Separator for electrochemical device and method for producing the same
US6905798B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2001 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Dec 18, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provide a separator for an electrochemical device which comprises a wet nonwoven fabric comprising one or more kinds of fibrillated organic fibers which are at least partially fibrillated into a fiber diameter of 1 μm or less, and one or more kinds of unfibrillated organic fibers having a fineness of 0.5 dtex or less, which exhibits excellent heat resistance, electrolyte holding properties, internal short-circuit preventing property, and winding property, which results in a lowered internal resistance and prolonged life of an electrochemical device, and a method for producing the same and an electrochemical device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.