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    • 4. 发明授权
    • Aqueous nickel hydroxide paste of high flowability
    • 高流动性的氢氧化镍水溶胶糊
    • US4940553A
    • 1990-07-10
    • US357273
    • 1989-05-26
    • Klaus von BendaGabor Benczur-UrmossyGerhard Berger
    • Klaus von BendaGabor Benczur-UrmossyGerhard Berger
    • H01M4/26H01M4/28H01M4/32H01M4/52H01M4/62
    • H01M4/62H01M4/26H01M4/52
    • An aqueous nickel-hydroxide paste of high flowability for the vibration filling of foam-structure and fiber-structure electrode plaques has a content of about 30 to 50% by volume of nickel hydroxide, a maximum particle size of about 0.04 mm, a plastic viscosity of about 0.1 to 1 Pa.s and a yield value of between about 10 and 120 Pa, a pH of between about 9 and 12 and a content of about 0.5 to 5, in particular about 1 to 5, % by weight, based on the nickel hydroxide content, of a dispersant from the group comprising the water-soluble salts of polhphosphoric acids or di- and polyphosphonic acids and their derivatives. Very particularly suitable as a dispersant is 1-hydroxyethane-1, 1-diphosphonic acid in the form of its cobalt/alkali salt complex. This paste makes it possible to completely fill foam-structure and fiber-structure electrode plaques in one operation.
    • 用于泡沫结构和纤维结构电极板的振动填充的高流动性的氢氧化镍水溶液糊具有约30至50体积%的氢氧化镍,最大粒度约0.04mm,塑性粘度 约0.1至1Pa.s,并且产量值为约10至120Pa,pH为约9至12,含量为约0.5至5,特别是约1至5重量%,基于 分散剂的氢氧化镍含量,其包含磷酸或二膦酸及其衍生物的水溶性盐的组。 作为分散剂非常特别合适的是其钴/碱金属盐络合物形式的1-羟基乙烷-1,1-二膦酸。 该糊料可以在一次操作中完全填充泡沫结构和纤维结构电极板。