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Manufacturing technology of electrolyte used for emergency power supply equipment

A technology for emergency power supply and production process, applied in the field of electrolyte, can solve the problems of high price, complex anhydrous lithium iodide process, low yield, etc., and achieve the effects of improving quality, easy mass industrial production, and reducing severity

Inactive Publication Date: 2017-09-29
HEFEI SHANGQIANG ELECTRIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the anhydrous lithium iodide obtained by this technology has the disadvantages of complicated process, low yield and high price.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation process for an electrolyte for emergency power equipment, comprising the following steps:

[0028] a. Dry the lithium iodide salt with crystal water in a vacuum environment at a drying temperature of 100°C;

[0029] b, adding the dried lithium iodide salt in step a into the organic solvent and stirring evenly, the stirring speed is 60r / min, to obtain the electrolyte mother liquor;

[0030] c, the electrolyte mother liquor is added in the electrolytic cell, adopts constant current electrolysis 8h, obtains crude electrolyte one;

[0031] d. Add a stabilizer to the crude electrolyte solution 1 and react at 46°C for 10 hours to obtain the crude electrolyte solution 2;

[0032] e. Add a dewatering agent to the crude electrolyte II, stir for 1 hour, and filter to obtain the finished electrolyte.

[0033] Step a is dried in a vacuum environment with a dew point lower than -10°C and an oxygen content of less than 1ppm, which is conducive to accelerating the dryi...

Embodiment 2

[0041] A preparation process for an electrolyte for emergency power equipment, comprising the following steps:

[0042] a. Dry the lithium iodide salt with crystal water in a vacuum environment at a drying temperature of 100°C;

[0043] b, adding the dried lithium iodide salt in step a into the organic solvent and stirring evenly, the stirring speed is 60r / min, to obtain the electrolyte mother liquor;

[0044] c, the electrolyte mother liquor is added in the electrolytic cell, adopts constant current electrolysis 5h, obtains crude electrolyte one;

[0045] d. Add a stabilizer to the crude electrolyte solution 1 and react at 40°C for 8 hours to obtain the crude electrolyte solution 2;

[0046] e. Add a dewatering agent to the crude electrolyte II, stir for 1 hour, and filter to obtain the finished electrolyte.

[0047] Step a is dried in a vacuum environment with a dew point lower than -10°C and an oxygen content of less than 1ppm, which is conducive to accelerating the dryin...

Embodiment 3

[0055] A preparation process for an electrolyte for emergency power equipment, comprising the following steps:

[0056] a. Dry the lithium iodide salt with crystal water in a vacuum environment at a drying temperature of 80°C;

[0057] b, adding the dried lithium iodide salt in step a into the organic solvent and stirring evenly, the stirring speed is 40r / min, to obtain the electrolyte mother liquor;

[0058]c, the electrolyte mother liquor is added in the electrolytic cell, adopts constant current electrolysis 5h, obtains crude electrolyte one;

[0059] d. Add a stabilizer to the crude electrolyte solution 1, and react at 40°C for 10 hours to obtain the crude electrolyte solution 2;

[0060] e. Add a dewatering agent to the crude electrolyte II, stir for 2 hours, and filter to obtain the finished electrolyte.

[0061] Step a is dried in a vacuum environment with a dew point lower than -10°C and an oxygen content of less than 1ppm, which is conducive to accelerating the dryi...

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PUM

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Abstract

The invention provides a manufacturing technology of an electrolyte used for emergency power supply equipment. The manufacturing technology comprises the following steps: a, putting a lithium iodide salt with crystal water in a vacuum environment for drying; b, adding the dried lithium iodide salt into an organic solvent for uniform stirring to obtain an electrolyte mother solution; c, adding the electrolyte mother solution into an electrolytic tank, and adopting a constant current for electrolysis for 5 to 8 h to obtain a crude electrolyte I; d, adding a stabilizer into the crude electrolyte I, and reacting for 8 to 10 h at the temperature of 40 to 60 DEG C to obtain a crude electrolyte II; and e, adding a water removing agent into the crude electrolyte II, stirring for 1 to 2 h, and filtering to obtain the electrolyte finished product. The manufacturing flow of the electrolyte is simple, the reaction condition is easy to control, the production cost is low, the electrolyte is stable in concentration performance and stable in viscosity, the internal instance of a battery can be effectively reduced, the using temperature range is wide, and the electrolyte is easy for large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of electrolytes, and in particular relates to a production process of electrolytes used in emergency power supply equipment. Background technique [0002] The electrolyte is an important part of the battery. It is an ionic conductor that conducts electricity between the positive and negative electrodes of the battery. Its own performance and the interface conditions formed with the positive and negative electrodes greatly affect the performance of the battery. An excellent battery non-aqueous electrolyte should meet the following requirements: (1) Good chemical stability, no chemical reaction with the positive and negative active materials and current collectors (generally aluminum foil and copper foil) in the battery; (2) Wide electrochemical stability window; (3) high ionic conductivity and low electronic conductivity; (4) suitable temperature range means high boiling point and low melting point; (5) safe ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0566H01M10/0568H01M6/16
CPCH01M6/166H01M10/0566H01M10/0568Y02E60/10
Inventor 程劲松
Owner HEFEI SHANGQIANG ELECTRIC TECH CO LTD
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