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1.发明授权Nickel electrode active material; a nickel electrode and a nickel alkali storage cell using such nickel electrode active material; and production methods of such material, electrode, and cell 失效镍电极活性物质; 镍电极和使用这种镍电极活性材料的镍碱存储电池; 和这种材料，电极和电池的生产方法
公开(公告)号：US5629111A
公开(公告)日：1997-05-13
申请号：US529980
申请日：1995-09-19
CPC分类号： H01M4/52
摘要： Fine-grained nickel electrode active material, each of which contributing to electrode reaction; production method of the fine-grained nickel electrode active material; and a nickel alkali storage cell of high capacity which is excellent in over discharge characteristics. In order to produce the fine-grained nickel electrode active material, fine-grained nickel hydroxide is precipitated by adding a given amount of alkali to solution in which at least a nickel compound is dissolved while the solution is stirred. Each of the fine-grained nickel hydroxide has pores with 20 vol % or more of a combined volume of the pores being composed of pores of diameter 60 .ANG. or greater. Next, a given amount of alkali is gradually added to suspension including the fine-grained nickel hydroxide and dissolved cobalt compound so that cobalt hydroxide is precipitated on the external surface of the fine-grained nickel hydroxide. The fine-grained nickel electrode active material is produced in the above mentioned way. Each of the fine-grained nickel electrode active material comprises a nickel hydroxide and cobalt oxide having distorted crystal structure and oxidation number higher than +2. The nickel hydroxide has pores whose diameters are 60 .ANG. or greater. And the volume of such pores amounts to 20 vol % or more of the combined volume of all of the pores.
摘要翻译： 细粒镍电极活性物质，各有助于电极反应; 细粒镍电极活性物质的制备方法; 以及高放电特性优异的高容量镍碱性电池。 为了生产细粒镍电极活性材料，在搅拌溶液的过程中，向至少溶解有镍化合物的溶液中加入规定量的碱，使细粒状氢氧化镍析出。 每种细粒度氢氧化镍具有孔直径为60以上的孔的组合体积的20vol％以上的孔。 接着，向包含细粒度氢氧化镍和溶解的钴化合物的悬浮液中逐渐加入给定量的碱，使得氢氧化钴在细粒状氢氧化镍的外表面析出。 以上述方式制造细粒镍电极活性物质。 每种细粒镍电极活性材料都包含氢氧化镍和氧化钴，晶体结构变形，氧化数高于+2。 氢氧化镍具有直径为60或更大的孔。 这些孔的体积相当于所有孔的组合体积的20体积％以上。
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2.发明授权
公开(公告)号：US5672447A
公开(公告)日：1997-09-30
申请号：US670170
申请日：1996-06-27
CPC分类号： H01M4/52 , C01G53/006 , C01G53/42 , H01M4/32 , C01P2002/54 , C01P2002/72 , C01P2004/84 , C01P2006/40 , H01M10/30 , H01M10/345 , Y10T29/49108
摘要： A alkali storage cell includes a non-sintered type nickel electrode which includes a highly efficient nickel hydroxide active material and which causes no capacity decrease during an over-discharge operation. The nickel electrode contains an active material composed of nickel hydroxide, a solid solution of at least one of zinc, cadmium, magnesium, and calcium which are added to the nickel hydroxide, and cobalt compound layers which are formed over the surfaces of particles of the nickel hydroxide. The cobalt compound layers have an oxidation number of larger than 2 and a disordered crystal structure. Such an active material can be manufactured by mixing nickel hydroxide powder containing a solid solution of at least one of zinc, cadmium, magnesium, and calcium with either metallic cobalt or a cobalt compound, and subjecting the mixture to heat treatment in the presence of oxygen and alkali. Another production method is to precipitate a cobalt compound over the surfaces of the nickel hydroxide powder containing a solid solution of at least one of zinc, cadmium, magnesium, and calcium so as to form cobalt compound layers, before subjecting it to the heat treatment in the same conditions.
摘要翻译： 碱性蓄电池包括非烧结型镍电极，其包括高效氢氧化镍活性材料，并且在过放电操作期间不引起容量减小。 镍电极含有由氢氧化镍组成的活性物质，添加到氢氧化镍中的锌，镉，镁和钙中的至少一种的固溶体，以及形成在氧化镍颗粒表面上的钴化合物层 氢氧化镍。 钴化合物层具有大于2的氧化数和无序的晶体结构。 可以通过将含有锌，镉，镁和钙中的至少一种的固溶体的氢氧化镍粉末与金属钴或钴化合物混合并在氧气存在下进行热处理来制造这种活性物质 和碱。 另一种制造方法是在含有锌，镉，镁和钙中的至少一种的固溶体的氢氧化镍粉末的表面上析出钴化合物，以形成钴化合物层，然后在其中进行热处理 条件相同。
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3.发明授权公开(公告)号：US06632568B1
公开(公告)日：2003-10-14
申请号：US08929253
申请日：1997-09-15
IPC分类号： H01M452
CPC分类号： H01M4/52 , C01G53/006 , C01G53/42 , C01P2002/54 , C01P2002/72 , C01P2004/84 , C01P2006/40 , H01M4/32 , H01M10/30 , H01M10/345 , Y10T29/49108
摘要： A alkali storage cell includes a non-sintered type nickel electrode which includes a highly efficient nickel hydroxide active material and which causes no capacity decrease during an over-discharge operation. The nickel electrode contains an active material composed of nickel hydroxide, a solid solution of at least one of zinc, cadmium, magnesium, and calcium which are added to the nickel hydroxide, and cobalt compound layers which are formed over the surfaces of particles of the nickel hydroxide. The cobalt compound layers have an oxidation number of larger than 2 and a disordered crystal structure. Such an active material can be manufactured by mixing nickel hydroxide powder containing a solid solution of at least one of zinc, cadmium, magnesium, and calcium with either metallic cobalt or a cobalt compound, and subjecting the mixture to heat treatment in the presence of oxygen and alkali. Another production method is to precipitate a cobalt compound over the surfaces of the nickel hydroxide powder containing a solid solution of at least one of zinc, cadmium, magnesium, and calcium so as to form cobalt compound layers, before subjecting it to the heat treatment in the same conditions.
摘要翻译： 碱性蓄电池包括非烧结型镍电极，其包括高效氢氧化镍活性材料，并且在过放电操作期间不引起容量减小。 镍电极含有由氢氧化镍组成的活性物质，添加到氢氧化镍中的锌，镉，镁和钙中的至少一种的固溶体，以及形成在氧化镍颗粒表面上的钴化合物层 氢氧化镍。 钴化合物层具有大于2的氧化数和无序的晶体结构。 可以通过将含有锌，镉，镁和钙中的至少一种的固溶体的氢氧化镍粉末与金属钴或钴化合物混合并在氧气存在下进行热处理来制造这种活性物质 和碱。 另一种制造方法是在含有锌，镉，镁和钙中的至少一种的固溶体的氢氧化镍粉末的表面上析出钴化合物，以形成钴化合物层，然后在其中进行热处理 相同的条件。
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公开(公告)号：US5688616A
公开(公告)日：1997-11-18
申请号：US671199
申请日：1996-06-27
CPC分类号： H01M4/52 , C01G53/006 , C01G53/42 , H01M4/32 , C01P2002/54 , C01P2002/72 , C01P2004/84 , C01P2006/40 , H01M10/30 , H01M10/345 , Y10T29/49108
摘要： A alkali storage cell includes a non-sintered type nickel electrode which includes a highly efficient nickel hydroxide active material and which causes no capacity decrease during an over-discharge operation. The nickel electrode contains an active material composed of nickel hydroxide, a solid solution of at least one of zinc, cadmium, magnesium, and calcium which are added to the nickel hydroxide, and cobalt compound layers which are formed over the surfaces of particles of the nickel hydroxide. The cobalt compound layers have an oxidation number of larger than 2 and a disordered crystal structure. Such an active material can be manufactured by mixing nickel hydroxide powder containing a solid solution of at least one of zinc, cadmium, magnesium, and calcium with either metallic cobalt or a cobalt compound, and subjecting the mixture to heat treatment in the presence of oxygen and alkali. Another production method is to precipitate a cobalt compound over the surfaces of the nickel hydroxide powder containing a solid solution of at least one of zinc, cadmium, magnesium, and calcium so as to form cobalt compound layers, before subjecting it to the heat treatment in the same conditions.
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5.发明授权Nickel active material for use in alkali storage cells and its manufactuiring method 失效用于碱性储存电池的镍活性材料及其制造方法
公开(公告)号：US5691086A
公开(公告)日：1997-11-25
申请号：US598598
申请日：1996-02-12
CPC分类号： H01M4/28 , H01M4/32 , H01M4/52 , H01M10/30 , H01M10/345 , Y02E60/124
摘要： A nickel active material for an alkali storage cell whose surface is covered with a cobalt compound, wherein the diffusion and permeation into the nickel hydroxide mother particles of cobalt compound during excessive discharging, which act to reduce the active material efficiency and the excessive discharging characteristics, are prevented. This is achieved by having a covering layer, including one or more of the following metal compounds; an aluminum compound, a magnesium compound, an indium compound and a zinc compound, in addition to a cobalt compound, formed on the surface of a mother particle of nickel hydroxide, and by heat treating the covered mother particles in the presence of alkali and oxygen so as to convert the cobalt compound into a compound of cobalt where an oxidization number of cobalt is greater than 2.
摘要翻译： 一种表面被钴化合物覆盖的碱性蓄电池用镍活性物质，其特征在于，在过量放电中扩散渗透到钴化合物的氢氧化镍母粒中，其作用是降低活性物质效率和过度的放电特性， 被阻止 这通过具有包括一种或多种以下金属化合物的覆盖层来实现; 铝化合物，镁化合物，铟化合物和锌化合物，除了形成在氢氧化镍母体表面上的钴化合物之外，还在碱和氧的存在下热处理被覆盖的母体颗粒 以便将钴化合物转化为钴的化合物，其中钴的氧化数大于2。
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6.发明授权Manufacturing method of an active material suitable for non-sintered nickel electrodes for use in alkaline storage cells 失效适用于碱性蓄电池用的非烧结镍电极的活性材料的制造方法
公开(公告)号：US5702762A
公开(公告)日：1997-12-30
申请号：US665703
申请日：1996-06-18
申请人： Yoshitaka Baba , Motoo Tadokoro , Akifumi Yamawaki
发明人： Yoshitaka Baba , Motoo Tadokoro , Akifumi Yamawaki
摘要： In a method of manufacturing a nickel active material, nickel hydroxide particles coated with cobalt hydroxide are put on the mesh disk 4 of the fluidized granulator 1. Then, hot air is continuously supplied from outside through the hot air inlet 5, while air inside the fluidized granulator 5 is continuously emitted through the air outlet 8. At the same time, the nickel hydroxide particles are stirred with the stirring fan 3 and further dispersed by a hot air current. In this condition, an alkali aqueous solution is sprayed on the nickel hydroxide particles through the spray nozzle 7 by the pump 9. After the spray, the nickel hydroxide particles are further stirred in hot air so as to complete an alkali heat treatment.
摘要翻译： 在制造镍活性物质的方法中，将氢氧化钴颗粒涂覆在流化造粒机1的网盘4上。然后，从外部通过热空气入口5连续地供给热空气，同时， 流化造粒机5通过出气口8连续排出。同时，氢氧化镍颗粒与搅拌风机3一起搅拌并进一步通过热气流分散。 在这种情况下，通过泵9将碱性水溶液通过喷嘴7喷射到氢氧化镍颗粒上。在喷雾之后，将氢氧化镍颗粒在热空气中进一步搅拌，以完成碱热处理。
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公开(公告)号：US06605389B2
公开(公告)日：2003-08-12
申请号：US09812696
申请日：2001-03-21
申请人： Yoshitaka Baba , Motoo Tadokoro
发明人： Yoshitaka Baba , Motoo Tadokoro
IPC分类号： H01M432
CPC分类号： H01M4/366 , C01G51/04 , C01G53/00 , C01G53/04 , C01P2004/54 , C01P2004/84 , C01P2006/40 , H01M4/32 , H01M4/52 , H01M10/30 , Y02E60/124 , Y02P70/54 , Y10T29/49108
摘要： An alkaline storage battery includes a positive electrode active material containing nickel hydroxide as a main component. A part of the surface of the nickel hydroxide is unevenly covered with a cobalt compound having an average oxidation number of larger than +2 and containing alkaline cations. Since only a part of the surface of the nickel hydroxide is covered with the cobalt compound, the nickel hydroxide not covered with the cobalt compound is brought into direct contact with the electrolyte, thus improving the high rate discharging characteristic. Since a part of the surface of the nickel hydroxide is covered with the high-order cobalt compound containing alkaline cations, the high-order cobalt compound with high conductivity produces a highly conductive network within the positive electrode so that the rate of using the active material is improved. In this configuration, the alkaline storage battery with high capacity and excellent high rate discharging characteristic can be provided by using a nickel hydroxide active material which permits nickel hydroxide to be brought into direct contact with an electrolyte regardless with high order cobalt oxide on the surface of nickel hydroxide.
摘要翻译： 碱性蓄电池包括以氢氧化镍为主要成分的正极活性物质。 氢氧化镍表面的一部分不均匀地被平均氧化数大于+2并含有碱性阳离子的钴化合物覆盖。 由于只有一部分氢氧化镍的表面被钴化合物覆盖，所以未被钴化合物覆盖的氢氧化镍与电解质直接接触，从而提高了高放电特性。 由于氢氧化镍表面的一部分被含有碱性阳离子的高级钴化合物覆盖，所以高导电性的高级钴化合物在正极内产生高导电性网络，使得使用活性物质的速率 改进了 在这种结构中，可以通过使用氢氧化镍活性物质来提供具有高容量和优异的高倍率放电特性的碱性蓄电池，氢氧化镍活性物质使得氢氧化镍与电解质直接接触，而不管高阶氧化钴在表面上 氢氧化镍。
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8.发明授权公开(公告)号：US06171728B2
公开(公告)日：2001-01-09
申请号：US09110861
申请日：1998-07-07
申请人： Yoshitaka Baba , Motoo Tadokoro , Takayuki Yano
发明人： Yoshitaka Baba , Motoo Tadokoro , Takayuki Yano
IPC分类号： H01M452
CPC分类号： H01M4/52 , H01M4/32 , Y10T29/49115
摘要： A nickel electrode for an alkaline storage cell manufactured by the steps of precipitating cobalt hydroxide on the surface of a first nickel active material essentially composed of nickel hydroxide, subjecting the first nickel active material to heat treatment under the presence of an alkaline solution and oxygen to that the cobalt hydroxide precipitated on the first nickel active material is disordered to its crystal structure and is formed in a higher order cobalt compound containing alkaline cation, and mixing the first nickel active material subjected to the alkali heat treatment with a second nickel hydroxide active material essentially composed of nickel hydroxide without forming any conductive substance of lower in dissolubility to the alkaline solution.
摘要翻译： 一种碱性蓄电池用镍电极，其特征在于，在基本上由氢氧化镍构成的第一镍活性物质的表面析出氢氧化钴，在碱溶液和氧气的存在下进行第一镍活性物质的热处理， 沉淀在第一镍活性材料上的氢氧化钴无定形为其晶体结构，并且形成为含有碱性阳离子的较高级的钴化合物，并将进行碱热处理的第一镍活性材料与第二氢氧化镍活性物质 基本上由氢氧化镍组成，而不形成对碱性溶液具有较低溶解度的任何导电物质。
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9.发明授权Nickel hydroxide active material for use in alkaline storage cell and manufacturing method of the same 失效用于碱性蓄电池的氢氧化镍活性物质及其制造方法公开(公告)号：US06203945B1
公开(公告)日：2001-03-20
申请号：US09109070
申请日：1998-07-02
申请人： Yoshitaka Baba , Motoo Tadokoro , Takayuki Yano
发明人： Yoshitaka Baba , Motoo Tadokoro , Takayuki Yano
IPC分类号： H01M432
CPC分类号： H01M4/52
摘要： A nickel hydroxide active material for use in an alkaline storage cell, the active material being essentially composed of nickel hydroxide particles covered with a cobalt compound adhered to their surfaces, wherein the cobalt compound is disordered in a crystal structure and formed in a higher order state containing alkali cation, and wherein the nickel hydroxide is in the form of a higher order nickel compound having an average oxidation value of 2.15 to 2.40.
摘要翻译： 一种用于碱性蓄电池的氢氧化镍活性物质，所述活性物质基本上由附着在其表面上的钴化合物覆盖的氢氧化镍颗粒组成，其中所述钴化合物在晶体结构中无序并形成为高级态 含有碱金属阳离子，其中氢氧化镍为平均氧化值为2.15〜2.40的高级镍化合物的形式。
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公开(公告)号：US06602640B1
公开(公告)日：2003-08-05
申请号：US09669573
申请日：2000-09-26
申请人： Masaru Kihara , Motoo Tadokoro , Yoshitaka Baba
发明人： Masaru Kihara , Motoo Tadokoro , Yoshitaka Baba
IPC分类号： H01M1024
摘要： An alkaline storage battery comprising a positive electrode active material mainly composed of nickel hydroxide, characterized in that the nickel hydroxide is a higher order nickel hydroxide covered with a cobalt compound on the surface thereof or in the vicinity thereof and the higher order nickel hydroxide is provided with at least one compound selected from the group consisting of yttrium compound, erbium compound and ytterbium compound on the surface thereof or in the vicinity
摘要翻译： 一种碱性蓄电池，其特征在于，包括主要由氢氧化镍组成的正极活性物质，其特征在于，所述氢氧化镍是在其表面或其附近被钴化合物覆盖的高级氢氧化镍，提供高级氢氧化镍 与选自钇化合物，铒化合物和镱化合物的至少一种化合物在其表面或附近
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