Preparation method of porous sodium iron phosphate used as sodium ion battery cathode material
US12012331B2 · kind B2 · utility
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Key dates
| Filing date | Aug 25, 2022 |
| Grant date | Jun 18, 2024 |
| Priority date | — |
| Expiry date | Aug 25, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a preparation method of porous sodium iron phosphate used as a sodium ion battery cathode material, which includes: mixing ferrous nitrate, silver nitrate and a reducing agent to prepare a mixed solution, adding the mixed solution dropwise to a carbonate solution for reaction to obtain a precipitate, mixing the precipitate with sodium dihydrogen phosphate and sodium iodide and then grinding, sintering the ground material under the condition of air isolation, and soaking the sintered material in an organic solvent to obtain porous sodium iron phosphate used as a sodium ion battery cathode material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.