Lithium thionyl chloride battery electrolyte preparation system and preparation method thereof

Abstract

The invention discloses a lithium thionyl chloride battery electrolyte preparation system and a preparation method thereof. The system comprises a heating circulation reaction device, a cooling inflation reaction device and a liquid storage device, wherein the heating circulation reaction device is used for realizing dry environment batching operation and heating temperature control circulation impurity removal reaction; the cooling inflation reaction device is used for quickly cooling the electrolyte and quantitatively inflating sulfur dioxide; and the liquid storage device is used for realizing sealed storage and use circulation of the finished electrolyte. By means of the lithium thionyl chloride battery electrolyte preparation system, integrated operation and closed circulation of thionyl chloride feeding, electrolyte preparation and finished product electrolyte storage and conveying can be achieved; the production efficiency and the productivity can be improved, the labor cost can be reduced, the process control risk can be reduced, and the product quality and the quality consistency can be improved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to an electrolyte preparation system for lithium thionyl chloride batteries and a preparation method thereof. Background technique [0002] The traditional lithium thionyl chloride battery electrolyte is prepared manually with a small glass flask. First, in a dry environment (glove oven or drying room), the thionyl chloride is divided into glass flasks (3L) that are convenient for manual operation, and then press Add lithium salt (lithium tetrachloroaluminate) in proportion, mix and dissolve by manual stirring, add the lithium slices required for the impurity removal reaction, and then transfer the glass flask cover (auxiliary sealing ester) to a heating reflux chamber with an exhaust system, place On the heating furnace, open the bottle and transfer to the reflux device, after several hours of heating and reflux reaction to remove moisture impurities (purification), after reflux,...

AI Technical Summary

Problems solved by technology

It can be seen that the manual preparation of the electrolyte in the traditional small glass flask is complicated, repeated transportation, low production efficiency, high labor intensity, and a large number of operators are required; and the process flow requires multiple unsealed bottle caps, which are affected by environmental humidity and impurities in sealing materials. It is easy to introduce moisture impurities, affecting the quality and consistency of the electrolyte

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