Positive collector electrode for batteries with alkaline electrolytes
    2.
    发明授权
    Positive collector electrode for batteries with alkaline electrolytes 失效
    具有碱性电解质电池的正极集电极

    公开(公告)号:US4913989A

    公开(公告)日:1990-04-03

    申请号:US334916

    申请日:1989-04-07

    摘要: A positive collector electrode with an active material which comprises a double hydroxide of the general formula[M.sup.2+ (1-x)Fe.sup.3+ x(OH).sub.2 ].sup.x+ [(x/n)X.sup.n-, yH.sub.2 O].sup.x-in which the transient parameter is 0.05.ltoreq.x.ltoreq.0.4, preferably 0.2, M.sup.2+ is preferably Ni.sup.2+, and X.sup.n- is an anion species, shows a remarkable improvement in electrical behavior as compared to analogous double hydroxides in which X.sup.n- is SO.sub.4.sup.2-, NO.sub.3.sup.- or CO.sub.3.sup.2-. These electrodes, known as siderophile electrodes, exhibit resistance to iron contamination if X.sup.n- is formed at least partly by PO.sub.4.sup.3- or HPO.sub.4.sup.2-. This improvement is manifested in a constancy of the specific discharge capacity at a high level over many cycles during charge/discharge operation as compared to a Cd/Cd(OH).sub.2 electrode. The process for producing the electrode is also disclosed.

    摘要翻译: 具有活性物质的正极集电体电极包含通式[M2 +(1-x)Fe3 + x(OH)2] x + [(x / n)Xn-,yH2O] x-的双重氢氧化物,其中瞬态 参数为0.05≤x≤0.4,优选0.2,M2 +优选为Ni 2+,X n为阴离子物质,与其中Xn-为SO42-,NO3的类似双氢氧化物相比,其电性能显着改善 - 或CO32-。 如果Xn-至少部分地由PO43-或HPO42-形成,这些被称为副载体电极的电极表现出对铁污染的抗性。 与Cd / Cd(OH)2电极相比,在充电/放电操作期间的许多循环中,这种改善表现为在高电平下的比放电容量的恒定性。 还公开了制造电极的方法。

    Active material for rechargeable batteries
    4.
    发明授权
    Active material for rechargeable batteries 有权
    充电电池的活性物质

    公开(公告)号:US06958139B1

    公开(公告)日:2005-10-25

    申请号:US09718271

    申请日:2000-11-22

    摘要: A mixed metal hydroxide with brucite structure is described, which contains nickel hydroxide as its main component and at least one trivalent metal selected from the group consisting of Co, Fe, Al, Ga, In, Sc, Y and La in an amount of from about 12 to about 30 atom % relative to the sum of the metal components including Ni. The invention also relates to a rechargeable battery containing a mixed metal hydroxide according to the invention as an electrochemically active material as well as a secondary batter containing the mixed metal hydroxide. The invention also relates to a process for producing a mixed metal hydroxide having a brucite structure.

    摘要翻译: 描述了具有水镁石结构的混合金属氢氧化物,其以氢氧化镍为主要成分和至少一种选自Co,Fe,Al,Ga,In,Sc,Y和La中的至少一种三价金属,其量为 约12至约30原子%,相对于包括Ni的金属组分的总和。 本发明还涉及一种含有根据本发明的混合金属氢氧化物作为电化学活性材料的可再充电电池以及含有混合金属氢氧化物的二次电池。 本发明还涉及具有水镁石结构的混合金属氢氧化物的制造方法。