Radiation curable sealing material for batteries
US5837398A · kind A · utility
6Cited by
15References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1997 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Sep 25, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present application discloses battery sealant compositions which exhibit excellent flexibility and chemical (alkalinity) resistance properties without requiring the use of organic solvents. These compositions comprise an epoxy resin, such as polybutadiene epoxy resin; a polyol material, such as a butadiene polyol; a cationic photoinitiator; and optionally a radiation curable monomer, such as a vinyl ether monomer. Electrochemical (battery) cells which incorporate a seal made by the photoinitiated polymerization of this material is is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.