Battery sealing plate coated with protective film and battery sealed with the same
US6444348B1 · kind B1 · utility
19Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2000 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Mar 2, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A closing plate for a battery comprises a metal substrate provided with a safety valve at a peripheral portion thereof. The safety valve is protected by applying a protection film to the metal substrate of the closing plate. The closing plate comprises a metal substrate, metal foil which is adhered to the lower surface of the metal substrate, and a protection film attached to the upper surface of the metal substrate, which protection film has previously been provided with a cut in a prescribed shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.