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1.发明申请ALLOY POWDER FOR ELECTRODES, NEGATIVE ELECTRODE FOR NICKEL-METAL HYDRIDE STORAGE BATTERIES INCLUDING THE SAME, AND NICKEL-METAL HYDRIDE STORAGE BATTERY INCLUDING THE SAME 有权用于电极的合金粉末，包括其的镍金属储存电池的负极和包括其的镍 - 金属储存电池公开(公告)号：US20150104703A1
公开(公告)日：2015-04-16
申请号：US14399145
申请日：2014-02-19
Inventor： Akiko Okabe , Hideaki Ohyama , Shinichi Sumiyama , Yasushi Nakamura , Kiyoshi Hayashi , Hiroki Takeshima , Fumio Kato
CPC classification number: H01M4/383 , C22C1/0433 , C22C19/03 , C22C30/00 , H01M2/1653 , H01M4/385 , H01M10/26 , H01M10/30 , H01M2004/027 , H01M2220/20 , H01M2300/0014 , Y02E60/124
Abstract: Disclosed is an alloy powder for electrodes for nickel-metal hydride storage batteries having a high battery capacity and being excellent in life characteristics and high-temperature storage characteristics. The alloy powder includes a hydrogen storage alloy containing elements L, M, Ni, Co, and E. L includes La as an essential component. L includes no Nd, or when including Nd, the percentage of Nd in L is less than 5 mass %. The percentage of La in the hydrogen storage alloy is 23 mass % or less. M is Mg, Ca, Sr and/or Ba. A molar ratio α to a total of L and M is 0.045≦α≦0.133. A molar ratio x of Ni to the total of L and M is 3.5≦x≦4.32, and a molar ratio y of Co is 0.13≦y≦0.5. The molar ratios x and y, and a molar ratio z of E to the total of L and M satisfy 4.78≦x+y+z
Abstract translation: 公开了一种具有高电池容量并且具有优异的寿命特性和高温存储特性的镍氢蓄电池用电极用合金粉末。 合金粉末包括含有元素L，M，Ni，Co和E的储氢合金.L包括La作为必需组分。 L不包括Nd，或者当包含Nd时，L中的Nd的百分比小于5质量％。 储氢合金中的La的比例为23质量％以下。 M是Mg，Ca，Sr和/或Ba。 与L和M的总和的摩尔比α为0.045＆amp; nlE;α＆nlE; 0.133。 Ni与L和M的总量的摩尔比x为3.5＆nlE; x＆nlE; 4.32，Co的摩尔比y为0.13＆nlE; y＆nlE; 0.5。 摩尔比x和y以及E与L和M的总和的摩尔比z满足4.78＆nlE; x + y + z <5.03。
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公开(公告)号：US10128492B2
公开(公告)日：2018-11-13
申请号：US15033056
申请日：2014-12-04
Inventor： Kiyoshi Hayashi , Yasushi Nakamura , Fumio Kato
Abstract: A positive electrode for alkaline storage batteries that enables to improve the active material utilization rate, while suppressing the self-discharge. The positive electrode for alkaline storage batteries includes a support having conductivity, and a positive electrode active material adhering to the support. The positive electrode active material includes particles of a nickel oxide. The particles of the nickel oxide include a first particle group having a particle diameter of 20 μm or more, and a second particle group having a particle diameter of less than 20 μm. The first particle group includes a first component with cracks, and a second component without cracks. The proportion of the first particle group in the particles of the nickel oxide is 15 vol % or more, and the proportion by number of the first component in the first particle group is 15% or more.
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公开(公告)号：US09997776B2
公开(公告)日：2018-06-12
申请号：US14399145
申请日：2014-02-19
Inventor： Akiko Okabe , Hideaki Ohyama , Shinichi Sumiyama , Yasushi Nakamura , Kiyoshi Hayashi , Hiroki Takeshima , Fumio Kato
CPC classification number: H01M4/383 , C22C1/0433 , C22C19/03 , C22C30/00 , H01M2/1653 , H01M4/385 , H01M10/26 , H01M10/30 , H01M2004/027 , H01M2220/20 , H01M2300/0014 , Y02E60/124
Abstract: Disclosed is an alloy powder for electrodes for nickel-metal hydride storage batteries having a high battery capacity and being excellent in life characteristics and high-temperature storage characteristics. The alloy powder includes a hydrogen storage alloy containing elements L, M, Ni, Co, and E. L includes La as an essential component. L includes no Nd, or when including Nd, the percentage of Nd in L is less than 5 mass %. The percentage of La in the hydrogen storage alloy is 23 mass % or less. M is Mg, Ca, Sr and/or Ba. A molar ratio α to a total of L and M is 0.045≤α≤0.133. A molar ratio x of Ni to the total of L and M is 3.5≤x≤4.32, and a molar ratio y of Co is 0.13≤y≤0.5. The molar ratios x and y, and a molar ratio z of E to the total of L and M satisfy 4.78≤x+y+z
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