Nickel-metal hydride storage battery including negative electrode containing yttrium substituted hydrogen storage alloy and electrolyte solution containing sodium hydroxide
US9490477B2 · kind B2 · utility
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Key dates
| Filing date | Sep 25, 2013 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Jan 11, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A nickel-metal hydride storage battery includes a negative electrode containing a hydrogen storage alloy and an electrolyte solution. The hydrogen storage alloy has a CaCu5-type crystal structure and contains at least a Ni element and a rare earth element. The rare earth element is partly substituted with an Y element, and the electrolyte solution contains NaOH in an amount of 2.0 M or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.