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    • 72. 发明公开
    • FUEL CELL SYSTEM
    • 燃料电池系统
    • EP2112706A1
    • 2009-10-28
    • EP08711696.8
    • 2008-02-14
    • Toyota Jidosha Kabushiki Kaisha
    • KAJIWARA, ShigetoIMAMURA, Tomonori
    • H01M8/04H01M8/00H01M8/10
    • H01M8/0485H01M8/04007H01M8/04082H01M8/04253H01M8/0432H01M8/04343H01M8/0435H01M8/04358H01M8/04388H01M8/04395H01M8/04649H01M8/04955
    • Provided is a fuel cell system which can accurately detect the water state of a fuel cell to appropriately control the water content of the fuel cell. Based on an FC outlet temperature detected by a temperature sensor, an FC outlet temperature change speed detection unit 180 detects an FC outlet temperature change speed for a unit time. If the FC outlet temperature change speed detection unit 180 judges that the detected FC outlet temperature change speed is lower than a change speed reference value stored in a memory 153, an impedance measurement instruction is transmitted to an impedance calculation unit 140. On receiving the impedance measurement instruction from the FC outlet temperature change speed detection unit 180, the impedance calculation unit 140 performs the impedance measurement for the second time. In consequence, it is possible to realize such scavenging control as to keep the water content of a fuel cell 40 at an appropriate level by the minimum number of impedance measurement times (e.g., twice).
    • 本发明提供一种燃料电池系统,该燃料电池系统能够正确地检测燃料电池的水的状态,适当地控制燃料电池的水分量。 基于由温度传感器检测到的FC出口温度,FC出口温度变化速度检测单元180检测单位时间的FC出口温度变化速度。 如果FC出口温度变化速度检测单元180判断检测到的FC出口温度变化速度低于存储在存储器153中的变化速度参考值,则阻抗测量指令被发送到阻抗计算单元140.在接收阻抗 来自FC出口温度变化速度检测单元180的测量指令,阻抗计算单元140第二次执行阻抗测量。 结果,可以实现这样的扫气控制,以便通过最小数量的阻抗测量时间(例如,两次)将燃料电池40的含水量保持在适当的水平。
    • 79. 发明公开
    • METHOD FOR PRODUCING CATALYST
    • 生产催化剂的方法
    • EP2561927A1
    • 2013-02-27
    • EP10850203.0
    • 2010-04-20
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • MIZUTANI Nobuaki
    • B01J23/52H01M4/88
    • H01M4/921B01J23/52B01J35/0033B01J35/0046B01J37/16H01M4/925H01M4/926Y02E60/50
    • This invention is intended to improve the coverage of a platinum or platinum alloy surface with gold when producing a catalyst comprising carrier particles that support gold-modified platinum or platinum alloys. The invention provides a method for producing a catalyst comprising carrier particles that support gold-modified platinum or platinum alloys comprising a step of gold reduction comprising adding carrier particles that support platinum or platinum alloys, a reducing agent, and a gold precursor to a liquid medium and mixing the same, wherein the reducing agent is added to adjust the ORP value (i.e., an oxidation-reduction potential with reference to the silver-silver chloride electrode) of the liquid medium to -630 to +230 mV upon completion of addition.
    • 本发明旨在当生产包含支持金改性的铂或铂合金的载体颗粒的催化剂时,用金改善铂或铂合金表面的覆盖度。 本发明提供了一种用于生产催化剂的方法,所述催化剂包含载体颗粒,所述载体颗粒负载经金修饰的铂或铂合金,所述载体颗粒包含金还原步骤,所述方法包括将支持铂或铂合金的载体颗粒,还原剂和金前体加入液体介质 并且将其混合,其中添加还原剂以在添加完成时将液体介质的ORP值(即参考银 - 氯化银电极的氧化还原电位)调节至-630至+ 230mV。