Microlayer membranes, improved battery separators, and methods of manufacture and use
US12191441B2 · kind B2 · utility
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6Claims
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Assignee
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Key dates
| Filing date | Aug 29, 2023 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Aug 29, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In accordance with at least selected embodiments, a battery separator or separator membrane comprises one or more co-extruded multi-microlayer membranes optionally laminated or adhered to another polymer membrane. The separators described herein may provide improved strength, for example, improved puncture strength, particularly at a certain thickness, and may exhibit improved shutdown and/or a reduced propensity to split.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.