公开(公告)号：US07413589B2

公开(公告)日：2008-08-19

申请号：US11235185

申请日：2005-09-27

申请人： Hironobu Arashima ,  Takashi Ebisawa ,  Hideaki Itoh

发明人： Hironobu Arashima ,  Takashi Ebisawa ,  Hideaki Itoh

IPC分类号： C22C1/02 ,  C22B4/06

CPC分类号： C01B3/0031 ,  C01B3/0005 ,  C01B3/001 ,  C01P2002/76 ,  C01P2004/04 ,  C30B11/00 ,  C30B13/00 ,  C30B29/52 ,  H01M4/383 ,  H01M8/04216 ,  Y02E60/327 ,  Y10S420/90

摘要： A melt of a hydrogen storage alloy having an arbitrary composition is cooled gradually at a cooling rate of 5° C./min or less and solidified. Alternatively an alloy having an arbitrary composition, after heating to a temperature equal to or more than a melting point thereof, is cooled gradually at a cooling rate of 5° C./min or less and solidified. Thereby a homogeneous alloy reduced in segregation, precipitates, or inclusions is obtained. The homogeneous alloy is excellent in the hydrogen storage amount, in the plateau property and in durability.

摘要翻译： 具有任意组成的储氢合金的熔体以5℃/ min以下的冷却速度逐渐冷却并固化。 或者，加热至等于或大于其熔点的温度的具有任意组成的合金以5℃/分钟以下的冷却速度逐渐冷却并固化。 从而获得了偏析，析出物或夹杂物减少的均匀合金。 均质合金的储氢量，平台性和耐久性优异。

公开(公告)号：US20060027041A1

公开(公告)日：2006-02-09

申请号：US11235185

申请日：2005-09-27

申请人： Hironobu Arashima ,  Takashi Ebisawa ,  Hideaki Itoh

发明人： Hironobu Arashima ,  Takashi Ebisawa ,  Hideaki Itoh

IPC分类号： C22B4/06

CPC分类号： C01B3/0031 ,  C01B3/0005 ,  C01B3/001 ,  C01P2002/76 ,  C01P2004/04 ,  C30B11/00 ,  C30B13/00 ,  C30B29/52 ,  H01M4/383 ,  H01M8/04216 ,  Y02E60/327 ,  Y10S420/90

摘要： A melt of a hydrogen storage alloy having an arbitrary composition is cooled gradually at a cooling rate of 5° C./min or less and solidified. Alternatively an alloy having an arbitrary composition, after heating to a temperature equal to or more than a melting point thereof, is cooled gradually at a cooling rate of 5° C./min or less and solidified. Thereby a homogeneous alloy reduced in segregation, precipitates, or inclusions is obtained. The homogeneous alloy is excellent in the hydrogen storage amount, in the plateau property and in durability.

摘要翻译： 具有任意组成的储氢合金的熔体以5℃/ min以下的冷却速度逐渐冷却并固化。 或者，加热至等于或大于其熔点的温度的具有任意组成的合金以5℃/分钟以下的冷却速度逐渐冷却并固化。 从而获得了偏析，析出物或夹杂物减少的均匀合金。 均质合金的储氢量，平台性和耐久性优异。

公开(公告)号：US07691216B2

公开(公告)日：2010-04-06

申请号：US10394274

申请日：2003-03-24

申请人： Hironobu Arashima ,  Takashi Ebisawa ,  Hideaki Itoh

发明人： Hironobu Arashima ,  Takashi Ebisawa ,  Hideaki Itoh

IPC分类号： B22D30/00

CPC分类号： C01B3/0031 ,  C01B3/0005 ,  C01B3/001 ,  C01P2002/76 ,  C01P2004/04 ,  C30B11/00 ,  C30B13/00 ,  C30B29/52 ,  H01M4/383 ,  H01M8/04216 ,  Y02E60/327 ,  Y10S420/90

摘要： A melt of a hydrogen storage alloy having an arbitrary composition is cooled gradually at a cooling rate of 5° C./min or less and solidified. Alternatively an alloy having an arbitrary composition, after heating to a temperature equal to or more than a melting point thereof, is cooled gradually at a cooling rate of 5° C./min or less and solidified. Thereby a homogeneous alloy reduced in segregation, precipitates, or inclusions is obtained. The homogeneous alloy is excellent in the hydrogen storage amount, in the plateau property and in durability.

摘要翻译： 具有任意组成的储氢合金的熔体以5℃/ min以下的冷却速度逐渐冷却并固化。 或者，加热至等于或大于其熔点的温度的具有任意组成的合金以5℃/分钟以下的冷却速度逐渐冷却并固化。 从而获得了偏析，析出物或夹杂物减少的均匀合金。 均质合金的储氢量，平台性和耐久性优异。

公开(公告)号：US20090269275A1

公开(公告)日：2009-10-29

申请号：US12067787

申请日：2006-09-11

申请人： Kazuya Kubo ,  Toshiki Kabutomori ,  Soumei Oonuki ,  Hironobu Arashima ,  Kunihiko Hashi ,  Hideaki Ito

发明人： Kazuya Kubo ,  Toshiki Kabutomori ,  Soumei Oonuki ,  Hironobu Arashima ,  Kunihiko Hashi ,  Hideaki Ito

IPC分类号： C01B3/02

CPC分类号： H01M4/383 ,  B22F9/04 ,  B22F2998/10 ,  C22C1/00 ,  C22C1/0491 ,  C22C30/00 ,  C22F1/18 ,  H01M8/04216 ,  H01M8/065 ,  B22F9/06 ,  B22F1/0085 ,  B22F9/023

摘要： The invention intends to provide a hydrogen storage alloy that can absorb and release hydrogen effectively at room temperature and shows excellent hydrogen storage amount and effective hydrogen transfer amount and furthermore shows excellent endurance.A pulverized hydrogen storage alloy powder is heated at 600° C. or more and 1200° C. or less for 10 min to 30 hr to apply strain relief annealing. A particle diameter of the hydrogen storage alloy powder is desirably 10 μm or less and the hydrogen storage alloy is desirably mainly composed of a BCC phase. Since the initial strain ahead of the hydrogenation is removed, a solid solution region of hydrogen is largely reduced and an initial hydrogen storage amount and an effective hydrogen transfer amount are increased. Owing to the pulverization, the strains are largely reduced from accumulating and propagating, the strains at the hydrogen storage are largely reduced from generating, an absorption plateau is largely increased, in addition thereto, the deterioration rate due to repetition of hydrogen storage and release can be largely improved.

摘要翻译： 本发明提供一种能够在室温下有效吸收和释放氢的储氢合金，显示出优异的储氢量和有效的氢转移量，并且还显示出优异的耐久性。 将粉碎的储氢合金粉末在600℃以上1200℃以下加热10分钟〜30小时，进行应变消除退火。 储氢合金粉末的粒径优选为10μm以下，希望主要由BCC相组成。 由于氢化之前的初始应变被去除，氢的固溶区域大大降低，并且初始储氢量和有效氢转移量增加。 由于粉碎，菌株在积累和繁殖中大大减少，储氢时的菌株大量减少，吸收平台大大增加，除此之外，由于重复储氢释放而导致的劣化率 大大改善。