Ternary precursor of lithium ion battery as well as preparation method and preparation device
US11735730B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Feb 9, 2023 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Feb 9, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ternary precursor of a lithium ion battery as well as a preparation method and preparation device thereof are provided. A chemical general formula of the ternary precursor is NixCoyMnz(OH)2, 0.5≤x≤0.9, 0.05≤y≤0.3, and x+y+z=1. A particle size D50 of a large-particle ternary precursor is 10.0-16.0 μm, a particle size D50 of a small-particle ternary precursor is 3.0-6.0 μm, and a span is 0.2-0.8. A nucleation and growth process of a crystal is regulated through a staged EDCF, a crystal particle size meeting specific requirements and compact particles without a cracking phenomenon can be obtained. A disc, inclined blades and an arc surface are combined, and an arc-shaped curved surface can effectively reduce a turbulence energy dissipation rate of a local area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.