Method for recovering lithium precursor from waste lithium secondary battery positive electrode material
US12258279B2 · kind B2 · utility
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Key dates
| Filing date | Nov 30, 2021 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Nov 30, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/84
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for reducing waste by recovering a lithium precursor including: a) mixing a waste lithium secondary battery positive electrode material with urea to prepare a first mixture; b) firing the first mixture to prepare a second mixture; and c) subjecting the second mixture to water washing to obtain lithium hydroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.