Negative electrode with gradient structure
US12431484B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 2021 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Jul 25, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A negative electrode of a lithium battery includes a current collector and a negative electrode layer disposed on a major surface of the current collector. The negative electrode layer exhibits a gradient structure including a proximal portion adjacent the major surface of the current collector and an opposite distal portion that defines a facing surface of the negative electrode layer. The negative electrode layer is configured such that a power density of the distal portion of the negative electrode layer is greater than that of the proximal portion of the negative electrode layer, and an energy density of the proximal portion of the negative electrode layer is greater than that of the distal portion of the negative electrode layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.