Separator for alkaline battery, method for producing the same, and battery
US8865336B2 · kind B2 · utility
4Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2007 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Nov 30, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/948
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a separator for alkaline batteries which can not only prevent batteries from internal short circuit by inhibiting the dendrite formation at anode, but also enables to have a low electrical resistance. The separator for alkaline batteries comprises a composite sheet in which a base layer comprising a wet-type nonwoven material formed from alkaline resistant fibers is covered with a nanofiber layer comprising a modified polyvinyl alcohol fiber which has a fiber diameter of 10 to 1000 nm and a liquid absorption amount by fibers of 4.0 to 40.0 g/g after immersion in a 35% aqueous solution of KOH.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.