| abstract |
[Configuration] The positive electrode material for an alkaline storage battery includes nickel hydroxide in which Zn is solid-solved in a crystallite and an element A which is at least one element of the group consisting of Al, Ga, Mn, and Mo. Contains. In the positive electrode material, the mol concentration of element A is [A], the mol concentration of nickel is [Ni], and the mol concentration of zinc is [Zn]. [A] / ([Ni] + [A] + [Zn]) is 5-16%, [Zn] / ([Ni] + [A] + [Zn]) is 1-10%, Nickel hydroxide contains α-phase nickel hydroxide and β-phase nickel hydroxide. [Effect] The number of reaction electrons is large, and the capacity per volume of the positive electrode material is large. [Selection] Figure 1 |