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1. 发明授权

US06524746B2 Hydrogen absorbing alloy powder and process for producing same 失效
公开(公告)号：US06524746B2
公开(公告)日：2003-02-25
申请号：US09833628
申请日：2001-04-13
申请人： Teruhiko Imoto , Yoshinori Matsuura , Nobuyuki Higashiyama , Mamoru Kimoto , Mitsuzo Nogami , Ikuo Yonezu , Koji Nishio
发明人： Teruhiko Imoto , Yoshinori Matsuura , Nobuyuki Higashiyama , Mamoru Kimoto , Mitsuzo Nogami , Ikuo Yonezu , Koji Nishio
IPC分类号： H01M462
CPC分类号： C01B3/0078 , B22F2998/00 , C01B3/0031 , H01M4/383 , Y02E60/327 , B22F1/0088
摘要： The invention provides a hydrogen absorbing alloy electrode obtained by the step P1 of preparing a hydrogen absorbing alloy powder containing cobalt and nickel, the step P2 of subjecting the surfaces of the alloy particles to a reduction treatment with high-temperature hydrogen by holding the powder in a high-temperature hydrogen atmosphere under the conditions of temperature, pressure and time sufficient to reduce oxides formed in a surface layer portion of each of the alloy particles, not melting the alloy particles and not permitting the alloy particles to absorb hydrogen, the step P3 of treating the resulting powder with an acid or alkali by immersing the powder in an acid or alkaline aqueous solution, followed by suction filtration, washing with water and drying, and the step P4 of applying the resulting power to an electrically conductive substrate and shaping the substrate in the form of the electrode. The electrode thus provided has higher activity than conventionally.

2. 发明授权

US06444362B2 Hydrogen absorbing alloy powder and process for producing same 失效
标题翻译：吸氢合金粉末及其制造方法
公开(公告)号：US06444362B2
公开(公告)日：2002-09-03
申请号：US09833632
申请日：2001-04-13
申请人： Teruhiko Imoto , Yoshinori Matsuura , Nobuyuki Higashiyama , Mamoru Kimoto , Mitsuzo Nogami , Ikuo Yonezu , Koji Nishio
发明人： Teruhiko Imoto , Yoshinori Matsuura , Nobuyuki Higashiyama , Mamoru Kimoto , Mitsuzo Nogami , Ikuo Yonezu , Koji Nishio
IPC分类号： H01M462
CPC分类号： C01B3/0078 , B22F2998/00 , C01B3/0031 , H01M4/383 , Y02E60/327 , B22F1/0088
摘要： The invention provides a hydrogen absorbing alloy electrode obtained by the step P1 of preparing a hydrogen absorbing alloy powder containing cobalt and nickel, the step P2 of subjecting the surfaces of the alloy particles to a reduction treatment with high-temperature hydrogen by holding the powder in a high-temperature hydrogen atmosphere under the conditions of temperature, pressure and time sufficient to reduce oxides formed in a surface layer portion of each of the alloy particles, not melting the alloy particles and not permitting the alloy particles to absorb hydrogen, the step P3 of treating the resulting powder with an acid or alkali by immersing the powder in an acid or alkaline aqueous solution, followed by suction filtration, washing with water and drying, and the step P4 of applying the resulting power to an electrically conductive substrate and shaping the substrate in the form of the electrode. The electrode thus provided has higher activity than conventionally.
摘要翻译：本发明提供一种通过制备含有钴和镍的吸氢合金粉末的步骤P1获得的吸氢合金电极，通过将粉末保持在高温氢气中来对合金颗粒的表面进行还原处理的步骤P2 在温度，压力和时间足以减少形成在每个合金颗粒的表层部分中的氧化物的条件下的高温氢气氛，不熔化合金颗粒并且不允许合金颗粒吸收氢，步骤P3 通过将粉末浸渍在酸或碱性水溶液中，然后抽吸过滤，用水洗涤并干燥，用酸或碱处理所得粉末，以及步骤P4将所得功率施加到导电基底上并使电极形式的衬底。由此提供的电极比以往更高的活性。

3. 发明授权

US06238822B1 Hydrogen storage alloy powder and method of manufacturing the same 有权
标题翻译：储氢合金粉及其制造方法
公开(公告)号：US06238822B1
公开(公告)日：2001-05-29
申请号：US09147482
申请日：1999-01-07
申请人： Teruhiko Imoto , Yoshinori Matsuura , Nobuyuki Higashiyama , Mamoru Kimoto , Mitsuzo Nogami , Ikuo Yonezu , Koji Nishio
发明人： Teruhiko Imoto , Yoshinori Matsuura , Nobuyuki Higashiyama , Mamoru Kimoto , Mitsuzo Nogami , Ikuo Yonezu , Koji Nishio
IPC分类号： H01M462
CPC分类号： C01B3/0078 , B22F2998/00 , C01B3/0031 , H01M4/383 , Y02E60/327 , B22F1/0088
摘要： The invention provides a hydrogen absorbing alloy electrode obtained by the step P1 of preparing a hydrogen absorbing alloy powder containing cobalt and nickel, the step P2 of subjecting the surfaces of the alloy particles to a reduction treatment with high-temperature hydrogen by holding the powder in a high-temperature hydrogen atmosphere under the conditions of temperature, pressure and time sufficient to reduce oxides formed in a surface layer portion of each of the alloy particles, not melting the alloy particles and not permitting the alloy particles to absorb hydrogen, the step P3 of treating the resulting powder with an acid or alkali by immersing the powder in an acid or alkaline aqueous solution, followed by suction filtration, washing with water and drying, and the step P4 of applying the resulting power to an electrically conductive substrate and shaping the substrate in the form of the electrode. The electrode thus provided has higher activity than conventionally.
摘要翻译：本发明提供一种通过制备含有钴和镍的吸氢合金粉末的步骤P1获得的吸氢合金电极，通过将粉末保持在高温氢气中来对合金颗粒的表面进行还原处理的步骤P2 在温度，压力和时间足以减少形成在每个合金颗粒的表层部分中的氧化物的条件下的高温氢气氛，不熔化合金颗粒并且不允许合金颗粒吸收氢，步骤P3 通过将粉末浸渍在酸或碱性水溶液中，然后抽吸过滤，用水洗涤并干燥，用酸或碱处理所得粉末，以及步骤P4将所得功率施加到导电基底上并使电极形式的衬底。由此提供的电极比以往更高的活性。

4. 发明授权

US5629000A Hydrogen-absorbing alloy electrode for metal hydride alkaline batteries and process for producing the same 失效
标题翻译：金属氢化物碱性电池用吸氢合金电极及其制造方法
公开(公告)号：US5629000A
公开(公告)日：1997-05-13
申请号：US562150
申请日：1995-11-22
申请人： Yoshinori Matsuura , Mitsuzo Nogami , Mamoru Kimoto , Nobuyuki Higashiyama , Yasushi Kuroda , Ikuo Yonezu , Koji Nishio , Toshihiko Saito
发明人： Yoshinori Matsuura , Mitsuzo Nogami , Mamoru Kimoto , Nobuyuki Higashiyama , Yasushi Kuroda , Ikuo Yonezu , Koji Nishio , Toshihiko Saito
IPC分类号： H01M4/24 , H01M4/38 , H01M4/02
CPC分类号： H01M4/383 , H01M4/242 , Y10S420/90 , Y10T29/49115
摘要： A hydrogen-absorbing alloy electrode for metal hydride alkaline batteries uses as hydrogen-absorbing material a powder of a rare earth element-nickel hydrogen-absorbing alloy obtained by pulverizing thin strips of said alloy prepared by single roll process and having an average thickness of 0.08 to 0.35 mm and a minimum size of crystal grains present in the roll-surface size of at least 0.2 .mu.m and a maximum size of crystal grains in the open-surface side of not more than 20 .mu.m. A process for producing the above electrode is also provided. The electrode can provide, when used as negative electrode, metal hydride alkaline batteries which are excellent in both high-rate discharge characteristics at an initial period of charge-discharge cycles and charge-discharge cycle characteristics.
摘要翻译：用于金属氢化物碱性电池的吸氢合金电极使用通过粉碎由单辊法制备的并且平均厚度为0.08的所述合金的薄带而获得的稀土元素 - 镍吸氢合金的粉末作为吸氢材料至0.35μm，在辊面尺寸中存在的晶粒的最小尺寸为0.2μm以上，开放面侧的晶粒的最大尺寸为20μm以下。还提供了制造上述电极的方法。当用作负极时，电极可以提供在充放电循环的初始阶段和充放电循环特性两种高速放电特性都优异的金属氢化物碱性电池。

5. 发明授权

US6110304A Hydrogen-absorbing alloy electrode for alkaline storage batteries 失效
标题翻译：碱性蓄电池用吸氢合金电极
公开(公告)号：US6110304A
公开(公告)日：2000-08-29
申请号：US749531
申请日：1996-11-15
申请人： Mitsuzo Nogami , Yoshinori Matsuura , Mamoru Kimoto , Nobuyuki Higashiyama , Mitsunori Tokuda , Takahiro Isono , Ikuo Yonezu , Koji Nishio
发明人： Mitsuzo Nogami , Yoshinori Matsuura , Mamoru Kimoto , Nobuyuki Higashiyama , Mitsunori Tokuda , Takahiro Isono , Ikuo Yonezu , Koji Nishio
IPC分类号： B22F9/04 , H01M4/38 , C22C19/03
CPC分类号： H01M4/383 , B22F9/04 , B22F2009/041 , Y10S420/90
摘要： The hydrogen-absorbing alloy electrode for alkaline storage batteries according to the invention comprises a hydrogen absorbing alloy powder prepared by grinding a strip of hydrogen absorbing alloy produced by solidifying a molten alloy by a roll method and satisfying the following relations:r/t.ltoreq.0.5 (1)60.ltoreq.t.ltoreq.180 (2)30.ltoreq.r.ltoreq.90 (3)wherein r represents the mean particle size (.mu.m) of the hydrogen absorbing alloy powder and t represents the mean thickness (.mu.m) of the strip absorbing alloy. The hydrogen absorbing alloy electrode of this invention features an improved high-rate discharge characteristic at low temperature.
摘要翻译：根据本发明的碱性蓄电池的吸氢合金电极包括通过研磨通过辊法固化熔融合金而制备的吸氢合金条而制备的吸氢合金粉末，并且满足以下关系：r / t < = 0.5（1）60

6. 发明授权

US06255018B1 Hydrogen storing alloy electrode and process for producing hydrogen storage alloy electrode 失效
标题翻译：储氢合金电极及储氢合金电极的制造方法
公开(公告)号：US06255018B1
公开(公告)日：2001-07-03
申请号：US09214111
申请日：1999-06-11
申请人： Tadashi Ise , Hiroshi Fukuda , Teruhiko Imoto , Kikuko Kato , Yasushi Kuroda , Nobuyuki Higashiyama , Yoshinori Matsuura , Mamoru Kimoto , Mitsuzou Nogami , Shin Fujitani , Ikuo Yonezu , Koji Nishio
发明人： Tadashi Ise , Hiroshi Fukuda , Teruhiko Imoto , Kikuko Kato , Yasushi Kuroda , Nobuyuki Higashiyama , Yoshinori Matsuura , Mamoru Kimoto , Mitsuzou Nogami , Shin Fujitani , Ikuo Yonezu , Koji Nishio
IPC分类号： H01M458
CPC分类号： H01M4/366 , H01M4/383 , Y10T29/49115
摘要： An object of the present invention is to provide an effective hydrogen-absorbing alloy activation process which can enhance the electrochemical activity of a hydrogen-absorbing alloy and to provide a hydrogen-absorbing alloy electrode which, when used in a battery, ensures an excellent initial inner pressure characteristic, low-temperature discharge characteristic, high-rate discharge characteristic and cycle characteristic. In accordance with the present invention, a hydrogen-absorbing alloy electrode production process is provided which comprises an alloy activation treatment step of immersing a hydrogen-absorbing alloy in a strong acid treatment solution containing metal ions and, in the course of the pH rise of the acid treatment solution, adding an alkali to the acid treatment solution to promote the pH rise of the acid treatment solution.
摘要翻译：本发明的目的是提供一种有效的吸氢合金活化方法，其可以提高吸氢合金的电化学活性，并提供一种吸氢合金电极，其在电池中使用时确保优异的初始内压特性，低温放电特性，高倍率放电特性和循环特性。根据本发明，提供了一种吸氢合金电极制造方法，其包括将吸氢合金浸入含有金属离子的强酸处理溶液中的合金活化处理步骤，并且在pH升高的过程中酸处理溶液，向酸处理溶液中加入碱，以促进酸处理溶液的pH升高。

7. 发明授权

US06068948A Hydrogen absorbing alloy electrode, method of fabricating hydrogen absorbing alloy electrode, and alkali secondary battery 失效
标题翻译：吸氢合金电极，制备吸氢合金电极的方法和碱二次电池
公开(公告)号：US06068948A
公开(公告)日：2000-05-30
申请号：US976659
申请日：1997-11-24
申请人： Teruhiko Imoto , Yoshinori Matsuura , Nobuyuki Higashiyama , Mamoru Kimoto , Mitsuzou Nogami , Ikuo Yonezu , Koji Nishio
发明人： Teruhiko Imoto , Yoshinori Matsuura , Nobuyuki Higashiyama , Mamoru Kimoto , Mitsuzou Nogami , Ikuo Yonezu , Koji Nishio
IPC分类号： H01M4/26 , H01M4/38 , H01M10/28
CPC分类号： H01M4/383 , Y10S420/90
摘要： In the present invention, a hydrogen absorbing alloy treated upon immersed in an acid solution containing at least a quinone compound, a hydrogen absorbing alloy immersed in water to which at least a quinone compound is added, or a hydrogen absorbing alloy treated upon being immersed in an acid solution containing at least a quinone compound and then immersed in water to which at least a quinone compound is added is used for a hydrogen absorbing alloy electrode, and the hydrogen absorbing alloy electrode is used as a negative electrode of an alkali secondary battery.
摘要翻译：在本发明中，将浸渍在至少含有醌化合物的酸溶液中浸渍的吸氢合金，至少添加有醌化合物的水中的吸氢合金或浸入将至少含有醌化合物的酸溶液浸渍在添加了至少一种醌化合物的水中，作为吸氢合金电极，使用吸氢合金电极作为碱性二次电池的负极。

8. 发明授权

US06322925B1 Metal hydride alkaline storage cell 有权
标题翻译：金属氢化物碱性蓄电池
公开(公告)号：US06322925B1
公开(公告)日：2001-11-27
申请号：US09141140
申请日：1998-08-27
申请人： Yoshinori Matsuura , Mitsuzo Nogami , Reizo Maeda , Katsuhiko Shinyama , Ikuo Yonezu , Koji Nishio
发明人： Yoshinori Matsuura , Mitsuzo Nogami , Reizo Maeda , Katsuhiko Shinyama , Ikuo Yonezu , Koji Nishio
IPC分类号： H01M1024
CPC分类号： H01M4/366 , H01M4/242 , H01M4/26 , H01M4/383 , H01M10/24 , H01M10/26 , H01M10/345 , Y02E60/124 , Y10S420/90 , Y10T29/49108 , Y10T29/49115
摘要： A metal hydride alkaline storage cell of the present invention comprises a positive electrode, a separator impregnated with an electrolyte, and a negative electrode comprising hydrogen-absorbing alloy powder. On the surface of the hydrogen-absorbing alloy powder, there is formed a layer of hydrogen-absorbing alloy oxide, and on the layer of the oxide, there is dotted a catalytic metal formed in a granular state by adding a substance soluble in the electrolyte. The substance is selected from the group consisting of a metal fluoride, a metal iodide, and a metal sulfide. The proportion of the metal fluoride, the metal iodide, or the metal sulfide in adding is restricted within the range of from 0.1 to 2.5 wt. % based on the weight of hydrogen-absorbing alloy powder. When the layer of the hydrogen-absorbing alloy oxide is formed on the surface of the hydrogen-absorbing alloy powder, the reaction area on the surface of the hydrogen-absorbing alloy is increased due to the roughness of the layer. Consequently, the catalytic action of the metal is fully utilized by dotting a catalytic metal on the alloy surface, and thereby the inner pressure characteristic high-rate charge characteristic) of a cell is improved.
摘要翻译：本发明的金属氢化物碱性蓄电池包括正电极，浸渍有电解质的隔膜和包含吸氢合金粉末的负极。在吸氢合金粉末的表面上形成有吸氢合金氧化物层，在氧化物层上，点燃形成颗粒状的催化金属，加入可溶于电解质的物质。该物质选自金属氟化物，金属碘化物和金属硫化物。金属氟化物，金属碘化物或金属硫化物的添加量的比例限制在0.1〜2.5重量％的范围内。基于吸氢合金粉末的重量％。当在吸氢合金粉末的表面上形成吸氢合金氧化物层时，由于该层的粗糙度，吸氢合金表面上的反应区域增加。因此，通过在合金表面上点燃催化金属，从而提高了电池的内部压力特性高速电荷特性，从而充分利用了金属的催化作用。

9. 发明授权

US06472101B1 Nickel-hydrogen storage battery 失效
标题翻译：镍氢蓄电池
公开(公告)号：US06472101B1
公开(公告)日：2002-10-29
申请号：US09509425
申请日：2000-03-28
申请人： Reizo Maeda , Katsuhiko Shinyama , Yoshinori Matsuura , Mitsuzo Nogami , Ikuo Yonezu , Koji Nishio
发明人： Reizo Maeda , Katsuhiko Shinyama , Yoshinori Matsuura , Mitsuzo Nogami , Ikuo Yonezu , Koji Nishio
IPC分类号： H01M458
CPC分类号： H01M4/62 , C01B3/0031 , C01B3/0047 , C01G53/006 , C01G53/04 , C01P2004/61 , C01P2006/40 , H01M4/242 , H01M4/32 , H01M4/366 , H01M4/383 , H01M4/52 , H01M10/345 , Y02E60/124 , Y02E60/327
摘要： In a nickel-metal hydride storage cell, deterioration of a cell capacity at high temperature and degradation of a cycle characteristic are suppressed. The nickel-metal hydride storage cell of the invention comprises in a cell case, a positive electrode comprising a positive electrode active material composed mainly of nickel hydroxide powder, a negative electrode comprising a negative electrode active material composed mainly of hydrogen-absorbing alloy powder, and a separator interposed between the positive and negative electrodes and impregnated with an electrolyte, the nickel-metal hydride storage cell characterized in that the negative electrode active material comprises a copper compound, the positive electrode comprises an aggregate of coated particles each in which a coating layer comprising a sodium-containing cobalt compound is formed on a surface of a nickel hydroxide particle, and the positive electrode active material is such that an oxide or hydroxide of one of bismuth, calcium, ytterbium, manganese, copper, scandium, and zirconium, is added to the aggregate of coated particles.
摘要翻译：在镍氢蓄电池中，抑制了高温下的电池容量的劣化和循环特性的劣化。本发明的镍氢蓄电池在电池的情况下，包括主要由氢氧化镍粉末组成的正极活性物质的正极，负极包含主要由吸氢合金粉末组成的负极活性物质，所述镍 - 金属氢化物蓄电池，其特征在于，所述负极活性物质包含铜化合物，所述正极包含涂覆颗粒的聚集体，每个涂覆颗粒中涂覆有涂层在氢氧化镍颗粒的表面上形成含有钠的钴化合物的层，正极活性物质是使铋，钙，镱，锰，铜，钪和锆之一的氧化物或氢氧化物，被添加到涂覆颗粒的聚集体中。

10. 发明授权

US06902588B2 Manufacturing method of metal hydride alkaline storage cell 失效
标题翻译：金属氢化物碱性蓄电池的制造方法
公开(公告)号：US06902588B2
公开(公告)日：2005-06-07
申请号：US10786091
申请日：2004-02-26
申请人： Yoshinori Matsuura , Mitsuzo Nogami , Reizo Maeda , Katsuhiko Shinyama , Ikuo Yonezu , Koji Nishio
发明人： Yoshinori Matsuura , Mitsuzo Nogami , Reizo Maeda , Katsuhiko Shinyama , Ikuo Yonezu , Koji Nishio
IPC分类号： H01M4/24 , H01M4/26 , H01M4/36 , H01M4/38 , H01M10/24 , H01M10/30 , H01M4/58
CPC分类号： H01M4/366 , H01M4/242 , H01M4/26 , H01M4/383 , H01M10/24 , H01M10/26 , H01M10/345 , Y02E60/124 , Y10S420/90 , Y10T29/49108 , Y10T29/49115
摘要： A method of manufacturing a metal hydride alkaline storage cell includes a first step of preparing a negative electrode by applying a paste containing hydrogen absorbing alloy powder onto a substrate; and a second step of placing the negative electrode and a positive electrode into a cell can with disposing separator therebetween, and thereafter pouring an electrolyte into the cell can. Into the paste or the electrolyte, a catalytic metal compound that has a proportion of 0.1 to 2.5 wt. % based on the weight of the hydrogen-absorbing alloy powder and that is soluble in the electrolyte is added. Consequently, the catalytic action of the metal is fully utilized by this method that dots a catalytic metal or metal compound on the alloy surface, and thereby the inner pressure characteristic (high-rate charge characteristic) of a cell is improved.
摘要翻译：一种制造金属氢化物碱性蓄电池的方法包括：通过将含有吸氢合金粉末的浆料涂覆在基材上来制备负极的第一步骤; 以及将负极和正极放置在电池罐中的第二步骤，在其间设置隔板，然后将电解液注入电池罐中。向糊状物或电解质中加入催化剂金属化合物，其比例为0.1〜2.5重量％加入基于吸氢合金粉末的重量且可溶于电解质的％。因此，通过该方法充分利用金属的催化作用，使合金表面上的催化金属或金属化合物点，从而提高电池的内部压力特性（高速率电荷特性）。

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