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Trimethylsilyl-containing propynyl phosphate compound and preparation method and application thereof

A technology of trimethylsilylpropynyl phosphate and silylpropynyl phosphate, applied in silicon organic compounds, phosphorus organic compounds, chemical instruments and methods, etc., can solve the problems of high cost and affecting the conductivity of electrolyte , to achieve the effects of reducing corrosion, improving storage and cycle performance, and simple synthesis method

Active Publication Date: 2020-11-13
TIANMU LAKE INST OF ADVANCED ENERGY STORAGE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When adding many types of additives, not only the cost is high, but also the conductivity of the electrolyte will be affected

Method used

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  • Trimethylsilyl-containing propynyl phosphate compound and preparation method and application thereof
  • Trimethylsilyl-containing propynyl phosphate compound and preparation method and application thereof
  • Trimethylsilyl-containing propynyl phosphate compound and preparation method and application thereof

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preparation example Construction

[0043] The trimethylsilyl propynyl phosphate compound of the present invention can be obtained by such as figure 1The shown preparation method process obtains, and main steps comprise:

[0044] In step 110, tetrahydrofuran, trimethylsilylpropynol, triethylamine, and phosphorus trichloride or phosphorus oxychloride are pretreated respectively.

[0045] Specifically, the tetrahydrofuran is heated and distilled, while using metal sodium to dry and remove water, so that the purity of tetrahydrofuran is greater than 99.9%, and the water content is reduced to below 50ppm;

[0046] Heating and fractionating triethylamine to obtain a colorless and transparent triethylamine solution, and then adding activated 4A molecular sieves to make the moisture content of triethylamine lower than 50ppm;

[0047] Add trimethylsilylpropynol, phosphorus trichloride or phosphorus oxychloride to the activated 4A molecular sieve respectively, so that the moisture content of trimethylsilylpropynol, phos...

Embodiment 1

[0060] This embodiment provides a trimethylsilyl propynyl phosphate compound

[0061] Its preparation concrete reaction principle is as follows:

[0062]

[0063] Concrete preparation steps are as follows:

[0064] (1) Raw material pretreatment: heating and distilling tetrahydrofuran, and drying and removing water by using sodium metal at the same time, so that the purity of tetrahydrofuran is greater than 99.9%, and the water content is reduced to below 50ppm; triethylamine is heated and fractionated to obtain a colorless and transparent triethylamine solution, and then Add activated 4A molecular sieve to make triethylamine (Et3N) moisture lower than 50ppm; The moisture content is less than 50ppm.

[0065] (2) The preparation reaction of the silicon-containing benzene sulfonate compound in this embodiment is carried out in an inert atmosphere, and 50 mL of tetrahydrofuran is added after the reactor is filled with an inert gas;

[0066] (3) 0.3mol of trimethylsilyl pro...

Embodiment 2

[0072] This embodiment provides a trimethylsilyl propynyl phosphate compound

[0073] Its preparation concrete reaction principle is as follows:

[0074]

[0075] Concrete preparation steps are as follows:

[0076] (7) Raw material pretreatment: heating and distilling tetrahydrofuran, drying and removing water with sodium metal at the same time, so that the purity of tetrahydrofuran is greater than 99.9%, and the water content is reduced to below 50ppm; triethylamine is heated and fractionated to obtain a colorless and transparent triethylamine solution, and then Add activated 4A molecular sieve to make triethylamine (Et3N) moisture lower than 50ppm; The moisture content is less than 50ppm.

[0077] (8) The preparation reaction of the silicon-containing benzene sulfonate compound in this embodiment is carried out in an inert atmosphere, and 50 mL of tetrahydrofuran is added after the reactor is filled with an inert gas;

[0078] (9) 0.3mol of trimethylsilyl propynyl al...

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Abstract

The invention relates to a trimethylsilyl-containing propynyl phosphate compound and a preparation method and application thereof, the structural general formula of the trimethylsilyl-containing propynyl phosphate compound is shown in the specification, and R1 and R2 are selected from one of Si atom-containing compounds, alkane groups, aryl groups or heteroaryl groups.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a trimethylsilyl propynyl phosphate compound and a preparation method and application thereof. Background technique [0002] Since the industrial revolution, fossil energy such as oil, coal, and natural gas has played an indispensable role in people's daily production and life. However, with the massive exploitation and use of fossil energy on the earth, its storage capacity is decreasing year by year, leading to energy shortages. It has become one of the two major problems that the world has to face, so people pay more and more attention to the development and utilization of renewable energy and new energy. Renewable energy such as solar energy, wind energy, and geothermal energy are easily restricted by the natural environment and climate, and cannot be efficiently applied to people's production and life. Lithium-ion batteries have been widely used due to their high v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/09C07F9/141C07F7/08H01M10/0567H01M10/0525H01M10/058H01M10/0585H01M10/42
CPCC07F9/092C07F9/1411C07F7/0834H01M10/0567H01M10/0525H01M10/058H01M10/0585H01M10/4235H01M2220/10H01M2220/20H01M2300/0091H01M2300/0025Y02E60/10Y02P70/50
Inventor 黄建李立飞
Owner TIANMU LAKE INST OF ADVANCED ENERGY STORAGE TECH CO LTD
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