Preparation method of positive electrode material of lithium battery
US11848444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2020 |
| Grant date | Dec 19, 2023 |
| Priority date | — |
| Expiry date | Jun 26, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A preparation method of a positive electrode material of a lithium battery is provided, including mixing a compound containing at least one ethylenically-unsaturated group and one carbonyl group or a derivative thereof and a Ni-rich oxide of lithium and transition metal to react. The compound containing at least one ethylenically-unsaturated group and one carbonyl group is selected from a group consisting of a maleimide-based compound, an acrylate-based compound, a methacrylate-based compound, an acrylamide-based compound, a vinylamide-based compound, and a combination thereof, and the Ni-rich oxide of lithium and transition metal is represented by formula I, LiNixMyO2 Formula Iwherein x+y=1, 1>x≥0.5, and M is at least one transition metal element except Ni.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.