Method for making hydrogen storage alloy powder and electrode comprising the alloy powder
US6277519A · kind A · utility
4Cited by
6References
16Claims
0Family size
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Key dates
| Filing date | Jan 27, 1998 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Jan 27, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for making hydrogen storage alloy powder comprises quenching a melt of a hydrogen storage alloy, breaking the quenched alloy into fine pieces provided that said alloy is in non-powder form after the quenching, and subjecting the fine pieces to treatment with a solution containing a conjugated unsaturated compound which has five or more conjugated .pi. bonds in the molecule and a molecular weight of 100 or above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.