to a load; a fuel cell control part for controlling the amount of fuel and/or air supplied to the above-mentioned fuel cell; and a power converter for converting the power output from the above-mentioned fuel cell to a predetermined voltage or current, supplying power to the load and/or the above-mentioned secondary battery and controlling the supplied power so as to fall within a predetermined range including the value at which the amount of methanol discharged from the above-mentioned fuel cell becomes minimized.
摘要翻译： 提供了一种使用燃料电池的燃料利用率高的清洁电源装置。 本发明的电源装置包括使用甲醇作为燃料的燃料电池; 用于向负载供电的二次电池; 燃料电池控制部，用于控制供给到所述燃料电池的燃料量和/或空气量; 以及用于将从上述燃料电池输出的功率转换为预定电压或电流的功率转换器，向负载和/或上述二次电池供电并控制所提供的功率以落在预定范围内 包括从上述燃料电池排出的甲醇量变得最小的值。
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公开(公告)号：US20100143812A1
公开(公告)日：2010-06-10
申请号：US12708835
申请日：2010-02-19
IPC分类号： H01M8/04
CPC分类号： H01M8/0494 , H01M8/04186 , H01M8/04656 , H01M8/1009 , H01M10/42 , H01M16/006
摘要： A clean power supply unit with a high fuel utilization rate using a fuel cell is provided. The power supply unit of the present invention comprises a fuel cell using methanol as fuel; a secondary battery for supplying power to a load; a fuel cell control part for controlling the amount of fuel and/or air supplied to the above-mentioned fuel cell; and a power converter for converting the power output from the above-mentioned fuel cell to a predetermined voltage or current, supplying power to the load and/or the above-mentioned secondary battery and controlling the supplied power so as to fall within a predetermined range including the value at which the amount of methanol discharged from the above-mentioned fuel cell becomes minimized.
摘要翻译： 提供了一种使用燃料电池的燃料利用率高的清洁电源装置。 本发明的电源装置包括使用甲醇作为燃料的燃料电池; 用于向负载供电的二次电池; 燃料电池控制部，用于控制供给到所述燃料电池的燃料量和/或空气量; 以及用于将从上述燃料电池输出的功率转换为预定电压或电流的功率转换器，向负载和/或上述二次电池供电并控制所提供的功率以落在预定范围内 包括从上述燃料电池排出的甲醇量变得最小的值。
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公开(公告)号：US20100119891A1
公开(公告)日：2010-05-13
申请号：US12687669
申请日：2010-01-14
IPC分类号： H01M8/00
CPC分类号： H01M8/1011 , H01M8/04186 , Y02E60/523
摘要： A method for operating a direct methanol fuel cell is provided. The fuel cell includes a fuel cell main body having a fuel electrode and an air electrode disposed in opposing positions on either side of an electrolyte film. In this method, an aqueous methanol solution is supplied directly to the fuel electrode. A quantity of the aqueous methanol solution supplied is controlled in accordance with an electric current value drawn from the fuel cell main body so as to minimize a quantity of unused methanol within a discharge fluid discharged from the fuel electrode.
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公开(公告)号：US20080116873A1
公开(公告)日：2008-05-22
申请号：US11628778
申请日：2005-09-16
CPC分类号： H02J7/34 , H01M8/04186 , H01M8/04559 , H01M8/0494 , H01M8/04992 , H01M8/0662 , H01M8/1011 , Y02E60/523
摘要： A power supply is provided, which is capable of stabilizing a generated output of the fuel cell using neither a voltage nor a current outputted from the fuel cell as a negative feedback signal. The power supply includes a fuel cell 110, a DC-DC converter 120 that adjusts a voltage outputted from the fuel cell 110 according to a PWM signal and then outputs the voltage to a load device 200, a switching controller 130 that generates the PWM signal and outputs this signal to the DC-DC converter 120, a voltmeter 140 that measures a voltage Vout outputted from the DC-DC converter 120, and a rechargeable battery 150 connected to the load device 200 in parallel. The DC-DC converter 120 calculates a duty ratio of the PWM signal by performing a specific computation using the voltage Vout and a target fuel cell voltage Vt.
摘要翻译： 提供一种电源，其能够使用既不是电压也不使用从燃料电池输出的电流作为负反馈信号来稳定所产生的燃料电池的输出。 电源包括根据PWM信号调节从燃料电池110输出的电压的燃料电池110，DC-DC转换器120，然后将电压输出到负载装置200，产生PWM信号的开关控制器130 并将该信号输出到DC-DC转换器120，测量从DC-DC转换器120输出的电压Vout的电压计140和并联连接到负载装置200的可再充电电池150。 DC-DC转换器120通过使用电压Vout和目标燃料电池电压Vt进行特定的运算来计算PWM信号的占空比。
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10.发明申请公开(公告)号：US20070009770A1
公开(公告)日：2007-01-11
申请号：US11477803
申请日：2006-06-30
CPC分类号： H01M16/006 , H02J7/34 , Y10T307/511 , Y10T307/625 , Y10T307/675
摘要： Electronic equipment is provided in which a bi-directional voltage converter is connected between a fuel cell and a secondary battery, and a load apparatus is connected in parallel to the fuel cell. Further, if a plurality of voltage converters are provided, when each output voltage is closer to an output voltage of the secondary battery than an output voltage of the fuel cell, they are classified into a first voltage-converter group, while being closer to the output voltage of the fuel cell than the output voltage of the secondary battery, they are sorted out as a second voltage-converter group. Then, the secondary battery is connected in parallel to the first voltage-converter group and the fuel cell is connected in parallel to the second voltage-converter group.
摘要翻译： 提供了一种电子设备，其中双向电压转换器连接在燃料电池和二次电池之间，并且负载装置与燃料电池并联连接。 此外，如果设置多个电压转换器，则当每个输出电压比燃料电池的输出电压更接近于二次电池的输出电压时，它们被分类为第一电压转换器组，同时更靠近 燃料电池的输出电压与二次电池的输出电压相比，它们被分类为第二电压转换器组。 然后，二次电池与第一电压转换器组并联连接，并且燃料电池与第二电压转换器组并联连接。
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