Lithium iron phosphate (LFP) battery recycling
US12071677B2 · kind B2 · utility
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Key dates
| Filing date | Aug 2, 2022 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | Aug 2, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/84
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The inventions described herein provide methods and systems for recycling lithium iron phosphate batteries, including: adding an oxidizing agent to a recycling stream of lithium iron phosphate (LiFePO4) batteries to form a leach solution; filtering the leach solution to remove a residue and obtain a lithium rich solution; modifying pH of the lithium rich solution for filtering impurities and obtaining a purified Li solution; and adding a precipitant to the purified Li solution thereby precipitating a lithium compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.