Aromatic polyamide porous membrane, method for preparing and lithium secondary battery having the same
US10879512B2 · kind B2 · utility
1Cited by
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17Claims
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Key dates
| Filing date | Sep 6, 2018 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Feb 13, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides an aromatic polyamide porous membrane having a uniform internal structure. The internal structure of the membrane is a three-dimensional network porous structure with micron-sized pores. The aromatic polyamide porous membrane of the present disclosure has good thermal stability and is especially suitable for a high energy density lithium-ion power battery, and greatly improves the thermal runaway temperature of the battery. The present disclosure further provides a method for preparing the membrane and a lithium secondary battery having the membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.