Microporous layer structures and gas diffusion layer assemblies in proton exchange membrane fuel cells
    2.
    发明授权
    Microporous layer structures and gas diffusion layer assemblies in proton exchange membrane fuel cells 有权
    质子交换膜燃料电池中的微孔层结构和气体扩散层组件

    公开(公告)号:US08945790B2

    公开(公告)日:2015-02-03

    申请号:US13832943

    申请日:2013-03-15

    IPC分类号: H01M4/86 H01M8/04

    摘要: In at least one embodiment, a microporous layer configured to be disposed between a catalyst layer and a gas diffusion layer of a fuel cell electrode assembly is provided. The microporous layer may have defined therein a plurality of hydrophilic pores, a plurality of hydrophobic pores with a diameter of 0.02 to 0.5 μm, and a plurality of bores with a diameter of 0.5 to 100 μm. The microporous layer structures and gas diffusion layer assemblies disclosed herein may be defined by a number of various designs and arrangements for use in proton exchange membrane fuel cell systems.

    摘要翻译: 在至少一个实施例中,提供了构造成设置在燃料电池电极组件的催化剂层和气体扩散层之间的微孔层。 微孔层可以在其中限定有多个亲水孔,多个直径为0.02至0.5μm的疏水孔,以及多个直径为0.5至100μm的孔。 本文公开的微孔层结构和气体扩散层组件可以由许多用于质子交换膜燃料电池系统的各种设计和布置来限定。

    MICROPOROUS LAYER STRUCTURES AND GAS DIFFUSION LAYER ASSEMBLIES FOR ENHANCED WATER MANAGEMENT IN PROTON EXCHANGE MEMBRANE FUEL CELLS
    6.
    发明申请
    MICROPOROUS LAYER STRUCTURES AND GAS DIFFUSION LAYER ASSEMBLIES FOR ENHANCED WATER MANAGEMENT IN PROTON EXCHANGE MEMBRANE FUEL CELLS 审中-公开
    微波层结构和气体扩散层组件,用于提高原子交换膜燃料电池中的水质管理

    公开(公告)号:US20150118600A1

    公开(公告)日:2015-04-30

    申请号:US14590378

    申请日:2015-01-06

    IPC分类号: H01M8/10

    摘要: A microporous layer forming a portion of a gas diffusion layer assembly positioned adjacent to a catalyst layer within a fuel cell electrode. The microporous includes a first carbon-based material layer comprising a plurality of hydrophobic pores with a diameter of 0.05 to 0.2 μm and a plurality of bores with a diameter of 1 to 20 μm. The microporous layer structures and gas diffusion layer assemblies disclosed herein may be defined by a number of various designs and arrangements for use in proton exchange membrane fuel cell systems.

    摘要翻译: 形成邻近燃料电池电极内的催化剂层的气体扩散层组件的一部分的微孔层。 微孔包括第一碳基材料层,其包含直径为0.05至0.2μm的多个疏水孔和多个直径为1至20μm的孔。 本文公开的微孔层结构和气体扩散层组件可以由许多用于质子交换膜燃料电池系统的各种设计和布置来限定。

    Metal oxide stabilized platinum-based ORR catalyst
    7.
    发明授权
    Metal oxide stabilized platinum-based ORR catalyst 有权
    金属氧化物稳定的铂基ORR催化剂

    公开(公告)号:US09468909B2

    公开(公告)日:2016-10-18

    申请号:US14316945

    申请日:2014-06-27

    摘要: In at least one embodiment, an oxygen reduction reaction catalyst (ORR) and a method for making the catalyst are provided. The method may include depositing a metal oxide on a graphitized carbon or graphene substrate. A platinum catalyst may then be deposited over the metal oxide to provide an ORR catalyst for use in, for example, a PEMFC. The metal oxide may be niobium oxide and may have an amorphous structure. The platinum catalyst may form a thin, electrically interconnected network structure overlaying the metal oxide. The ORR catalyst may be prepared by alternating the deposition of the metal oxide and the platinum catalyst, for example, using physical vapor deposition. The ORR catalyst may have a specific activity of at least 1,000 μA/cm2 Pt and may approach or achieve bulk Pt activity.

    摘要翻译: 在至少一个实施方案中,提供氧还原反应催化剂(ORR)和制备催化剂的方法。 该方法可以包括在石墨化碳或石墨烯衬底上沉积金属氧化物。 然后可以在金属氧化物上沉积铂催化剂以提供用于例如PEMFC的ORR催化剂。 金属氧化物可以是氧化铌,并且可以具有无定形结构。 铂催化剂可以形成覆盖金属氧化物的薄的,电互连的网络结构。 可以通过例如使用物理气相沉积交替沉积金属氧化物和铂催化剂来制备ORR催化剂。 ORR催化剂可以具有至少1,000μA/ cm 2 Pt的比活性,并且可以接近或实现体积Pt活性。

    Electrode with catalyst segmentation
    8.
    发明授权
    Electrode with catalyst segmentation 有权
    电极与催化剂分段

    公开(公告)号:US09595720B2

    公开(公告)日:2017-03-14

    申请号:US13827284

    申请日:2013-03-14

    发明人: James Waldecker

    摘要: A fuel cell assembly includes an anode with a catalyst layer and a gas inlet end, and a cathode with a catalyst layer and a gas inlet end. The assembly comprises a catalyst layer including a first and second set of catalyst segment pairs spaced apart respectively with first and second distances, a first ratio of an average segment width of the first set of catalyst segment pairs relative to the first distance being different from a second ratio of an average segment width of the second set of catalyst segment pairs relative to the second distance.

    摘要翻译: 燃料电池组件包括具有催化剂层和气体入口端的阳极以及具有催化剂层和气体入口端的阴极。 组件包括催化剂层,催化剂层包括分别具有第一和第二距离间隔开的第一组和第二组催化剂段对,第一组催化剂段对相对于第一距离的平均段宽度的第一比值不同于 第二组催化剂段对的平均段宽度相对于第二距离的第二比率。

    Microporous layer for a fuel cell
    9.
    发明授权
    Microporous layer for a fuel cell 有权
    用于燃料电池的微孔层

    公开(公告)号:US09461311B2

    公开(公告)日:2016-10-04

    申请号:US13832358

    申请日:2013-03-15

    IPC分类号: H01M4/86 H01M8/02 H01M8/10

    摘要: In at least one embodiment, a fuel cell is provided comprising a positive electrode including a first gas diffusion layer and a first catalyst layer, a negative electrode including a second gas diffusion layer and a second catalyst layer, a proton exchange membrane (PEM) disposed between the positive and negative electrodes, and a microporous layer of carbon and binder disposed between at least one of the first gas diffusion layer and the first catalyst layer and the second gas diffusion layer and the second catalyst layer. The microporous layer may have defined therein a plurality of pores with a diameter of 0.05 to 2.0 μm and a plurality of bores having a diameter of 1 to 100 μm. The bores may be laser perforated and comprise from 0.1 to 5 percent of a total porosity of the microporous layer.

    摘要翻译: 在至少一个实施例中,提供了一种燃料电池,其包括:包括第一气体扩散层和第一催化剂层的正极,包括第二气体扩散层和第二催化剂层的负极,设置有质子交换膜(PEM) 正极和负极之间,以及设置在第一气体扩散层和第一催化剂层中的至少一个与第二气体扩散层和第二催化剂层之间的碳和粘合剂的微孔层。 微孔层可以在其中限定直径为0.05至2.0μm的多个孔和多个直径为1至100μm的孔。 孔可以是激光穿孔的,并且包含微孔层的总孔隙率的0.1至5%。

    ELECTRODE WITH CATALYST SEGMENTATION
    10.
    发明申请
    ELECTRODE WITH CATALYST SEGMENTATION 有权
    电催化分解电极

    公开(公告)号:US20140272669A1

    公开(公告)日:2014-09-18

    申请号:US13827284

    申请日:2013-03-14

    发明人: James Waldecker

    IPC分类号: H01M4/86

    摘要: A fuel cell assembly includes an anode with a catalyst layer and a gas inlet end, and a cathode with a catalyst layer and a gas inlet end. The assembly comprises a catalyst layer including a first and second set of catalyst segment pairs spaced apart respectively with first and second distances, a first ratio of an average segment width of the first set of catalyst segment pairs relative to the first distance being different from a second ratio of an average segment width of the second set of catalyst segment pairs relative to the second distance.

    摘要翻译: 燃料电池组件包括具有催化剂层和气体入口端的阳极以及具有催化剂层和气体入口端的阴极。 组件包括催化剂层,催化剂层包括分别具有第一和第二距离间隔开的第一组和第二组催化剂段对,第一组催化剂段对相对于第一距离的平均段宽度的第一比值不同于 第二组催化剂段对的平均段宽度相对于第二距离的第二比率。