Surface treated steel sheet for battery case, battery case and battery using the case
US7923145B2 · kind B2 · utility
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7References
3Claims
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Assignee
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Key dates
| Filing date | Apr 17, 2003 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Mar 15, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12972
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A surface treated steel sheet for a battery case, which has a diffusion layer of a nickel-phosphorus alloy or a nickel-cobalt-phosphorus alloy formed on the outermost layer of the inside surface of a plated steel sheet for a battery case; a battery case which is produced through forming the surface-treated steel sheet having a diffusion layer of a nickel-phosphorus alloy or a nickel-cobalt-phosphorus alloy by the deep drawing method, the DI forming or the DTR forming: and a battery using the battery case. The battery case can be used for producing a battery excellent in battery characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.