Electrode, nonaqueous electrolyte battery, and battery pack
US12191495B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2021 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Jan 4, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrode includes an active material-containing layer that contains active material particles and a binder containing a polymer. The active material particles contain a lithium-containing nickel-cobalt-manganese composite oxide represented by LiaNi(1−x−y)CoxMnyMzO2 where 0.9≤a≤1.2, 0<x≤0.5, 0<y≤0.5, 0<z≤0.1, x≥y, 0.4≤1−x−y≤0.8, and M is at least one element selected from B, Mg, Al, Si, Ca, Ti, Zn, Zr, Sn, and W. The polymer has a repeating unit derived from vinylidene fluoride and one or more peaks in a nuclear magnetic resonance spectrum with fluorine-19 as a detection nucleus are located in the range of −90 ppm or higher and −88 ppm or lower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.