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

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

Example Embodiment

[0333] Example 1

[0334] 1% by mass of ion-exchanged water was mixed into ethyl methyl imidazolium dicyanamide to prepare an ion conductive material. Measure the ion conductivity of the ion conductive material, and the ion conductivity is 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] The above-mentioned ionic conductivity was measured by the complex impedance method using an impedance analyzer of SI1260 (trade name, a product of Solartron Co., Ltd., in which SUS electrode was used).

Example

[0336] Examples 2-19 and Comparative Examples 1-4

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

[0338]

[0339] Table 1 is as follows

[0340] EMImDCA: Ethyl methyl imidazolium dicyanamide

[0341] EMPyDCA: Ethylmethylpyrrolidinium dicyandiamide

[0342] EMImTCM: Ethyl methyl imidazolium melamine

[0343] MeMeImDCA: Methyl methyl imidazolium dicyanamide

[0344] TEMADCA: Triethyl Methyl Ammonium Dicyanamide

[0345] TMImDCA: Trimethylimidazolium Dicyanamide

[0346] GBL: γ-butyrolactone

[0347] EG: Ethylene glycol

Example Embodiment

[0348] Example A

[0349] Ethylmethylimidazolium tricyanomethide (EMImTCM) was dissolved in the mobile phase at 2% by mass, and the peak drop 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. Measure the peak drop rate by the above method.

[0350] (Heat resistance test)

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

[0352] (LC analysis)

[0353] Measuring instrument: manufactured by Tosoh

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

[0355] Mobile phase: 10% methanol aqueous solution

[0356] Current intensity (Current): 1.0 mole

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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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