Electrolyte additive for secondary battery, preparation method therefor, and electrolyte composition and secondary battery, which comprise additive
US12255287B2 · kind B2 · utility
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26Claims
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Key dates
| Filing date | May 22, 2020 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Feb 16, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
According to an embodiment of the present inventive concept, an electrolyte additive represented by the compounds of Chemical Formulas 1 to 4 may be provided. In addition, according to another embodiment of the present inventive concept, a method for preparing an electrolyte additive of the compounds of Chemical Formulas 1 to 4 may be provided, wherein the method for preparing the electrolyte additive includes reacting hexafluorophosphate and 2-monofluoromalonic acid, further adding an HF scavenger to the mixed solution produced by the reaction, and concentrating and drying the reaction solution obtained therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.