Binder composition for non-aqueous secondary battery positive electrode, composition for non-aqueous secondary battery positive electrode, positive electrode for non-aqueous secondary battery, and non-aqueous secondary battery
US11742487B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2018 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | May 23, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a binder composition for a non-aqueous secondary battery positive electrode, a composition for a non-aqueous secondary battery positive electrode, a positive electrode for a non-aqueous secondary battery, and a non-aqueous secondary battery that can favorably maintain the balance among the paste stability of the composition for a positive electrode prepared using the binder composition, the peel strength of the positive electrode mixed material layer formed using the composition for a positive electrode, and the output characteristics of the secondary battery using the positive electrode including the positive electrode mixed material layer. The binder composition comprises: a polymer; and an organic solvent, wherein the polymer contains at least one of a conjugated diene monomer unit and an alkylene structural unit, and contains a nitrile group-containing monomer unit, and solution turbidity of the binder composition for a non-aqueous secondary battery positive electrode is 1 or more and 80 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.