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Nonaqueous solvent, nonaqueous electrolytic solution, and battery using the nonaqueous electrolytic solution

A non-aqueous electrolyte and non-aqueous solvent technology, applied in secondary batteries, circuits, electrical components, etc., can solve the problems of low solubility and difficulty in providing non-aqueous electrolytes for battery systems, and achieve the effect of improving solubility

Active Publication Date: 2020-12-04
YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the solubility of lithium halide in the solvents of the above-mentioned carbonates and ethers is very low, making it difficult to provide a non-aqueous electrolyte effectively used in battery systems

Method used

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  • Nonaqueous solvent, nonaqueous electrolytic solution, and battery using the nonaqueous electrolytic solution
  • Nonaqueous solvent, nonaqueous electrolytic solution, and battery using the nonaqueous electrolytic solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0098] Embodiment 1 prepares non-aqueous electrolyte solution 1

[0099] 1. Take 2.4g propylene carbonate (PC) into the glass bottle,

[0100] 2. Weigh 1.5g methyl carbamate,

[0101] 3. At 23°C, use magnetic stirring to completely dissolve methyl carbamate in propylene carbonate,

[0102] 4. take by weighing 0.94g lithium iodide (LiI), make the final concentration of lithium iodide in the non-aqueous electrolytic solution 1 after preparation be 3.5mol / L,

[0103] 5. At 23°C, use magnetic stirring for 2 hours to completely dissolve lithium iodide in the mixed system of propylene carbonate and methyl carbamate to prepare a clear non-aqueous electrolyte solution 1, indicating that the concentration is as high as 3.5mol / L lithium iodide can be fully dissolved in the mixed system of propylene carbonate and methyl carbamate.

Embodiment 2

[0104] Embodiment 2 prepares non-aqueous electrolyte solution 2

[0105] 1. Take 2.4g propylene carbonate (PC) into the glass bottle,

[0106] 2. Weigh 1.2g methyl carbamate,

[0107] 3. At 23°C, use magnetic stirring to completely dissolve methyl carbamate in propylene carbonate,

[0108] 4. take by weighing 0.53g lithium iodide (LiI), make the final concentration of lithium iodide in the non-aqueous electrolytic solution 2 after preparation be 2mol / L,

[0109] 5. At 23°C, use magnetic stirring for 2 hours to completely dissolve lithium iodide in the mixed system of propylene carbonate and methyl carbamate to prepare a clear non-aqueous electrolyte solution 2, indicating that the concentration is as high as 2mol / Lithium iodide of L can be fully dissolved in the mixed system of propylene carbonate and methyl carbamate.

Embodiment 3

[0110] Embodiment 3 prepares nonaqueous electrolytic solution 3

[0111] 1. Take 2.4g propylene carbonate (PC) into the glass bottle,

[0112] 2. Weigh 0.75g methyl carbamate,

[0113] 3. At 23°C, use magnetic stirring to completely dissolve methyl carbamate in propylene carbonate

[0114] 4. take by weighing 0.40g lithium iodide (LiI), make the final concentration of lithium iodide in the non-aqueous electrolytic solution 3 after preparation be 1.5mol / L,

[0115] 5. At 23°C, use magnetic stirring for 2 hours to completely dissolve lithium iodide in the mixed system of propylene carbonate and methyl carbamate to prepare a clear non-aqueous electrolyte solution 3, indicating that the concentration is as high as 1.5mol / L lithium iodide can be fully dissolved in the mixed system of propylene carbonate and methyl carbamate.

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Abstract

The invention belongs to a non-aqueous solvent, a non-aqueous electrolyte and a battery employing the non-aqueous electrolyte. The non-aqueous solvent is prepared by mixing carbonate with carbamate as a solvent; and the solubility of a metal halide AX in the non-aqueous solvent can be greatly improved, so that the non-aqueous electrolyte employing the metal halide AX (especially alkali metal halide) as the electrolyte can be prepared.

Description

[0001] This application claims the priority of Chinese patent application 201410240608.1 (the application date is May 30, 2014, and the title of the invention is non-aqueous solvent, non-aqueous electrolyte, and a battery utilizing the non-aqueous electrolyte). technical field [0002] The present invention relates to a nonaqueous solvent, a nonaqueous electrolytic solution, and a nonaqueous electrolyte battery using the nonaqueous electrolytic solution. Background technique [0003] An electrolytic solution used in a nonaqueous electrolyte battery is usually mainly composed of an electrolyte and a nonaqueous solvent. Currently commonly used non-aqueous electrolyte battery electrolytes (non-aqueous electrolytes) mostly use one or several carbonates and ethers as solvents. [0004] The electrolyte (conductive salt) of the non-aqueous electrolyte currently used is mostly PX 6 Salts (X can be F, Cl, Br, I), AsX 6 Salts (X can be F, Cl, Br, I), perhalide salts, organometallic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/0569H01M10/0525H01M10/054
CPCY02E60/10
Inventor 水泽厚志赵彦彪陈瑞
Owner YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
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