公开(公告)号：US20090061316A1

公开(公告)日：2009-03-05

申请号：US12199502

申请日：2008-08-27

申请人： Shuhei YOSHIDA ,  Kazuaki TAMURA ,  Yoshinobu KATAYAMA ,  Teruhito NAGAE ,  Masao TAKEE

发明人： Shuhei YOSHIDA ,  Kazuaki TAMURA ,  Yoshinobu KATAYAMA ,  Teruhito NAGAE ,  Masao TAKEE

IPC分类号： H01M4/46 ,  H01M4/58

CPC分类号： H01M4/383 ,  H01M4/366 ,  H01M10/345 ,  Y02E60/124

摘要： A hydrogen storage alloy used in a hydrogen storage alloy electrode 11 has a crystalline structure having a mixed phase made up of at least an A2B7 type structure and an A5B19 type structure, and a surface layer of hydrogen storage alloy particles is so formed as to have a nickel content ratio greater than that of a bulk. The ratio (X/Y) of the nickel content ratio X (% by mass) of the surface layer to the nickel content ratio Y (% by mass) of the bulk is greater than 1.0 but no more than 1.2 (1.0

摘要翻译： 在储氢合金电极11中使用的储氢合金具有由至少A2B7型结构和A5B19型结构构成的混合相的晶体结构，并且形成储氢合金粒子的表层，具有 镍含量比大于体积的镍含量比。 本体的表面层的镍含量比X（质量％）与镍含量比Y（质量％）的比（X / Y）大于1.0但不大于1.2（1.0

公开(公告)号：US20080299458A1

公开(公告)日：2008-12-04

申请号：US12128968

申请日：2008-05-29

申请人： Shuhei YOSHIDA ,  Kazuaki TAMURA ,  Yoshinobu KATAYAMA ,  Teruhito NAGAE ,  Masao TAKEE

发明人： Shuhei YOSHIDA ,  Kazuaki TAMURA ,  Yoshinobu KATAYAMA ,  Teruhito NAGAE ,  Masao TAKEE

IPC分类号： H01M4/58 ,  C01B6/24

CPC分类号： H01M4/242 ,  C01B3/0057 ,  H01M10/24 ,  Y02E60/124 ,  Y02E60/327 ,  Y02P70/54

摘要： To provide a hydrogen storage alloy for an alkaline battery capable of having high performance of power characteristics much more beyond the related-art range, and a production method thereof, as well as an alkaline battery by investigating the constituent ratios of the A2B7-type structure and the A5B19-type structure.The hydrogen storage alloy for an alkaline battery of the present invention includes: an element R selected from the Group IV and the rare earth elements including Y and excluding La; and an element M consisting of at least one of Co, Mn, and Zn. The hydrogen storage alloy is represented by general formula: LaαR1-α-βMgβNiγ-η-εAlηMε (wherein α, β, γ, η, ε satisfy numerical formulae: 0≦α≦0.5, 0.1≦β≦0.2, 3.7≦γ≦3.9, 0.1≦η≦0.3, 0≦ε≦0.2); and the constituent ratio of the A5B19-type structure is 40% or more in the crystal structure thereof.

摘要翻译： 为了提供一种能够具有比现有技术范围更高的功率特性的高性能的碱性电池的储氢合金及其制造方法以及通过研究A2B7型结构的组成比例的碱性电池 和A5B19型结构。 本发明的用于碱性电池的储氢合金包括：选自第IV族的元素R和包括Y且不包括La的稀土元素; 以及由Co，Mn和Zn中的至少一种构成的元素M. 储氢合金由以下通式表示：LaalphaR1-α-βMgbetaNigamma-eta-epsilonAletaMepsilon（其中α，β，γ，eta，ε满足数学公式：0 <=α<= 0.5,0.1 <=β= 0.2， 3.7 <=γ<= 3.9，0.1 <= eta <= 0.3,0 <=ε= 0.2）; 并且在其晶体结构中，A5B19型结构的构成比为40％以上。

公开(公告)号：US20090087745A1

公开(公告)日：2009-04-02

申请号：US12237590

申请日：2008-09-25

申请人： Atsutoshi AKO ,  Makoto OCHI ,  Shuhei YOSHIDA ,  Kazuhiro KITAOKA ,  Masao TAKEE

发明人： Atsutoshi AKO ,  Makoto OCHI ,  Shuhei YOSHIDA ,  Kazuhiro KITAOKA ,  Masao TAKEE

IPC分类号： H01M4/58

CPC分类号： H01M4/383 ,  H01M4/242 ,  H01M10/286 ,  H01M10/345 ,  H01M10/44 ,  Y02E60/124

摘要： An alkaline storage battery system includes an alkaline storage battery 10 including an electrode group having a hydrogen storage alloy negative electrode 11 using a hydrogen storage alloy as a negative electrode active material, a nickel positive electrode 12 using nickel hydroxide as a main positive electrode active material, and a separator 13, and further including an alkaline electrolyte, in an outer can 17, and is performed partial charge-discharge control. Here, the hydrogen storage alloy has at least A5B19 type crystal structure, and a stoichiometric ratio (B/A) representing a molar ratio of B component to A component in the A5B19 type crystal structure is 3.8 or more. According to the alkaline storage battery system of the present invention, an alkaline storage battery system that ensures high power, reduces the used amount of the hydrogen storage alloy significantly, and is controlled partial charging-discharging is obtained.

摘要翻译： 碱性蓄电池系统包括碱性蓄电池10，其包括具有使用储氢合金作为负极活性物质的储氢合金负极11的电极组，使用氢氧化镍作为主正极活性物质的镍正极12 ，以及隔板13，并且在外罐17中还包括碱性电解质，并进行部分充放电控制。 这里，储氢合金具有至少A5B19型晶体结构，并且表示A5B19型晶体结构中B成分与A成分的摩尔比的化学计量比（B / A）为3.8以上。 根据本发明的碱性蓄电池系统，能够显着地确保高功率的碱性蓄电池系统，显着地减少了储氢合金的使用量，并进行了控制的部分充放电。

公开(公告)号：US20090087741A1

公开(公告)日：2009-04-02

申请号：US12238813

申请日：2008-09-26

申请人： Makoto OCHI ,  Atsutoshi AKO ,  Yasuyuki HARADA ,  Kazuhiro KITAOKA ,  Masao TAKEE

发明人： Makoto OCHI ,  Atsutoshi AKO ,  Yasuyuki HARADA ,  Kazuhiro KITAOKA ,  Masao TAKEE

IPC分类号： H01M10/26

CPC分类号： H01M10/345 ,  H01M4/0416 ,  H01M4/28 ,  H01M4/32 ,  H01M4/52 ,  H01M4/80 ,  H01M10/26 ,  H01M10/44 ,  H01M2300/0014 ,  Y02E60/124

摘要： An alkaline storage battery system according to an aspect of the present invention, with which a partial charging-discharging is performed, includes an alkaline storage battery 10 including an electrode group having a nickel positive electrode 11, a hydrogen storage alloy negative electrode 12, a separator 13; an alkaline electrolyte; and an outer can 14 accommodating the electrode group and the alkaline electrolyte, and further includes a partial charge-discharge control unit for controlling charging-discharging of the battery 10. In addition, zinc (Zn) is added to nickel hydroxide that is a main positive electrode active material in the nickel positive electrode 11 with an addition amount of 5% by mass or less with respect to the mass of nickel in the positive electrode active material. The concentration of the alkaline electrolyte is 6.5 mol/L or less and the content of lithium in the alkaline electrolyte is 0.3 mol/L or more.

摘要翻译： 根据本发明的一个方面的执行部分充电放电的碱性蓄电池系统包括：碱性蓄电池10，其包括具有镍正极11的电极组，储氢合金负极12， 分离器13; 碱性电解液 以及容纳电极组和碱性电解质的外罐14，还包括用于控制电池10的充电 - 放电的部分充放电控制单元。此外，将锌（Zn）加入作为主要的氢氧化镍 相对于正极活性物质中的镍的质量，镍正极11中的正极活性物质的添加量为5质量％以下。 碱性电解质的浓度为6.5mol / L以下，碱性电解液中的锂的含量为0.3mol / L以上。