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    Process for converting nickel to nickel sulfate
    1.
    发明授权
    Process for converting nickel to nickel sulfate 有权
    将镍转化成硫酸镍的方法

    公开(公告)号：US07364717B2

    公开(公告)日：2008-04-29

    申请号：US10727413

    申请日：2003-12-04

    申请人： Cristian Fierro ,  Gabriel E. Benet ,  Avram Zallen ,  Tim Hicks ,  Michael A. Fetcenko

    发明人： Cristian Fierro ,  Gabriel E. Benet ,  Avram Zallen ,  Tim Hicks ,  Michael A. Fetcenko

    IPC分类号： C01B17/96

    CPC分类号： C01G53/04 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/11 ,  C01P2006/40

    摘要： A preferred embodiment of the present invention provides a process for making nickel sulfate by converting nickel metal into nickel sulfate, which may be converted to nickel hydroxide. Nickel metal is dissolved in sulfuric acid and oxygen containing gas is introduced to produce a nickel sulfate solution having nickel sulfate and water as illustrated in the following chemical equation. Ni+H2SO4+½O2→NiSO4+H2O The nickel sulfate is filtered and sulfuric acid is continually added to maintain stoichiometry within a reactor until the nickel metal is dissolved. The sulfuric acid, oxygen containing gas and nickel metal may be heated to facilitate the desired reaction. Then, the nickel sulfate may be utilized to produce nickel hydroxide.

    摘要翻译： 本发明的优选实施方案提供了一种通过将镍金属转化成硫酸镍制备硫酸镍的方法，其可以转化为氢氧化镍。 将镍金属溶解在硫酸中，并引入含氧气体以产生具有硫酸镍和水的硫酸镍溶液，如以下化学方程所示。 <？in-line-formula description =“In-line Formulas”end =“lead”？> Ni + H 2 SO 2 4 + 1/2/2 硫酸镍是在线式公式描述=“在线公式”中的结尾=“尾”→硫酸镍是 过滤并连续加入硫酸以保持反应器内的化学计量，直到镍金属溶解。 可以加热硫酸，含氧气体和镍金属以促进所需的反应。 然后，可以使用硫酸镍制造氢氧化镍。

    Method of making a nickel hydroxide material
    4.
    发明授权
    Method of making a nickel hydroxide material 有权
    制造氢氧化镍材料的方法

    公开(公告)号：US06432580B1

    公开(公告)日：2002-08-13

    申请号：US09661000

    申请日：2000-09-13

    申请人： Cristian Fierro ,  Michael A. Fetcenko ,  Beth Sommers ,  Avram Zallen

    发明人： Cristian Fierro ,  Michael A. Fetcenko ,  Beth Sommers ,  Avram Zallen

    IPC分类号： H01M432

    CPC分类号： C01G53/04 ,  C01G53/00 ,  C01G53/006 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/02 ,  H01M4/32 ,  H01M4/52 ,  H01M10/30 ,  H01M10/345 ,  H01M2004/021

    摘要： A process for making a nickel hydroxide material without the necessity of a preamine reactor. The process includes the steps of providing a metal and forming the metal into an active positive electrode material. The process for making a nickel hydroxide material may also include one or more blending steps. The step for forming may include concurrently combining the metal with ammonium ions and hydroxide ions. The step for forming may also include a continuously stirred precipitation reaction of metal ions. In a preferred aspect of the process hereof, the metal may be a secondary nickel source, such as a spent or virgin electrolyte solution from a nickel electrorefining process, nickel electroless plating process or nickel electroplating process.

    摘要翻译： 制备氢氧化镍材料而不需要预反应器的方法。 该方法包括提供金属并将金属形成活性正极材料的步骤。 制备氢氧化镍材料的方法还可以包括一个或多个共混步骤。 形成步骤可以包括同时将金属与铵离子和氢氧根离子组合。 形成步骤还可以包括金属离子的连续搅拌沉淀反应。 在本方法的优选方面，金属可以是二次镍源，例如来自镍电解精炼工艺，镍化学镀工艺或镍电镀工艺的废旧电解液。

    Nickel metal hydride battery design
    5.
    发明授权
    Nickel metal hydride battery design 有权
    镍氢电池设计

    公开(公告)号：US07261970B2

    公开(公告)日：2007-08-28

    申请号：US10887434

    申请日：2004-07-08

    申请人： Kwo Young ,  Cristian Fierro ,  Benjamin Reichman ,  Michael A. Fetcenko ,  John Koch ,  Avram Zallen

    发明人： Kwo Young ,  Cristian Fierro ,  Benjamin Reichman ,  Michael A. Fetcenko ,  John Koch ,  Avram Zallen

    IPC分类号： H01M4/58 ,  H01M4/62

    CPC分类号： H01M10/345 ,  H01M4/0438 ,  H01M4/0445 ,  H01M4/0492 ,  H01M4/242 ,  H01M4/32 ,  H01M4/366 ,  H01M4/383 ,  H01M4/52 ,  H01M4/62 ,  H01M4/621 ,  H01M10/4235 ,  H01M10/446 ,  H01M10/52 ,  H01M2004/027

    摘要： The present invention relates to rechargeable nickel metal hydride batteries and methods for making the same. More particularly, the present invention relates to rechargeable nickel metal hydride batteries having a precharge in the negative electrode sufficient for oxidation prevention in the negative electrode. The present invention discloses a nickel metal hydride battery, wherein the precharge of the negative electrode may be supplied by a variety of sources. The positive active material of the positive electrode may have positive active particles, such as nickel hydroxide, having a precursor coating that incorporates cobalt material capable of forming a conductive network. Sources other than cobalt-containing materials in the positive electrode include hydrogen gas provided directly to the negative active material, nickel aluminum mixed with the negative active material, the etching of the negative active material with an alkaline solution and borohydride chemically charging the negative active material. Preferably, a majority of the precharge of the negative electrode is supplied by sources other than cobalt-containing materials in the positive electrode.

    摘要翻译： 本发明涉及可再充电镍氢电池及其制造方法。 更具体地说，本发明涉及在负极中具有足以在负极中进行氧化防止的预充电的可充电镍金属氢化物电池。 本发明公开了一种镍金属氢化物电池，其中负极的预充电可以由各种源提供。 正极的正极活性材料可以具有正的活性颗粒，例如氢氧化镍，其具有引入可形成导电网络的钴材料的前体涂层。 来自正极中的含钴材料以外的源包括直接设置在负极活性物质上的氢气，与负极活性物质混合的镍铝，用碱性溶液腐蚀负极活性物质和化学充电负极活性物质的硼氢化物 。 优选地，负极的大部分预充电由正极中的含钴材料以外的源供给。

    Enhanced nickel hydroxide positive electrode materials for alkaline rechargeable electrochemical cells
    8.
    发明授权
    Enhanced nickel hydroxide positive electrode materials for alkaline rechargeable electrochemical cells 失效
    用于碱性可充电电化学电池的增强型氢氧化镍正极材料

    公开(公告)号：US5523182A

    公开(公告)日：1996-06-04

    申请号：US333457

    申请日：1994-11-02

    申请人： Stanford R. Ovshinsky ,  Michael A. Fetcenko ,  Cristian Fierro ,  Paul R. Gifford ,  Dennis A. Corrigan ,  Peter Benson ,  Franklin J. Martin

    发明人： Stanford R. Ovshinsky ,  Michael A. Fetcenko ,  Cristian Fierro ,  Paul R. Gifford ,  Dennis A. Corrigan ,  Peter Benson ,  Franklin J. Martin

    IPC分类号： H01M4/26 ,  H01M4/28 ,  H01M4/32 ,  H01M4/52 ,  H01M4/62 ,  H01M4/80 ,  H01M10/26 ,  H01M10/34

    CPC分类号： H01M4/52 ,  H01M4/32 ,  H01M4/366 ,  H01M4/624 ,  H01M10/30 ,  H01M2300/0014

    摘要： A positive electrode material for use in electrochemical cells. This material comprises particles of positive electrode material including at least one electrochemically active hydroxide and a substantially continuous, uniform, encapsulant layer surrounding the particles of positive electrode material. The encapsulant layer is formed from a material which, upon oxidation during processing or during charging of the electrode, is convertible to a highly conductive form, and which, upon subsequent discharge of the electrode, does not revert to its previous form. Preferably, the electrochemically active hydroxide includes at least nickel hydroxide. The encapsulant layer is preferably formed from at least cobalt hydroxide or cobalt oxyhydroxide. This layer is formed on the particles of positive electrode material by precipitation from a cobalt salt solution, which can be a cobalt sulfate solution. Also disclosed are positive electrodes including the material and a precipitation method of forming the material.

    摘要翻译： 用于电化学电池的正极材料。 该材料包括正极材料颗粒，其包括至少一个电化学活性氢氧化物和围绕正极材料颗粒的基本上连续，均匀的包封层。 密封剂层由材料形成，该材料在处理过程中或在电极充电期间被氧化，可转换为高导电形式，并且在随后的电极放电时，其不会恢复到其先前的形式。 优选地，电化学活性氢氧化物至少包括氢氧化镍。 密封剂层优选由至少氢氧化钴或羟基氧化钴形成。 该层通过从可以是硫酸钴溶液的钴盐溶液中沉淀而形成在正极材料颗粒上。 还公开了包括材料的正电极和形成材料的沉淀方法。