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Ion conductor and electrochemical display device utilizing the same

An ion conductor and electrochemical technology, applied in the field of electrochemical display elements, can solve the problems of low ion conductivity, easy leakage of electrolyte, and limitation of electrolyte solvent types, etc., and achieve the effect of high ion conductivity

Inactive Publication Date: 2009-10-28
DAINIPPON INK & CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the electrolyte is difficult to leak, the homogeneous gel electrolyte has a maximum retention capacity of about 5 times that of organic polymers, so it has the disadvantage of low ionic conductivity and cannot reach the ionic conductivity of the electrolyte itself.
On the other hand, structural gel electrolytes have the problem of easy electrolyte leakage
In addition, from the viewpoint of the compatibility between the organic polymer as the electrolyte solution holder and the solvent, there is a problem that the type of electrolyte solvent is limited depending on the type of organic polymer used.

Method used

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  • Ion conductor and electrochemical display device utilizing the same
  • Ion conductor and electrochemical display device utilizing the same
  • Ion conductor and electrochemical display device utilizing the same

Examples

Experimental program
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Effect test

preparation example Construction

[0053] (Preparation method of ion conductor)

[0054] The ionic conductors of the present invention can be prepared by a method comprising the steps of:

[0055] Synthesis steps of organic polymer microparticles: organic polymer microparticles are obtained through interfacial polycondensation that occurs when the organic solvent solution (A) contacts the aqueous solution (B). The organic solvent solution (A) contains dicarboxylic acid dihalides, dihalides At least one compound of the group consisting of haloformate and phosgene and an organic solvent, the aqueous solution (B) contains at least one metal compound of an alkali metal element and other metal elements, diamine and water; and

[0056] Impregnation step: impregnating the organic polymer fine particles with an electrolytic solution to impregnate the organic polymer fine particles with the electrolytic solution.

[0057] (Synthesis procedure of organic polymer microparticles)

[0058] The synthesis step of organic po...

Embodiment

[0146] The present invention will be described more specifically below by way of examples. "Parts" means "parts by weight" unless otherwise specified.

Synthetic example 1

[0147] (Synthesis Example 1) (Synthesis of Organic Polymer Microparticles; Organic Polymer: Polyamide, Inorganic Compound: Silica)

[0148] Add 1.58 parts of 1,6-diaminohexane and 9.18 parts of water glass No. 3 to 81.1 parts of ion-exchanged water, and stir at 25°C for 15 minutes to obtain a uniform and transparent aqueous solution (B). Under room temperature, this aqueous solution (B) is packed in the stirrer that Osterizer company manufactures, while stirring with 10000 revolutions per minute, drop the organic solution (A ). The resulting gel was crushed with a spatula and stirred at 10,000 rpm for 40 seconds. A solution obtained by dispersing the fibrous product obtained by this operation was filtered under reduced pressure on a filter paper with a pore diameter of 4 μm using a suction filter with a diameter of 90 mm. The product on the suction filter was dispersed in 100 parts of methanol, stirred for 30 minutes using a stirrer, and filtered under reduced pressure for c...

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Abstract

The present invention relates to an ion conductor and an electrochemical display element using the same. An ion conductor used between electrodes of an electrochemical display element or the like is required to have both high ion conductivity and a function as a separator. Also, polymer gel electrolytes are known as such ion conductors, but considering the compatibility of the organic polymer as the electrolyte solution holder with the solvent of the electrolyte solution, the type of solvent present in the electrolyte solution depends on the organic polymer used. The problem is limited by the type of polymer. The present invention solves the above problems by an ion conductor comprising: organic polymer fine particles containing 20 to 80% by weight of inorganic compound ultrafine particles, and an electrolytic solution impregnated in the organic polymer fine particles , the inorganic compound ultrafine particles have an average particle diameter of 500 nm or less, and the organic polymer particles have a specific surface area measured by the BET method of 30 m2 / g or more.

Description

technical field [0001] The present invention relates to an ion conductor and an electrochemical display element using the same. Background technique [0002] As a component used between the electrodes of batteries and electric double layer capacitors (Electric double layer capacitor), etc., a structural material that does not need to prevent short circuits between electrodes is being developed, and there is no fear of electrolyte leakage solid material. Materials used in them are required to have a high level of both high ion conductivity as an ion conductor, and both structural stability and processability as a separator. As such materials, intrinsic polymer electrolytes (all solid type) and polymer gel electrolytes are known. [0003] However, intrinsic polymer electrolytes have substantially low ionic conductivity (less than 10 -4 S / cm), therefore, the inherent polymer electrolyte used at room temperature has not been put into practical use. [0004] On the other hand...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/06C08K3/00C08L77/00G02F1/15G02F1/17
CPCY02E60/13
Inventor 中岛道也海老根俊裕川合一成齐藤直人
Owner DAINIPPON INK & CHEM INC