Electrode assembly, battery cell, battery, and manufacturing method and device for electrode assembly
US12266765B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2022 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | Jun 20, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An embodiment of the present application provides an electrode assembly, a battery cell, a battery, and an electrode assembly manufacturing method and device, which belong to the technical field of batteries. The electrode assembly includes a positive electrode plate and a negative electrode plate, the positive electrode plate and the negative electrode plate being wound in a winding direction and forming a winding structure. The positive electrode plate comprises a plurality of first active substance layer regions and at least one first inactive substance layer region; and in an axial direction of the winding structure, the first inactive substance layer region is located between two adjacent first active substance layer regions, wherein, the first inactive substance layer region is provided with a first guide flow through hole, and the first guide flow through hole is configured to penetrate both sides in a thickness direction of the positive electrode plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.