Nonaqueous electrolyte secondary battery
US10707517B2 · kind B2 · utility
7Cited by
0References
6Claims
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Key dates
| Filing date | Dec 18, 2018 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Jan 22, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M4/525
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A nonaqueous electrolyte secondary battery in accordance with an embodiment of the present invention includes: a separator including a polyolefin porous film; a porous layer containing a polyvinylidene fluoride-based resin; and a positive electrode plate and a negative electrode plate each of which has a capacitance in a specific range, the polyolefin porous film having a parameter X of not more than 20, and the polyvinylidene fluoride-based resin containing not less than 35.0 mol % of an α-form polyvinylidene fluoride-based resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.