Binder composition for secondary battery positive electrode, slurry composition for secondary battery positive electrode and method of producing same, positive electrode for secondary battery, and secondary battery
US11742489B2 · kind B2 · utility
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Key dates
| Filing date | Dec 14, 2018 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | Nov 9, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A binder composition for a secondary battery positive electrode contains a polymer including a nitrile group-containing monomer unit, an aromatic vinyl monomer unit, a hydrophilic group-containing monomer unit, a conjugated diene monomer unit, and a linear alkylene structural unit having a carbon number of 4 or more. The aromatic vinyl monomer unit is included in the polymer in a proportion of not less than 30.0 mass % and not more than 60.0 mass %. The polymer has an iodine value of not less than 60 mg/100 mg and not more than 150 mg/100 mg.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.