Connected porous sheet and method for producing the same, separator for non-aqueous secondary battery, and non-aqueous secondary battery, and method for producing the same
US9391309B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Oct 21, 2011 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Dec 2, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1062
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An example of the present invention is provided with porous sheets 11, 21 each formed by layering a porous base material including a polyolefin and a heat-resistant porous layer including a heat-resistant resin. The porous sheets 11, 21, respectively, are connected at connecting regions 15a and 15b, 25a and 25b, respectively, which have been formed by thermal fusion of the heat-resistant porous layers facing each other by folding the sheets. Furthermore, the porous sheets 11, 21 are additionally connected at a connecting region 27 that has been formed by thermal fusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.