Electrode, electrode group, battery, and battery pack
US12040486B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2021 |
| Grant date | Jul 16, 2024 |
| 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
According to one embodiment, an electrode is provided. The electrode includes a current collector and an active material-containing layer formed on the current collector. The active material-containing layer contains a lithium nickel cobalt manganese composite oxide and a lithium cobalt composite oxide. Pore size distribution obtained by mercury intrusion porosimetry for the active material-containing layer has a first peak top indicating a highest intensity I1 within a pore size range of from 0.1 μm to 1 μm and a second peak top indicating an intensity I2 which is a second highest intensity after the highest intensity I1 within the pore size range of from 0.1 μm to 1 μm. A pore size at the first peak top is smaller than a pore size at the second peak top.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.