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Material for electrolytic solution, ionic material-containing composition and use thereof

A technology of ionic materials and electrolytes, applied in the field of electrolyte materials, can solve the problems of undisclosed performance parameters, insufficient ionic conductivity, etc.

Inactive Publication Date: 2007-04-18
NIPPON SHOKUBAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no disclosure of an important performance parameter of the electrolyte of an electrochemical device, that is, the conductance temperature, and, because the properties such as ionic conductivity are not sufficient, it is still necessary to carry out an invention design to obtain a structure with excellent basic performance. materials that are ionic conductors

Method used

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  • Material for electrolytic solution, ionic material-containing composition and use thereof
  • Material for electrolytic solution, ionic material-containing composition and use thereof
  • Material for electrolytic solution, ionic material-containing composition and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0334] 1% by mass of ion-exchanged water was mixed into ethylmethylimidazolium dicyanamide to prepare an ion-conductive material. The ionic conductivity of the ion-conducting material was measured, and its ionic conductivity was 2.6×10 -2 S / cm(25℃), 1.3×10 -2 S / cm(0℃), 5.5×10 -3 S / cm(-20℃) and 2.7×10 -6 S / cm (-55°C). The results are shown in Table 1-1.

[0335] Using an impedance analyzer of SI1260 (trade name, product of Solartron Co., Ltd., in which a SUS electrode is used), the above ion conductivity was measured by a complex impedance method.

Embodiment 2～19 and comparative example 1～4

[0337] According to the same method as in Example 1, except for using the kinds and amounts of the ionic liquids and solvents shown in Table 1-1, the ion conductivity was measured. The results obtained are shown in Table 1-1.

[0338]

ionic liquid

solvent

Ionic conductivity (S / cm)

type

quality%

25℃

0℃

-20℃

-55℃

Example 1

EMImDCA

ion exchange water

1

2.6×10 -2

1.3×10 -2

5.5×10 -3

2.7×10 -5

Example 2

EMImDCA

ion exchange water

10

3.4×10 -2

2.2×10 -2

1.1×10 -2

1.2×10 -3

Example 3

EMImDCA

GBL

1

2.3×10 -2

1.1×10 -2

4.5×10 -3

5.8×10 -7

Example 4

EMImDCA

GBL

10

2.6×10 -2

1.1×10 -2

4.5×10 -3

5.2×10 -5

Example 5

EMImDCA

GBL

50

7.4×10 -2

4.4×10 -2

2.4×10 -2

4.2×10 -3

Example ...

Embodiment A

[0349] Ethylmethylimidazolium tricyanomethyl (EMImTCM) was dissolved in the mobile phase at 2% by mass, and the peak decrease rate after the heat resistance test was measured by LC (liquid chromatography) analysis. The results are shown in Table 1-2. In addition, the heat resistance test and LC analysis were performed under the following conditions. The peak reduction rate was measured in the above-mentioned manner.

[0350] (heat resistance test)

[0351] The sample was left at 150° C. for 50 hours using a drier called DNF-400 (trade name; manufactured by Yamato Scientific Co., Ltd.).

[0352] (LC analysis)

[0353] Measuring instrument: Manufactured by Tosoh Corporation

[0354] Detector: UV-8020 (UV absorption 254nm)

[0355] Mobile phase: 10% methanol in water

[0356] Current intensity (Current): 1.0 moles

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Abstract

An object of the present invention is to provide a material for an electrolytic solution having improved ionic conductivity and, showing excellent in low temperature property, being stable with time,and being electrochemically stable at a high potential, and an ionic material-containing composition exhibiting excellent fundamental performance such as electrochemical stability, and preferably usedin a variety of utilities. Another object of the present invention is to provide utilities thereof. The material for an electrolytic solution is the material containing an ionic compound, and the material comprises a cyano group-containing anion represented by the formula (1) and 1 to 99% by mass of a solvent in 100% by mass of the material for an electrolytic solution.

Description

technical field [0001] The present invention relates to materials for electrolytes, compositions containing ionic materials and uses thereof. More specifically, the present invention relates to materials for electrolytes that can be advantageously used in electrolytes as ionic conductors in electrochemical devices; compositions comprising ionic materials composed of cations and anions; comprising The ion conductive material of the composition, the ion conductive material is suitable for the material of the ion conductor; and the application items using the material for electrolyte and the ion conductive material, such as lithium secondary battery, electrolytic capacitor, Electric double layer capacitors, etc. Background technique [0002] Materials for electrolytes are widely used in various cells or batteries that utilize the phenomenon of ion conduction, such as primary batteries or primary batteries, lithium (ion) secondary batteries, fuel cells, and others Batteries or...

Claims

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Application Information

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IPC IPC(8): H01M10/40H01G9/035H01G9/038C07D207/16C07D233/28H01G11/54H01M10/0568
CPCY02E60/13Y02E60/12Y02E60/10
Inventor 水田圭一郎武部惠子
Owner NIPPON SHOKUBAI CO LTD
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