Current collectors comprising metallised films
US12401044B2 · kind B2 · utility
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29Claims
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Key dates
| Filing date | May 13, 2022 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | May 13, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A current collector comprising a biaxially oriented polymeric substrate layer and a first metal layer on a side of the polymeric substrate layer, wherein the polymeric substrate layer exhibits positive thermal expansion in air at 200° C. in each of the transverse direction (TD) and machine direction (MD). The polymeric substrate layer has a thickness of no more than 12 pm and the first metal layer has a thickness of no more than 1000 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.