摘要:
A hydrogen-absorbing alloy for battery according to the present invention comprises an alloy having the composition represented by a general formula A Ni a Mn b M c [where, A is at least one kind of element selected from rare earth elements including Y (yttrium), M is a metal mainly composed of at least one kind of element selected from Co, Al, Fe, Si, Cr, Cu, Ti, Zr, Zn, Hf, V, Nb, Ta, Mo, W, Ag, Pd, B, Ga, In, Ge and Sn, 3.5≦ a≦ 5, 0.1 ≦ b ≦ 1, 0 ≦ c ≦ 1, 4.5≦ a + b + c≦ 6], wherein the alloy has columnar structures in which the area ratio of the columnar structures having the ratio of a minor diameter to a major diameter (aspect ratio) of 1 : 2 or higher is 50 % or more. Further, an average minor diameter of the columnar structures is set to 30 microns or less. With this arrangement, there can be provided a nickel-metal hydride battery capable of satisfying the three leading characteristics of a high electrode capacity, long life and good rising-up all together.
摘要翻译:对于电池雅丁的吸氢合金具有由通式A的Ni的锰B M [其中,A是至少一种元素从稀土元素包括Y(钇),M所选表示的组成的合金的本发明包括 是主要由至少一种元素的从钴,铝,铁,硅,铬,铜,钛,锆,锌,铪,钒,铌,钽,钼,钨,银,钯,B中选择的金属, 镓,铟,Ge和Sn,3.5 =一个 = 5,0.1 = b = 1,0 = C = 1,4.5 = A + b + C = 6],worin该合金具有柱状结构,其中,具有较小的直径与大直径(纵横比)的比例为1的柱状结构体的面积率:2或更高是50%或更多。 此外,在柱状结构的平均短径为30微米或更小。 利用这种布置,可以上升时所有一起提供能够满足高电极容量,长寿命的三个领先特性和良好的镍 - 金属氢化物电池。
摘要:
A hydrogen-absorbing alloy for battery according to the present invention comprises an alloy having the composition represented by a general formula A Ni a Mn b M c [where, A is at least one kind of element selected from rare earth elements including Y (yttrium), M is a metal mainly composed of at least one kind of element selected from Co, Al, Fe, Si, Cr, Cu, Ti, Zr, Zn, Hf, V, Nb, Ta, Mo, W, Ag, Pd, B, Ga, In, Ge and Sn, 3.5≦ a≦ 5, 0.1 ≦ b ≦ 1, 0 ≦ c ≦ 1, 4.5≦ a + b + c≦ 6], wherein the alloy has columnar structures in which the area ratio of the columnar structures having the ratio of a minor diameter to a major diameter (aspect ratio) of 1 : 2 or higher is 50 % or more. Further, an average minor diameter of the columnar structures is set to 30 microns or less. With this arrangement, there can be provided a nickel-metal hydride battery capable of satisfying the three leading characteristics of a high electrode capacity, long life and good rising-up all together.
摘要翻译:根据本发明的电池用吸氢合金包含具有由通式A表示的组成的合金:Nia Mnb Mc [其中,A是从包括Y(钇)的稀土元素中选择的至少一种元素,M 是主要由选自Co,Al,Fe,Si,Cr,Cu,Ti,Zr,Zn,Hf,V,Nb,Ta,Mo,W,Ag,Pd,B, Ga,In,Ge和Sn,3.5≤a≤5,0.1≤b≤1,0≤c≤1,4.5≤a+ b +c≤6],其中所述合金具有柱状结构,其中所述 具有1:2或更高的短径与长径比(纵横比)的柱状结构体为50%以上。 此外,柱状结构的平均短径设定为30微米或更小。 通过这种设置,可以提供一种能够满足高电极容量,长寿命和良好起伏的三个主要特征的镍 - 金属氢化物电池。
摘要:
The present invention concerns a hydrogen-absorbing alloy for a battery, wherein at least 90 vol-% of said hydrogen-absorbing alloy is composed of AB x of single phase wherein
A is at least one kind of element selected from rare earth elements including Y (yttrium); B is a metal mainly composed of Ni and at least one kind of element selected from Co, Al, Fe, Si, Cr, Cu, Mn, Ti, Zr, Zn, Hf, V, Nb, Ta, Mo, W, Ag, Pd, B, Ga, In, Ge and Sn; 5,05 ≤ x ≤ 6; and 10 vol-% or less of said hydrogen-absorbing alloy is composed of other phases selected from the group consisting of B, AB, AB 2 , AB 3 , A 2 B 7 , AB 5 and AB 1,4 .
The invention also relates to a process for manufacturing such a hydrogen-absorbing alloy for a battery as well as a secondary nickel-metal hydride battery including a negative electrode containing the alloy claimed.