Positive electrode active material precursor for lithium secondary battery, and method of preparing the same
US11973222B2 · kind B2 · utility
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Key dates
| Filing date | Dec 7, 2018 |
| Grant date | Apr 30, 2024 |
| Priority date | — |
| Expiry date | Jan 3, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A positive electrode active material precursor having a uniform particle size distribution and represented by Formula 1, wherein a percentage of fine powder with an average particle diameter (D50) of 1 μm or less is generated when the positive electrode active material precursor is rolled at 2.5 kgf/cm2 is less than 1%, and an aspect ratio is 0.93 or more, and a method of preparing the positive electrode active material precursor [NixCoyM1zM2w](OH)2 [Formula 1]
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.