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    • 2. 发明申请
    • IN SITU FABRICATED ELECTROCHEMICAL DEVICE
    • 在现代制造的电化学设备
    • WO2008140647A2
    • 2008-11-20
    • PCT/US2008/002721
    • 2008-02-29
    • THE REGENTS OF THE UNIVERSITY OF CALIFORNIAMCFARLAND, Eric, W.METIU, HoriaBURATTO, Steven, K.RANASINGHE, Devinda
    • MCFARLAND, Eric, W.METIU, HoriaBURATTO, Steven, K.RANASINGHE, Devinda
    • H01M4/88H01M4/86
    • H01M4/8853C25D5/02H01M4/8807H01M4/881H01M4/92H01M8/1004H01M8/1023H01M8/1039H01M8/1058
    • An electrochemical device, such as a fuel cell, and method of forming it, in which electrodes, such as anode and cathode, are disposed on a semipermeable or permeable membrane having ion conduction channels. Electrocatalyst is deposited on locations on the electrodes limited to and corresponding to the ion conduction channels. In a first embodiment, anode and cathode electrodes sandwich the membrane, a counter electrode is connected to one of the electrodes, electrolyte containing an electrochemical precursor to the electrocatalyst is applied to the other electrode whereby, upon applying current to the counter electrode, electrocatalyst is deposited on locations on the first electrode corresponding to the ion conduction channels. The process is repeated with the counter electrode connected on the other electrode of the cell. In a second embodiment, a combination of a first electrode and a first membrane is assembled as is a combination of a second electrode and a second membrane. A counter electrode and electrolyte containing an electrochemical precursor to the electrocatalyst are separately applied to the first combination, then the second combination whereby, upon applying current to the counter electrodes, electrocatalyst is deposited on locations on the first and second electrodes corresponding to the ion conduction channels. The surfaces of the first and second membranes are joined opposite their respective electrodes to a porous coupling layer to form the electrochemical device.
    • 诸如燃料电池的电化学装置及其形成方法,其中诸如阳极和阴极的电极设置在具有离子传导通道的半透膜或可渗透膜上。 电催化剂沉积在限定于并对应于离子传导通道的电极上的位置上。 在第一实施例中,阳极和阴极电极夹住膜,对电极连接到一个电极,将包含电催化剂的电化学前体的电解质施加到另一个电极,由此,在向对电极施加电流时,电催化剂为 沉积在对应于离子传导通道的第一电极上的位置上。 重复该过程,反电极连接在电池的另一个电极上。 在第二实施例中,第一电极和第一膜的组合如第二电极和第二膜的组合一样被组装。 将含有电催化剂的电化学前体的对电极和电解质分别施加到第一组合,然后第二组合,由此,在向对置电极施加电流时,电极催化剂沉积在对应于离子传导的第一和第二电极上的位置 通道。 第一和第二膜的表面与其各自的电极相对接合到多孔耦合层以形成电化学装置。
    • 9. 发明申请
    • IN SITU FABRICATED ELECTROCHEMICAL DEVICE
    • 在现代制造的电化学设备
    • WO2008140647A3
    • 2009-01-08
    • PCT/US2008002721
    • 2008-02-29
    • UNIV CALIFORNIAMCFARLAND ERIC WMETIU HORIABURATTO STEVEN KRANASINGHE DEVINDA
    • MCFARLAND ERIC WMETIU HORIABURATTO STEVEN KRANASINGHE DEVINDA
    • H01M4/88
    • H01M4/8853C25D5/02H01M4/8807H01M4/881H01M4/92H01M8/1004H01M8/1023H01M8/1039H01M8/1058
    • An electrochemical device, such as a fuel cell, and method of forming it, in which electrodes, such as anode and cathode, are disposed on a semipermeable or permeable membrane having ion conduction channels. Electrocatalyst is deposited on locations on the electrodes limited to and corresponding to the ion conduction channels. In a first embodiment, anode and cathode electrodes sandwich the membrane, a counter electrode is connected to one of the electrodes, electrolyte containing an electrochemical precursor to the electrocatalyst is applied to the other electrode whereby, upon applying current to the counter electrode, electrocatalyst is deposited on locations on the first electrode corresponding to the ion conduction channels. The process is repeated with the counter electrode connected on the other electrode of the cell. In a second embodiment, a combination of a first electrode and a first membrane is assembled as is a combination of a second electrode and a second membrane. A counter electrode and electrolyte containing an electrochemical precursor to the electrocatalyst are separately applied to the first combination, then the second combination whereby, upon applying current to the counter electrodes, electrocatalyst is deposited on locations on the first and second electrodes corresponding to the ion conduction channels. The surfaces of the first and second membranes are joined opposite their respective electrodes to a porous coupling layer to form the electrochemical device.
    • 诸如燃料电池的电化学装置及其形成方法,其中诸如阳极和阴极的电极设置在具有离子传导通道的半透膜或可渗透膜上。 电催化剂沉积在限定于并对应于离子传导通道的电极上的位置上。 在第一实施例中,阳极和阴极电极夹住膜,对电极连接到一个电极,将包含电催化剂的电化学前体的电解质施加到另一个电极,由此,在向对电极施加电流时,电催化剂为 沉积在对应于离子传导通道的第一电极上的位置上。 重复该过程,反电极连接在电池的另一个电极上。 在第二实施例中,第一电极和第一膜的组合如第二电极和第二膜的组合一样被组装。 将含有电催化剂的电化学前体的对电极和电解质分别施加到第一组合,然后第二组合,由此,在向对置电极施加电流时,电极催化剂沉积在对应于离子传导的第一和第二电极上的位置 通道。 第一和第二膜的表面与其各自的电极相对接合到多孔耦合层以形成电化学装置。