Nonaqueous electrolyte battery sealed in a film case
US6475668B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2000 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Dec 15, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A film case forming a nonaqueous electrolyte battery of this invention is formed by a packaging film including an engineering plastic layer, at least one metallic layer laminated inside the engineering plastic layer, at least one acid resistant layer laminated inside the metallic layer, and at least one water-proof thermoplastic polymer layer laminated inside the acid resistant layer. The acid resistant layer contains a thermoplastic polymer and at least one a metal compound, selected from the group consisting of magnesium oxide and hydrotalcites, in an amount of about 2 parts by weight to about 25 parts by weight with respect to 100 parts by weight of the thermoplastic polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.