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    • 1. 发明授权
    • Start up of proton exchange membrane fuel cell
    • 启动质子交换膜燃料电池
    • US6127056A
    • 2000-10-03
    • US169405
    • 1998-10-09
    • Douglas J. WheelerLeonard J. Bonville
    • Douglas J. WheelerLeonard J. Bonville
    • H01M8/04
    • H01M8/04007H01M2300/0082H01M8/04022H01M8/04223
    • A proton exchange membrane fuel cell has a noble metal or noble metal alloy catalyst 15 disposed in its air inlet manifold 13. During start up, a fuel cell is warmed to operating temperature by introducing a small amount of hydrogen into a flow of air to the air inlet 12 of the fuel cell where they react with the catalyst to produce heat at subflame temperatures. The adiabatic temperature rise of the gas stream is limited to about 150.degree. F. by limiting the hydrogen to about one volume percent of the fuel/oxidant mixture, thereby to be capable of raising the fuel cell temperature, for instance, from -40.degree. C. (-40.degree. F.) to about +45.degree. C. (+113.degree. F.), without flame, explosion or drying out of the membrane.
    • 质子交换膜燃料电池具有设置在其空气入口歧管13中的贵金属或贵金属合金催化剂15.在启动期间,通过将少量的氢气引入到空气流中来将燃料电池温热至工作温度 燃料电池的空气入口12,其与催化剂反应以在亚燃烧温度下产生热量。 通过将氢气限制为约1体积%的燃料/氧化剂混合物,气流的绝热温度上限被限制在约150°F,从而能够提高燃料电池温度,例如从-40℃ (-40°F)至约+45°C(+ 113°F),无火焰,爆炸或干燥出膜。
    • 3. 发明授权
    • Electrochemical cell with a porous support plate
    • 电化学电池与多孔支撑板
    • US6024848A
    • 2000-02-15
    • US60583
    • 1998-04-15
    • Bryan Franz DufnerRichard David Breault
    • Bryan Franz DufnerRichard David Breault
    • C25B9/08H01M8/02H01M8/04H01M8/08H01M8/10C25B9/00H01M2/14
    • H01M8/0243C25B9/08H01M8/0245H01M8/0267H01M8/08H01M8/1007H01M2300/0082H01M8/0234H01M8/0239H01M8/04029H01M8/04291Y02P70/56
    • An improved electrochemical cell such as a fuel cell is disclosed including a porous support plate for enhancing transport of fluids throughout the cell and for enhancing capacitance and transient response capability of the cell. The electrochemical cell includes an electrolyte having opposed major surfaces with an anode and a cathode electrode supported in intimate contact with the opposed major surfaces. A porous support plate is secured adjacent each electrode, and each porous support plate includes a contact bi-layer in intimate contact with the electrode. Each contact bi-layer is comprised of a hydrophobic phase including a mixture of carbon black and a hydrophobic polymer defining a network of hydrophobic gas passages and each contact bi-layer also includes a hydrophilic phase including a mixture of carbon black and a proton exchange resin defining a network of hydrophilic liquid passages integrated throughout the contact bi-layer. Each porous support plate also includes a porous substrate layer adjacent and supporting the contact bi-layer. A method of manufacture of the porous support plate includes the steps of preparing a hydrophobic phase compound, preparing a hydrophilic phase compound, mixing and filtering the two compounds to form a contact bi-layer, transferring the contact bi-layer onto a porous substrate layer to form a porous support plate. An alternative method includes an additional step of activating the contact bi-layer in an acid bath at controlled electrical potentials to enhance capacitance of the cell.
    • 公开了一种改进的电化学电池,例如燃料电池,其包括用于增强流体在整个电池中的输送并用于增强电池的电容和瞬态响应能力的多孔支撑板。 电化学电池包括具有相对的主表面的电解质,阳极和阴极电极与相对的主表面紧密接触。 多孔支撑板固定在每个电极附近,并且每个多孔支撑板包括与电极紧密接触的接触双层。 每个接触双层由包含炭黑和限定疏水性气体通道网络的疏水性聚合物的混合物的疏水相组成,并且每个接触双层还包括亲水相,其包括炭黑和质子交换树脂的混合物 限定整个接触双层中集成的亲水液体通道的网络。 每个多孔支撑板还包括邻近和支撑接触双层的多孔基底层。 制造多孔支撑板的方法包括制备疏水相化合物,制备亲水相化合物,混合和过滤两种化合物以形成接触双层的步骤,将接触双层转移到多孔基材层上 以形成多孔支撑板。 替代方法包括在受控电位的酸浴中激活接触双层以增强电池电容的附加步骤。
    • 7. 发明授权
    • Fuel cell transport frame
    • 燃料电池运输框架
    • US5607786A
    • 1997-03-04
    • US435693
    • 1995-05-05
    • Robin J. GuthrieThomas J. Corrigan
    • Robin J. GuthrieThomas J. Corrigan
    • H01M8/24H01M12/08
    • H01M8/247
    • The present invention discloses a transport frame for transporting and maintaining a fuel cell stack assembly in a fixed position. The fuel cell stack asembly which is under compression by a top and bottom plate held together by tie rods positioned at the corners of each plate. The top and bottom plates are then mounted to a rigid frame for transporting the fuel cell. The tie rods being attached to mounts in the base plate of the rigid frame and an insulated attachment between the top plate of the fuel cell stack frame and the rigid frame is made. The fuel cell stack assembly being electrically insulated from the rigid frame.
    • 本发明公开了一种用于将燃料电池堆组件运输和维持在固定位置的运输框架。 由顶板和底板压缩的燃料电池堆组件,其通过位于每个板的角落处的拉杆保持在一起。 然后将顶板和底板安装到用于运输燃料电池的刚性框架。 连接杆安装在刚性框架的底板中,并且在燃料电池堆架框架的顶板和刚性框架之间形成绝缘附件。 燃料电池堆组件与刚性框架电绝缘。
    • 9. 发明授权
    • Electrolyte paste for molten carbonate fuel cells
    • 用于熔融碳酸盐燃料电池的电解质糊
    • US5468573A
    • 1995-11-21
    • US264540
    • 1994-06-23
    • Lawrance J. BregoliMark L. Pearson
    • Lawrance J. BregoliMark L. Pearson
    • H01M8/02H01M8/04H01M8/14
    • H01M8/142H01M8/04283H01M2008/147H01M2300/0051Y02E60/526
    • The electrolyte matrix and electrolyte reservoir plates in a molten carbonate fuel cell power plant stack are filled with electrolyte by applying a paste of dry electrolyte powder entrained in a dissipatable carrier to the reactant flow channels in the current collector plate. The stack plates are preformed and solidified to final operating condition so that they are self sustaining and can be disposed one atop the other to form the power plant stack. Packing the reactant flow channels with the electrolyte paste allows the use of thinner electrode plates, particularly on the anode side of the cells. The use of the packed electrolyte paste provides sufficient electrolyte to fill the matrix and to entrain excess electrolyte in the electrode plates, which also serve as excess electrolyte reservoirs. When the stack is heated up to operating temperatures, the electrolyte in the paste melts, the carrier vaporizes, or chemically decomposes, and the melted electrolyte is absorbed into the matrix and electrode plates.
    • 在熔融碳酸盐燃料电池发电厂堆叠中的电解质基质和电解质储存器板通过将夹带在可消散载体中的干电解质粉末的浆料施加到集电板中的反应物流动通道而填充有电解质。 堆叠板被预成型并固化成最终操作状态,使得它们是自维持的,并且可以一个放在另一个上以形成发电厂堆叠。 用电解质浆料包装反应物流动通道允许使用更薄的电极板,特别是在电池的阳极侧。 使用包装的电解质糊剂提供足够的电解质以填充基质并且将过量的电解质夹带在电极板中,这也用作过量的电解质储存器。 当堆叠被加热到操作温度时,糊料中的电解质熔化,载体蒸发或化学分解,并且熔融的电解质被吸收到基质和电极板中。