Method of adding electrolyte to a gap between the cathode and separator of an alkaline cell
    3.
    发明授权
    Method of adding electrolyte to a gap between the cathode and separator of an alkaline cell 有权
    将电解质添加到碱性电池的阴极和隔板之间的间隙的方法

    公开(公告)号:US07351495B2

    公开(公告)日:2008-04-01

    申请号:US10723190

    申请日:2003-11-26

    IPC分类号: H01M2/14 H01M4/50

    摘要: An alkaline cell having a flat housing, preferably of cuboid shape. The cell can have an anode comprising zinc and a cathode comprising MnO2. The housing can have a relatively small overall thickness, typically between about 5 and 10 mm. Cell contents can be supplied through an open end in the housing and an end cap assembly inserted therein to seal the cell. There can be a gap between separator and cathode for insertion of additional electrolyte. The end cap assembly includes a vent mechanism, preferably a grooved vent, which can activate, when gas pressure within the cell reaches a threshold level typically between about 250 and 800 psig (1724×103 and 5515×103 pascal gage). The cell can have a supplemental vent mechanism such as a laser welded region on the surface of the housing which may activate at higher pressure levels.

    摘要翻译: 具有平坦壳体,优选长方体形状的碱性电池。 电池可以具有包含锌的阳极和包含MnO 2 2的阴极。 壳体可以具有相对小的总体厚度,通常在约5和10mm之间。 细胞内容物可以通过壳体中的开口端和插入其中的端盖组件供应以密封电池。 分离器和阴极之间可能存在用于插入附加电解质的间隙。 端盖组件包括通气机构,优选地是带槽的通气口,当通气孔内的气体压力达到阈值水平时,通常在约250-800psig(1724×10-3和5515x10 / 3 帕斯卡计)。 电池可以具有补充排气机构,例如在壳体的表面上的激光焊接区域,其可以在较高压力水平下激活。

    Alkaline cell with improved cathode including copper hydroxide and a sulfur additive
    4.
    发明授权
    Alkaline cell with improved cathode including copper hydroxide and a sulfur additive 有权
    具有改进阴极的碱性电池,包括氢氧化铜和硫添加剂

    公开(公告)号:US06808847B2

    公开(公告)日:2004-10-26

    申请号:US10054424

    申请日:2002-01-22

    IPC分类号: H01M458

    摘要: An alkaline cell having an anode comprising zinc, an aqueous alkaline electrolyte, a cathode mixture comprising cathode active material comprising copper oxide or copper hydroxide. Graphitic carbon, preferably expanded graphite or graphitic carbon nanofibers are added to the cathode mixture thereby resulting in a sharp drop in cathode resistivity. Addition of sulfur to cathode mixtures comprising copper hydroxide active material improves performance. The sharp drop in cathode resistivity resulting from the addition of expanded graphite or graphitic carbon nanofibers makes the cell suitable for use as a primary alkaline cell having good capacity. The graphitic carbon, preferably comprises preferably between about 3 and 10 percent by weight of the cathode. The carbon nanofibers have an average diameter desirably less than 500 nanometers, preferably between about 50 and 300 nanometers.

    摘要翻译: 一种具有阳极的碱性电池,包括锌,碱性电解质水溶液,含有氧化铜或氢氧化铜的阴极活性材料的阴极混合物。 将石墨碳,优选膨胀石墨或石墨碳纳米纤维加入到阴极混合物中,从而导致阴极电阻率的急剧下降。 向包含氢氧化铜活性材料的阴极混合物中加入硫提高了性能。 通过添加膨胀石墨或石墨碳纳米纤维,阴极电阻的急剧下降使得电池适合用作具有良好容量的一次碱性电池。 石墨碳优选包含阴极重量的约3-10%。 碳纳米纤维的平均直径理想地小于500纳米,优选在约50和300纳米之间。

    Alkaline cell with improved cathode
    5.
    发明授权
    Alkaline cell with improved cathode 有权
    改善阴极的碱性电池

    公开(公告)号:US06730436B2

    公开(公告)日:2004-05-04

    申请号:US09941526

    申请日:2001-08-29

    IPC分类号: H01M448

    摘要: An alkaline cell having an anode comprising zinc, an alkaline electrolyte solution, a separator, and a cathode comprising copper iodate. The cathode preferably also includes a graphitic carbon to improve electrical conductivity. The graphtic carbon can comprise natural or synthetic graphites including expanded graphites and graphitic carbon fibers. Preferably, the graphitic carbon comprises graphitic carbon nanofibers. The carbon nanofibers desirably have a mean average diameter less than 500 nanometers. The cathode can also include sulfur in admixture with the copper iodate to improve cell performance.

    摘要翻译: 具有阳极的碱性电池,包含锌,碱性电解质溶液,隔膜和包含碘酸铜的阴极。 阴极优选还包括石墨碳以改善导电性。 石墨碳可以包括天然或合成石墨,包括膨胀石墨和石墨碳纤维。 优选地,石墨碳包括石墨碳纳米纤维。 碳纳米纤维希望平均直径小于500纳米。 阴极还可以包括与碘酸铜混合的硫,以改善电池性能。