Alkaline storage battery, positive electrode material for alkaline storage battery, and method for manufacturing positive electrode material for alkaline storage battery
US9419273B2 · kind B2 · utility
13Cited by
25References
5Claims
0Family size
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Key dates
| Filing date | Sep 26, 2013 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Sep 8, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A positive electrode material for an alkaline storage battery includes nickel hydroxide. Zn and an A element are held in solid solution in a crystallite of the nickel hydroxide, the A element being at least one element selected from the group consisting of Al, Ga, Mn, and Mo. The content of the A element, [A]/([Ni]+[A]+[Zn]), is 5 to 16% (where [A] represents the molarity of the A element,[Ni] represents the molarity of nickel, and [Zn] represents the molarity of zinc in the crystallite). [Zn]/([Ni]+[A]+[Zn]) is 1 to 10%. The nickel hydroxide includes α-phase nickel hydroxide and β-phase nickel hydroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.