Separator and energy storage device
US11870029B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Mar 17, 2021 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Sep 14, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A separator includes: a first porous substrate; and a second porous substrate arranged on at least one surface of the first porous substrate; wherein the elongation at break of the second porous substrate is greater than the elongation at break of the first porous substrate in at least one of the machine and transverse directions of the separator. The separator has a high tensile strength and an elongation at break and good heat resistance, and may improve the safety performance of the energy storage device when the separator is applied to the energy storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.