Separator structure for secondary battery, method for making the separator, and the secondary battery using the same
US11978922B2 · kind B2 · utility
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28Claims
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Key dates
| Filing date | May 13, 2021 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | Nov 9, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure is applicable to the technical field related to a secondary battery, and relates to, for example, a separator structure for the secondary battery, a method for preparing the same, and the secondary battery using the same. A separator structure disposed inside a secondary battery includes a porous support body including a first face and a second face, and a cellulose nano fiber subjected to an ionic surface treatment located on at least one of the first face and the second face of the support body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.