Surface-treated steel plate for battery case, battery case and battery using the case
US6270922A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1999 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Jun 16, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12944
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention aims to produce the material for a battery container having the improved battery performance, wherein the internal resistance caused by contacting with the positive electrode mix is remarkably reduced and the corrosion resistance is excellent. It also aims to produce the material, wherein powdering is reduced at the inner surface of the battery container during forming. Furthermore, it aims to produce a battery container manufactured using the material and a battery manufactured using the battery container. The surface treated steel sheet of the present invention for a battery container is comprising a steel substrate on which one side to be the inner surface of the battery container nickel- tin-iron diffusion layer is formed on the uppermost surface. On the side to be the outer surface of the battery container nickel-cobalt-iron diffusion layer is formed on the uppermost surface. Further, on the inner surface of the battery container manufactured by drawing and soon, the nickel-tin-iron diffusion layer is formed, while on the outer surface of it nickel-cobalt-iron diffusion layer is formed. In addition, a battery is manufactured packing the active material in…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.