摘要:
A hydrogen-absorbing alloy is represented by the general formula Ln1-xMgxNiy-a-bAlaMb (where Ln is at least one element selected from the rare-earth elements, Zr, Ti, and Y, M is at least one element selected from the group consisting of V, Nb, Ta, Cr, Mo, Mn, Fe, Co, Ga, Zn, Sn, In, Cu, Si, P, B, and Zr, 0.05≦x≦0.35, 0.05≦a≦0.30, 0≦b≦0.5, and 2.5≦y
摘要:
A negative electrode for a nickel-hydrogen rechargeable battery is a strip-shaped negative electrode, the negative electrode being formed of a core body and a negative mixture layer covering the core body and containing hydrogen-storage alloy particles, including a main section, both sides of which face the positive electrode with the separator intervening therebetween as viewed in a rolled state where the negative electrode forms the electrode group with the positive electrode and the separator, and an outermost circumferential portion and an innermost circumferential portion that are protruding from ends of the main section in a rolling direction and facing the positive electrode with the separator intervening therebetween only with one side, wherein the hydrogen-storage alloy particles contained in the outermost circumferential portion and the innermost circumferential portion have an average diameter larger than an average diameter of the hydrogen-storage alloy particles contained in the main section.
摘要:
A negative electrode for a nickel-hydrogen rechargeable battery is a strip-shaped negative electrode, the negative electrode being formed of a core body and a negative mixture layer covering the core body and containing hydrogen-storage alloy particles, including a main section, both sides of which face the positive electrode with the separator intervening therebetween as viewed in a rolled state where the negative electrode forms the electrode group with the positive electrode and the separator, and an outermost circumferential portion and an innermost circumferential portion that are protruding from ends of the main section in a rolling direction and facing the positive electrode with the separator intervening therebetween only with one side, wherein the hydrogen-storage alloy particles contained in the outermost circumferential portion and the innermost circumferential portion have an average diameter larger than an average diameter of the hydrogen-storage alloy particles contained in the main section.
摘要:
An alkaline secondary cell has an electrode assembly including a positive electrode, a negative electrode and a separator, and alkaline electrolyte. The negative electrode includes hydrogen-storage alloy and an oxidation inhibitor that inhibits the hydrogen-storage alloy from being oxidized. The oxidation inhibitor contains a chemical compound, and the chemical compound includes a chemical-bond-formation end that is chemically bonded to the surface of the hydrogen-storage alloy and a water-repellent end having water repellency.
摘要:
An alkaline secondary cell has an electrode assembly including a positive electrode, a negative electrode and a separator, and alkaline electrolyte. The negative electrode includes hydrogen-storage alloy and an oxidation inhibitor that inhibits the hydrogen-storage alloy from being oxidized. The oxidation inhibitor contains a chemical compound, and the chemical compound includes a chemical-bond-formation end that is chemically bonded to the surface of the hydrogen-storage alloy and a water-repellent end having water repellency.
摘要:
A nickel metal hydride battery includes particles of hydrogen storage alloys in the negative electrode. Such hydrogen storage alloys have a composition expressed by a general formula: (LaaSmbAc)1-wMgwNixAlyTz. In the formula, A and T denote at least one element selected from the groups consisting of: Pr, Nd, and the like; and V, Nb, and the like, respectively, the subscripts a, b, and c satisfy the relationship given by: a>0; b>0; 0.1>c≧0; and a+b+c=1, and the subscripts w, x, y, and z fall within the range given by: 0.1
摘要翻译:镍氢电池包括负极中的储氢合金颗粒。 这种储氢合金具有由以下通式表示的组成:(LaaSmbAc)1-wMgwNixAlyTz。 在该式中,A和T表示选自由Pr,Nd等组成的组中的至少一种元素; 和V,Nb等,下标a,b和c满足由下式给出的关系:a> 0; b> 0; 0.1> c> = 0; 和a + b + c = 1,下标w,x,y和z落在由下式给出的范围内:0.1