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    • 7. 发明授权
    • Rechargeable alkaline electrochemical cell
    • 可充电碱性电化学电池
    • US5607796A
    • 1997-03-04
    • US669144
    • 1996-06-24
    • Robert J. JacusJanna L. Rose
    • Robert J. JacusJanna L. Rose
    • H01M4/02H01M4/66H01M4/75H01M10/24
    • H01M10/24H01M4/661H01M2004/027H01M4/75
    • This invention pertains to rechargeable zinc alkaline electrochemical cells. In cells of the invention, the anode current collector comprises copper, and from about 0.5% by weight to about 11% silicon. Preferred compositions for the anode current collector comprise from about 1% by weight silicon to about 6% by weight silicon. Cells embodying anode current collectors of the invention exhibit reduced current flow under anode polarization in alkaline conditions, and reduced cell expansion under abusive electrical drain conditions. The cells are less susceptible to oxidation of the anode current collector, which is typically irreversible, than known brass anode current collectors. In general, cells of the invention are less susceptible to, and generally do not exhibit as much, irreversible chemical reaction activity, as conventional current collectors, especially oxidation of copper at the anode current collector.
    • 本发明涉及可充电锌碱性电化学电池。 在本发明的电池中,阳极集电器包括铜和约0.5重量%至约11重量%的硅。 用于阳极集电器的优选组合物包括约1重量%的硅与约6重量%的硅。 体现本发明的阳极集电器的电池在碱性条件下在阳极极化下表现出减少的电流流动,并且在滥用漏电条件下降低电池膨胀。 与已知的黄铜阳极集电器相比,电池不太容易氧化阳极集电器,这通常是不可逆的。 通常,本发明的电池对于常规集电器,特别是在阳极集电器处的铜的氧化,不易受到并且通常不表现出不可逆的化学反应活性。