Alloy powder for electrode, negative electrode for alkaline storage battery using the same, and alkaline storage battery
US9893347B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2013 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | May 23, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is an alloy powder for an electrode which enables an alkaline storage battery to have both excellent discharge characteristics and excellent life characteristics. The alloy powder includes a hydrogen storage alloy including an element L, Mg, Ni, Al, and an element Ma. The element L is at least one selected from the group consisting of group 3 elements and group 4 elements of the periodic table (excluding Y). The element Ma is at least two selected from the group consisting of Ge, Y, and Sn. A molar proportion x of Mg in a total of the element L and Mg is 0.008≦x≦0.54. A molar proportion y of Ni, a molar proportion α of Al, and a molar proportion β of the element Ma, per the foregoing total is 1.6≦y≦4, 0.008≦α≦0.32, and 0.01≦β≦0.12, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.