公开(公告)号：US6068713A

公开(公告)日：2000-05-30

申请号：US868834

申请日：1997-06-09

申请人： Masaharu Yamaguchi ,  Haruyuki Inui ,  Koichi Sato ,  Koichi Nishimura ,  Shin Fujitani ,  Ikuo Yonezu ,  Koji Nishio

发明人： Masaharu Yamaguchi ,  Haruyuki Inui ,  Koichi Sato ,  Koichi Nishimura ,  Shin Fujitani ,  Ikuo Yonezu ,  Koji Nishio

IPC分类号： C22C19/00 ,  B22F5/00 ,  C01B3/00 ,  C22C1/00 ,  C22C1/04 ,  H01M4/38 ,  B22F9/04

CPC分类号： C01B3/0057 ,  C01B3/0068 ,  C01B3/0078 ,  C22C1/0491 ,  B22F2009/041 ,  B22F2998/10 ,  Y02E60/327 ,  Y10S420/90

摘要： A hydrogen absorbing alloy is provided which is increased in reaction rate without being restricted in composition and which is unimpaired in the reversibility of reaction and hydrogen absorption-desorption cycle life characteristics. The alloy contains the phase of an intermetallic compound of the composition A5T19 wherein A is at least one element selected from the group consisting of La, Ce, Pr, Sm, Nd, Mm (misch metal), Y, Gd, Ca, Mg, Ti, Zr and Hf, and T is at least one element selected from the group consisting of B, Bi, Al, Si, Cr, V, Mn, Fe, Co, Ni, Cu, Zn, Sn and Sb. The alloy is produced by mixing together an alloy containing an AT3 phase and an alloy containing an AT4 phase, mechanically alloying the mixture to form the phase of intermetallic compound of the composition A5T19 in addition to the AT3 and AT4 phases, and subsequently mixing together or mechanically alloying the resulting alloy and an alloy containing AT5 phase.

摘要翻译： 提供了一种吸氢合金，其反应速率增加而不受组成的限制，并且在反应的可逆性和氢吸收 - 解吸循环寿命特性中不受损害。 该合金含有组合物A5T19的金属间化合物的相，其中A为选自La，Ce，Pr，Sm，Nd，Mm（混合稀土金属），Y，Gd，Ca，Mg中的至少一种元素， Ti，Zr和Hf，T是选自B，Bi，Al，Si，Cr，V，Mn，Fe，Co，Ni，Cu，Zn，Sn和Sb中的至少一种元素。 该合金通过将含有AT3相的合金和含有AT4相的合金混合在一起而制成，除了AT3和AT4相之外，机械合金化混合物以形成组合物A5T19的金属间化合物的相，然后混合在一起或 对所得合金和含有AT5相的合金进行机械合金化。

公开(公告)号：US5728483A

公开(公告)日：1998-03-17

申请号：US822065

申请日：1997-03-24

申请人： Shin Fujitani ,  Koichi Nishimura ,  Koichi Sato ,  Ikuo Yonezu ,  Koji Nishio

发明人： Shin Fujitani ,  Koichi Nishimura ,  Koichi Sato ,  Ikuo Yonezu ,  Koji Nishio

IPC分类号： F17C11/00 ,  F02M21/02 ,  F17C13/00 ,  H01M8/04 ,  H01M8/06 ,  H01M8/14

CPC分类号： H01M8/065 ,  H01M2008/147 ,  H01M2300/0008 ,  H01M2300/0051 ,  H01M2300/0082 ,  H01M8/04029 ,  Y02E60/321 ,  Y02E60/526

摘要： The invention provides a system for storing and utilizing hydrogen comprising a liquefied hydrogen storage container 1 to be filled with liquefied hydrogen 2, a fuel cell 5 operable by a supply of hydrogen gas and serving as a hydrogen utilizing device, hydrogen gas piping 37 interconnecting the storage container 1 and the fuel cell 5, a hydrogen absorbing alloy container 3 connected to an intermediate portion of the piping 37 and having a hydrogen absorbing alloy 4 accommodated therein, a heat accumulator 6 having a heat storage medium 7 accommodated therein, piping 25 and a pump 22 for circulating the heat storage medium 7 between the fuel cell 5 and the heat accumulator 6, and piping 24 and a pump 21 for circulating the heat storage medium between the alloy container 3 and the heat accumulator 6.

摘要翻译： 本发明提供了一种用于储存和利用氢的系统，其包括要充满液化氢的液化氢储存容器1，可通过氢气供应操作并用作氢利用装置的燃料电池5，将氢气管37与 储存容器1和燃料电池5，与管道37的中间部分连接并且容纳有吸氢合金4的储氢合金容器3，容纳有储热介质7的蓄热器6，配管25和 用于使蓄热介质7在燃料电池5和蓄热器6之间循环的泵22，以及用于使蓄热介质在合金容器3和蓄热器6之间循环的配管24和泵21。

公开(公告)号：US5987895A

公开(公告)日：1999-11-23

申请号：US96386

申请日：1998-06-12

申请人： Kouichi Nishimura ,  Kouichi Satoh ,  Shin Fujitani ,  Ikuo Yonezu ,  Koji Nishio

发明人： Kouichi Nishimura ,  Kouichi Satoh ,  Shin Fujitani ,  Ikuo Yonezu ,  Koji Nishio

IPC分类号： F17C11/00

CPC分类号： C01B3/0005 ,  F17C11/005 ,  Y02E60/321 ,  Y02E60/324 ,  Y10S123/12

摘要： Molded bodies of a hydrogen absorbing alloy accommodated in a hydrogen storage container are made readily replaceable to ensure stabilized supply of hydrogen gas. When exhibiting an impaired hydrogen absorbing-desorbing capacity, the molded bodies can be easily replaced by new molded bodies, whereby a specified hydrogen absorbing-desorbing capacity can be maintained. The hydrogen gas released from the storage container is partly utilized to heat the container and thereby maintain the alloy at a predetermined temperature, consequently assuring a device, such as a fuel cell, of stabilized supply of hydrogen from the container.

摘要翻译： 容纳在储氢容器中的吸氢合金的成型体容易替换，以确保稳定的氢气供应。 当表现出吸收解吸能力受损时，可以容易地用新的成型体代替成型体，由此能够保持规定的吸氢解吸能力。 从储存容器释放的氢气部分地用于加热容器，从而将合金保持在预定温度，从而确保诸如燃料电池的装置从容器稳定地供应氢气。

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。

公开(公告)号：US5797269A

公开(公告)日：1998-08-25

申请号：US804334

申请日：1997-02-21

申请人： Kouichi Nishimura ,  Kouichi Satoh ,  Shin Fujitani ,  Ikuo Yonezu ,  Koji Nishio

发明人： Kouichi Nishimura ,  Kouichi Satoh ,  Shin Fujitani ,  Ikuo Yonezu ,  Koji Nishio

IPC分类号： F17C11/00

CPC分类号： C01B3/0005 ,  F17C11/005 ,  Y02E60/321 ,  Y02E60/324 ,  Y10S123/12

摘要： Molded bodies of a hydrogen absorbing alloy accommodated in a hydrogen storage container are made readily replaceable to ensure stabilized supply of hydrogen gas. When exhibiting an impaired hydrogen absorbing-desorbing capacity, the molded bodies can be easily replaced by new molded bodies, whereby a specified hydrogen absorbing-desorbing capacity can be maintained. The hydrogen gas released from the storage container is partly utilized to heat the container and thereby maintain the alloy at a predetermined temperature, consequently assuring a device, such as a fuel cell, of stabilized supply of hydrogen from the container.

公开(公告)号：US6077626A

公开(公告)日：2000-06-20

申请号：US284860

申请日：1999-04-22

申请人： Mitsuzou Nogami ,  Mutsumi Yano ,  Mitsunori Tokuda ,  Syuichi Suzuki ,  Shin Fujitani ,  Reizo Maeda ,  Ikuo Yonezu ,  Koji Nishio

发明人： Mitsuzou Nogami ,  Mutsumi Yano ,  Mitsunori Tokuda ,  Syuichi Suzuki ,  Shin Fujitani ,  Reizo Maeda ,  Ikuo Yonezu ,  Koji Nishio

IPC分类号： H01M4/52 ,  H01M10/24 ,  H01M10/44 ,  H01M4/32

CPC分类号： H01M10/44 ,  H01M10/24 ,  H01M4/52 ,  Y02E60/124

摘要： In an alkali storage battery comprising a positive electrode, a negative electrode and an alkali electrolyte in a battery can, .alpha.-nickel hydroxide containing manganese is used as a cathode active material for the positive electrode, and the difference between a charging potential and an oxygen gas evolution potential at the positive electrode is increased, to suppress oxygen gas evolution during the charging, and the volume percentage of the cathode active material and an anode active material is set to not less than 75% in the battery can, to obtain a large battery capacity.

摘要翻译： PCT No.PCT / JP97 / 04774 Sec。 371日期1999年4月22日 102（e）1999年4月22日PCT 1997年12月22日PCT公布。 第WO98 / 31063号公报 日期：1998年7月16日在包含电池罐中的正极，负极和碱性电解质的碱性蓄电池中，使用含有锰的氢氧化镍含量作为正极的正极活性物质， 充电电位和正极的氧气放出电位增加，以抑制充电期间的氧气放出，并且阴极活性物质和负极活性物质的体积百分比在电池罐中设定为不小于75％ ，以获得较大的电池容量。

公开(公告)号：US6007946A

公开(公告)日：1999-12-28

申请号：US881146

申请日：1997-06-24

申请人： Mutsumi Yano ,  Mitsuzo Nogami ,  Katsuhiko Shinyama ,  Kousuke Satoguchi ,  Mitsunori Tokuda ,  Ikuo Yonezu ,  Koji Nishio ,  Masao Inoue ,  Shin Fujitani

发明人： Mutsumi Yano ,  Mitsuzo Nogami ,  Katsuhiko Shinyama ,  Kousuke Satoguchi ,  Mitsunori Tokuda ,  Ikuo Yonezu ,  Koji Nishio ,  Masao Inoue ,  Shin Fujitani

IPC分类号： H01M4/32 ,  H01M4/52 ,  H01M4/24 ,  H01M4/26

CPC分类号： H01M4/32 ,  H01M4/52 ,  Y02P70/54

摘要： In the non-sintered nickel electrode for an alkaline storage battery according to the invention, a yttrium metal powder and/or a yttrium compound powder has been added to a particulate active material comprising composite particles each consisting of a nickel hydroxide core and a sodium-doped cobalt compound shell. Because the yttrium metal powder and/or yttrium compound powder inhibits the diffusion of cobalt into the nickel hydroxide core, the non-sintered nickel electrode of the invention exhibits a high utilization efficiency not only in an initial phase of charge-discharge cycling but over a long time of use. Moreover, because the yttrium metal powder and/or yttrium compound powder enhances the oxygen overpotential, the non-sintered nickel electrode for an alkaline storage battery according to the invention shows very satisfactory charge characteristics particularly at high temperatures.

摘要翻译： 在根据本发明的碱性蓄电池的非烧结镍电极中，将钇金属粉末和/或钇化合物粉末添加到包含复合颗粒的颗粒活性材料中，每个复合颗粒由氢氧化镍芯和钠 - 掺钴复合壳。 由于钇金属粉末和/或钇化合物粉末抑制钴扩散到氢氧化镍芯中，本发明的非烧结镍电极不仅在充放电循环的初始阶段中显示出高的利用效率， 使用时间长 此外，由于钇金属粉末和/或钇化合物粉末提高氧超电势，所以根据本发明的碱性蓄电池的非烧结镍电极显示出非常令人满意的充电特性，特别是在高温下。

公开(公告)号：US5908487A

公开(公告)日：1999-06-01

申请号：US823013

申请日：1997-03-21

申请人： Koichi Nishimura ,  Takahiro Yonesaki ,  Shin Fujitani ,  Hiroshi Nakamura ,  Yumiko Nakamura ,  Ikuo Yonezu ,  Hiroshi Watanabe

发明人： Koichi Nishimura ,  Takahiro Yonesaki ,  Shin Fujitani ,  Hiroshi Nakamura ,  Yumiko Nakamura ,  Ikuo Yonezu ,  Hiroshi Watanabe

IPC分类号： B22F1/00 ,  B22F9/02 ,  C01B3/00 ,  C22C32/00 ,  F17C11/00 ,  H01M8/06 ,  B22F9/00

CPC分类号： H01M8/065 ,  B22F1/0014 ,  B22F1/0059 ,  B22F9/023 ,  C01B3/0005 ,  C01B3/0057 ,  C01B3/0078 ,  C01B3/0084 ,  C22C32/0094 ,  F17C11/005 ,  B22F2998/00 ,  Y02E60/321 ,  Y02E60/327 ,  Y02P20/129 ,  Y10S420/90

摘要： A hydrogen absorbing alloy-packed container packed with a mixture of powders classified respectively into at least two particle-size distribution groups, each of which is different in mean particle size, the powders comprising a hydrogen absorbing alloy singly or the combination of a hydrogen absorbing alloy and a substance not absorbing hydrogen, the mixture having a ratio r.sub.N+1 /r.sub.N, wherein r.sub.N is the mean particle size of the powder having a particle-size distribution of the Nth largest mean particle size, N being an integer of not smaller than 1, and r.sub.N+1 is the mean particle size of the powder having a particle-size distribution of the (N+1)th largest mean particle size, of at least 0.03 to not greater than 0.50. The alloy powders can be selected from the group consisting of lanthanum-nickel, mischmetal-nickel, iron titanium and titanium manganese.

摘要翻译： 填充有分散在至少两个粒度分布基团中的粉末混合物的吸氢合金填充容器，每个粒度分布基团的平均粒度不同，单独地包含吸氢合金的粉末或吸氢合金的组合 合金和不吸收氢的物质，混合物的比例为rN + 1 / rN，其中rN是具有第N个最大平均粒径的粒度分布的粉末的平均粒度，N不小于 并且rN + 1是具有（N + 1）个最大平均粒径的粒度分布的粉末的平均粒度为至少0.03以上且0.50以下。 合金粉末可选自镧 - 镍，混合稀土 - 镍，铁钛和钛锰。

公开(公告)号：US5304345A

公开(公告)日：1994-04-19

申请号：US963030

申请日：1992-10-19

申请人： Shin Fujitani ,  Ikuo Yonezu ,  Koichi Nishimura ,  Toshihiko Saito ,  Akio Furukawa

发明人： Shin Fujitani ,  Ikuo Yonezu ,  Koichi Nishimura ,  Toshihiko Saito ,  Akio Furukawa

IPC分类号： C22C19/00 ,  C22C19/03 ,  H01M4/38

CPC分类号： H01M4/383 ,  Y10S420/90

摘要： A hydrogen absorbing alloy having a crystal structure of CaCu.sub.5 -type hexagonal system and represented by the general formula Re.sub.1-x Y.sub.x (Ni.sub.5-y G.sub.y).sub.z wherein Re is one of La, Ce, Nd, Pr, misch metal and lanthanum-rich misch metal, Y is yttrium, Ni is nickel, and G is an element capable of forming an intermetallic compound or complete solid solution in corporation with Ni or a mixture of such elements, and x, y and z are in the ranges of 0

摘要翻译： 具有CaCu5型六方晶系的晶体结构并由通式Re 1-x Y x（Ni 5-y Ge y）z表示的吸氢合金，其中Re为La，Ce，Nd，Pr，混合稀土金属和富镧稀混合金属之一 ，Y是钇，Ni是镍，G是能够与Ni或这些元素的混合物一起形成金属间化合物或完全固溶体的元素，x，y和z在0

公开(公告)号：US5841043A

公开(公告)日：1998-11-24

申请号：US854846

申请日：1997-05-12

申请人： Koichi Nishimura ,  Takahiro Yonesaki ,  Shin Fujitani ,  Hiroshi Nakamura ,  Yumiko Nakamura ,  Ikuo Yonezu ,  Hiroshi Watanabe

发明人： Koichi Nishimura ,  Takahiro Yonesaki ,  Shin Fujitani ,  Hiroshi Nakamura ,  Yumiko Nakamura ,  Ikuo Yonezu ,  Hiroshi Watanabe

IPC分类号： B22F1/00 ,  B22F9/02 ,  C01B3/00 ,  C22C32/00 ,  F17C11/00 ,  H01M8/06 ,  C22C19/03

CPC分类号： H01M8/065 ,  B22F1/0014 ,  B22F1/0059 ,  B22F9/023 ,  C01B3/0005 ,  C01B3/0057 ,  C01B3/0078 ,  C01B3/0084 ,  C22C32/0094 ,  F17C11/005 ,  B22F2998/00 ,  Y02E60/321 ,  Y02E60/327 ,  Y02P20/129 ,  Y10S420/90

摘要： A shaped body of hydrogen absorbing alloy prepared by pressing a mixture of a hydrogen absorbing alloy powder A having a first particle-size distribution, a hydrogen absorbing alloy powder B having a second particle-size distribution and a binder C, the powder A being larger than the powder B in mean particle size, the mixture being at least 0.03 to not gerater than 0.50 in the mean particle size ratio r.sub.B /r.sub.A of the powder B to the powder A wherein r.sub.A and r.sub.B are the mean particle sizes of the respective powders A and B. The hydrogen absorbing alloy of the powder B is higher than the hydrogen absorbing alloy of the powder A in the rate of progress of pulverization resulting from absorption and desorption of hydrogen.

摘要翻译： 通过压制具有第一粒度分布的吸氢合金粉末A，具有第二粒度分布的吸氢合金粉末B和粘合剂C的混合物制备的吸氢合金成形体，粉末A较大 与平均粒径的粉末B相比，在粉末B与粉末A的平均粒径比rB / rA中，混合物的摩尔比为0.50以上，rA和rB为各粉末的平均粒径 A和B.粉末B的吸氢合金比由氢的吸收和解吸产生的粉碎进程的速度高于粉末A的吸氢合金。