Positive electrode active material precursor for lithium secondary battery, and method of preparing the same
US12327869B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2024 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Mar 28, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of preparing a positive electrode active material precursor includes forming positive electrode active material precursor particles while adding a reaction solution including a transition metal-containing solution, an ammonium ion-containing solution, and a basic aqueous solution to a reactor with a filtration device installed therein. The method further includes performing continuous concentration in which the reaction solution is added while continuously discharging a portion of the reaction solution in the reactor out of the reactor using the filtration device when the reactor is full, wherein a concentration of a solid content in the reactor is increased at a constant rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.