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    • 4. 发明授权
    • Compliant current collector for fuel cell anode and cathode
    • 符合燃料电池阳极和阴极的集电器
    • US08048587B2
    • 2011-11-01
    • US10305881
    • 2002-11-27
    • Haskell SimpkinsKarl J. Haltiner, Jr.Subhasish MukerjeeKenneth Scott WeilDean Paxton
    • Haskell SimpkinsKarl J. Haltiner, Jr.Subhasish MukerjeeKenneth Scott WeilDean Paxton
    • H01M4/86H01M8/02
    • H01M8/0232H01M8/2425H01M8/248
    • An electrically-conductive mesh spacer incorporated into the hydrogen and air gas flow spaces between each anode and cathode and its adjacent interconnect in a fuel cell stack. The mesh is formed of metal strands and is formed into a predetermined three-dimensional pattern to make contact at a plurality of points on the surfaces of the electrode and the interconnect element. The formed mesh spacer is secured as by brazing to the interconnect element at a plurality of locations to form an interconnect, which preserves the pattern during assembly of a fuel cell stack. The height of the formed pattern is greater than the height of a gas flow space after fuel cell assembly, such that the mesh spacer is slightly compressed during assembly of a fuel cell stack. Because the metal mesh is both compliant and resilient, the compressed spacer is continuously urged into mechanical and electrical contact with its electrode over all temperatures and pressures to which the fuel cell assembly may be subjected during use.
    • 导电网格隔离物,其结合在燃料电池堆中的每个阳极和阴极之间的氢气和空气气体流动空间及其相邻的互连中。 网格由金属线形成,并且形成为预定的三维图案以在电极和互连元件的表面上的多个点处接触。 形成的网格间隔件通过在多个位置处通过钎焊固定到互连元件上,以形成互连,其在燃料电池堆的组装期间保持图案。 形成的图案的高度大于燃料电池组件之后的气体流动空间的高度,使得在燃料电池堆的组装期间网格间隔件被轻微地压缩。 因为金属网既顺从又具有弹性,所以在使用期间燃料电池组件可能经受的所有温度和压力下,压缩间隔物被连续推动与其电极机械和电接触。