Separator and battery
US8017263B2 · kind B2 · utility
5Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2007 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Apr 12, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery in which a cathode and an anode are arranged so as to face each other an having a separator in between is provided. The separator is formed from a plurality of laminated microporous membranes and has a film thickness of 10x μm and a piercing strength of 150x gf or more, where 1≦x≦2. The air permeability of one layer among the plurality of microporous membranes is equal to or larger than 10% of the air permeability of the whole separator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.