Fuel cell power packs and methods of making such packs

    公开(公告)号:US20040062978A1

    公开(公告)日:2004-04-01

    申请号:US10261857

    申请日:2002-10-01

    Applicant: Graftech, Inc.

    Abstract: The invention relates to power packs, which comprises a plurality of fuel cells and a reactant supply element. In one embodiment, the power pack comprises a reactant supply element for a reactant comprising one of a fuel or an oxidant; and a plurality of cylindrical fuel cells. The reactant supply element is aligned with the plurality to be capable to deliver the reactant to more than one fuel cell of the plurality. In a second embodiment, the power pack comprises a reactant supply element for a reactant comprising a fuel and a plurality of fuel cells attached to the reactant supply element. At least two of the plurality are removably attached to the reactant supply element, and the power pack comprises a passive oxidant supply.

    Fuel cell power packs and methods of making such packs
    22.
    发明申请
    Fuel cell power packs and methods of making such packs 审中-公开
    燃料电池电源组件和制造这种包装的方法

    公开(公告)号:US20040062977A1

    公开(公告)日:2004-04-01

    申请号:US10261856

    申请日:2002-10-01

    Applicant: Graftech, Inc.

    Abstract: The invention relates to power packs, which comprises a plurality of fuel cells and a reactant supply element. In one embodiment, the power pack comprises a reactant supply element for a reactant comprising one of a fuel or an oxidant; and a plurality of cylindrical fuel cells. The reactant supply element is aligned with the plurality to be capable to deliver the reactant to more than one fuel cell of the plurality. In a second embodiment, the power pack comprises a reactant supply element for a reactant comprising a fuel and a plurality of fuel cells attached to the reactant supply element. At least two of the plurality are removably attached to the reactant supply element, and the power pack comprises a passive oxidant supply.

    Abstract translation: 本发明涉及动力组件,其包括多个燃料电池和反应物供应元件。 在一个实施例中,动力单元包括用于包括燃料或氧化剂之一的反应物的反应物供应元件; 和多个圆柱形燃料电池。 反应物供应元件与多个对准以能够将反应物输送到多个燃料电池中的一个以上的燃料电池。 在第二实施例中,动力单元包括用于反应物的反应物供应元件,该反应物包括燃料和连接到反应物供应元件上的多个燃料电池。 多个中的至少两个可移除地附接到反应物供应元件,并且动力单元包括无源氧化剂源。

    Graphite intercalation and exfoliation process
    23.
    发明申请
    Graphite intercalation and exfoliation process 失效
    石墨插层和剥离过程

    公开(公告)号:US20040033189A1

    公开(公告)日:2004-02-19

    申请号:US10219176

    申请日:2002-08-15

    Applicant: Graftech Inc.

    Abstract: The invention relates to expanded graphite and methods of making the graphite and products that can be made from the graphite made from the inventive process. The invention includes the step of introducing a fluid into at least one of a plurality of interstices of graphite flake, wherein the fluid comprises at least one of a sub-critical point fluid, a near critical point fluid, or a supercritical fluid. The graphite flake is also intercalated with an intercalant and optionally an oxidizing agent. The invention may further include novel techniques of exfoliating the graphite. The invention may be practiced to make nano-sized graphite particles and also graphite composites. Preferred composites which may be made in accordance with the invention include conductive polymeric composites (thermally or electrically), paint composites, battery composites, capacitor composites, and pollution abatement catalyst support composites.

    Abstract translation: 本发明涉及膨胀石墨和制造石墨的方法以及可由本发明方法制成的石墨制成的产品。 本发明包括将流体引入到多个石墨片间隙中的至少一个中的步骤,其中流体包括亚临界点流体,临界点流体或超临界流体中的至少一个。 石墨片也插入插层剂和任选的氧化剂。 本发明还可以包括剥离石墨的新技术。 可以实施本发明以制备纳米尺寸的石墨颗粒和石墨复合材料。 可以根据本发明制备的优选的复合材料包括导电聚合复合材料(热或电),涂料复合材料,电池复合材料,电容器复合材料和减少污染的催化剂载体复合材料。

    Partially expanded, free flowing, acid treated graphite flake
    24.
    发明申请
    Partially expanded, free flowing, acid treated graphite flake 审中-公开
    部分膨胀,自由流动,酸处理的石墨片

    公开(公告)号:US20040000735A1

    公开(公告)日:2004-01-01

    申请号:US10185088

    申请日:2002-06-28

    Applicant: Graftech Inc.

    Abstract: Partially expanded graphite flake having a specific volume of no more than about 50 cm3/g, more preferably, about 10-25 cm3/g has excellent sheet forming properties and is readily moldable to form molded products, such as gaskets. The partially expanded graphite flake may be produced by a low temperature process, in which the flakes are first intercalated with an intercalation solution, then subjected to a low temperature exfoliation of below about 500null C. In an alternative process, the flakes are intercalated with no more than about 40 pph of an intercalation solution (less if the particles are not subjected to a subsequent washing step) and then exfoliated at conventional exfoliation temperatures of about 800null C.

    Abstract translation: 具有不超过约50cm 3 / g,更优选约10-25cm 3 / g的比体积的部分膨胀的石墨薄片具有优异的成型性能,并且易于模塑以形成模制产品,例如 垫片 部分膨胀的石墨薄片可以通过低温方法制备,其中薄片首先插入插层溶液,然后经受低于约500℃的低温剥离。在替代方法中,将薄片插入 不超过约40pph的嵌入溶液(如果颗粒不经过随后的洗涤步骤,则较少),然后在约800℃的常规剥离温度下剥离

    Assembling bipolar plates
    25.
    发明申请
    Assembling bipolar plates 审中-公开
    组装双极板

    公开(公告)号:US20030000640A1

    公开(公告)日:2003-01-02

    申请号:US10185085

    申请日:2002-06-28

    Applicant: Graftech Inc.

    Abstract: Methods are provided for manufacturing bipolar graphite articles. First and second components are formed from flexible graphite material. The first component may have a protrusion formed thereon, and the second component may have a recess formed therein which is complementary to the protrusion of the first component. The first and second components are assembled so that the protrusion of the first component is received in the recess of the second component. Preferably, the components are made from uncured resin impregnated graphite material. The assembled components are then pressed together and heated to cure the resin so as to bond the components together. Alternatively the second component, or both the components, may have flat surfaces which engage the other component.

    Abstract translation: 提供制造双极石墨制品的方法。 第一和第二部件由柔性石墨材料形成。 第一部件可以具有形成在其上的突起,并且第二部件可以具有形成在其中的与第一部件的突起互补的凹部。 组装第一和第二部件,使得第一部件的突出部被容纳在第二部件的凹部中。 优选地,组分由未固化的树脂浸渍的石墨材料制成。 然后将组装的组件压在一起并加热以固化树脂,以将组分粘合在一起。 或者,第二部件或两个部件可以具有与另一部件接合的平坦表面。

    Hydrophobic fuel cell electrode
    26.
    发明申请
    Hydrophobic fuel cell electrode 有权
    疏水燃料电池电极

    公开(公告)号:US20020172855A1

    公开(公告)日:2002-11-21

    申请号:US10184840

    申请日:2002-06-28

    Applicant: Graftech Inc.

    CPC classification number: H01M4/96 H01M8/1004 H01M2300/0082

    Abstract: An electrode for an electrochemical fuel cell is provided. More particularly, an electrode formed of a sheet of a compressed mass of expanded graphite particles having a plurality of transverse fluid channels passing through the sheet between first and second opposed surfaces of the sheet, is provided. The electrode is treated with a water resistant additive sufficient to provide utility as a cathode in an electrochemical fuel cell.

    Abstract translation: 提供了一种用于电化学燃料电池的电极。 更具体地说,提供了一种电极,其由具有在片材的第一和第二相对表面之间穿过片材的多个横向流体通道的压缩膨胀石墨颗粒片构成。 电极用足以在电化学燃料电池中用作阴极的耐水添加剂进行处理。

Patent Agency Ranking