Surface-coated positive electrode material and preparation method therefor, and lithium ion battery
US11984586B1 · kind B1 · utility
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Key dates
| Filing date | Dec 29, 2023 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Dec 29, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed are a surface-coated positive electrode material and a preparation method therefor, and a lithium ion battery. The surface-coated cathode material contains a substrate and a coating layer coated on a surface of the substrate, and the coating layer has a bimodal distribution of characteristic peaks at 31°-35° of 2θ tested by X-Ray Diffraction (XRD); and a ratio Ib/Ia of a peak intensity Ib of a secondary peak to a peak intensity Ia of a primary peak in a bimodal distribution is within a range of 0.8-1, preferably within a range of 0.97-1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.