Preparation method of hexafluoroisopropyl straight-chain carbonate lithium battery additive
The invention discloses a preparation method of a hexafluoroisopropyl straight-chain carbonate lithium battery additive, which comprises the following steps: mixing hexafluoroisopropanol or a mixture of hexafluoroisopropanol, saturated monohydric alcohol and water with triphosgene, controlling the r...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a preparation method of a hexafluoroisopropyl straight-chain carbonate lithium battery additive, which comprises the following steps: mixing hexafluoroisopropanol or a mixture of hexafluoroisopropanol, saturated monohydric alcohol and water with triphosgene, controlling the reaction temperature to be lower than 30 DEG C under the catalysis of organic amine and the action of an acid-binding agent, and reacting for 2-3 hours to obtain the hexafluoroisopropyl straight-chain carbonate lithium battery additive. And reacting to obtain a mixed solution containing hexafluoroisopropyl straight-chain carbonate, washing with water, drying, and distilling and purifying the mixed solution containing hexafluoroisopropyl straight-chain carbonate to obtain hexafluoroisopropyl straight-chain carbonate. The method has the characteristics of safe and simple process, low energy consumption, good yield and high purity.
本发明公开了一种六氟异丙基直链碳酸酯锂电添加剂的制备方法，其制备步骤为：将六氟异丙醇或六氟异丙醇、饱和一元醇和水三者的混合物，与三光气混合，在有机胺催化和缚酸剂作用下，控制反应 |
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