Positive electrode composition for lithium ion secondary batteries, positive electrode for lithium ion secondary batteries, and lithium ion secondary battery
US12176515B2 · kind B2 · utility
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Key dates
| Filing date | Sep 28, 2018 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Jul 31, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
According to various aspects of the present invention, a positive electrode composition for a lithium-ion secondary battery includes an active material capable of inserting and extracting lithium ions, and a conductor, wherein the active material is a lithium-nickel-cobalt-manganese complex oxide; the conductor is a carbon black and carbon nanotubes; the carbon black has a BET specific surface area of 100 to 400 m2/g, and a DBP absorption of 210 to 380 ml/100 g; and the carbon nanotubes have an average diameter of 7 to 15 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.