Polymer-metal ion complex gel electrolyte and preparation method and application thereof

A technology of gel electrolyte and metal ions, which is applied in the direction of capacitor electrolyte/absorbent, circuit, photovoltaic power generation, etc., can solve the problems of cumbersome gel electrolyte method and the inability to guarantee the contact performance of the interface between the electrolyte and the working electrode, so as to overcome the possibility of preparation Poor operability, excellent machinability, and simple process

Inactive Publication Date: 2012-08-08
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of preparing gel electrolyte is slightly cumbersome, and it cannot guarantee good interface contact between the electrolyte and the working electrode.

Method used

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  • Polymer-metal ion complex gel electrolyte and preparation method and application thereof
  • Polymer-metal ion complex gel electrolyte and preparation method and application thereof
  • Polymer-metal ion complex gel electrolyte and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Add 100 mL of toluene into a 250 mL three-necked flask, add 5 mL of 4-vinylpyridine and 20 mL of acrylonitrile into it under magnetic stirring, and control the temperature at 70°C under a nitrogen atmosphere. Azobisisobutyronitrile was added, and after 2 hours, the reaction was stopped and cooled. The product generated by the reaction was obtained by filtration, washed with toluene for 2 times, and then washed with anhydrous ether for 3 times. Put the treated product into a vacuum oven and dry at 50° C. for 48 hours to obtain a copolymer of 4-vinylpyridine and acrylonitrile. Wherein, the molar percentage of 4-vinylpyridine is 25%. The number average molecular weight of the obtained polymer was 4,000.

[0035] Get above-mentioned gained copolymer 0.015g, 0.16g EC, 0.04g PC, 0.0083g KI, 0.0015g I 2 Add it to a 5ml weighing bottle, stir to dissolve it, and then add 0.014g ZnI 2 , stirred to make it dissolve completely, and the polymer-metal ion complex gel electrolyte ...

Embodiment 2

[0038]Add 60 mL of toluene into a 100 mL three-necked flask, add 2 mL of 4-vinylpyridine and 8 mL of acrylonitrile into it under magnetic stirring, and control the temperature at 80°C under a nitrogen atmosphere. Azobisisobutyronitrile was added, and after 2 hours, the reaction was stopped and cooled. The product generated by the reaction was obtained by filtration, washed with toluene for 2 times, and then washed with anhydrous ether for 4 times. Put the treated product into a vacuum oven and dry at 40° C. for 40 hours to obtain a copolymer of 4-vinylpyridine and acrylonitrile. Wherein, the molar percentage of 4-vinylpyridine is 26%, and the data molecular weight of the obtained polymer is 4000.

[0039] Get above-mentioned gained copolymer 0.045g, 0.48g EC, 0.12g PC, 0.0249g KI, 0.0045g I 2 Add it to a 5ml weighing bottle, stir to dissolve it, and then add 0.06g ZnI 2 , stirred to make it dissolve completely, and the polymer-metal ion complex gel electrolyte was obtained....

Embodiment 3

[0042] Add 250 mL of toluene into a 500 mL three-necked flask, add 10 mL of 4-vinylpyridine and 40 mL of acrylonitrile into it under magnetic stirring, and control the temperature at 85°C under a nitrogen atmosphere. Benzoyl peroxide was added, and after 2.5 hours, the reaction was stopped and cooled. The product generated by the reaction was obtained by filtration, washed with toluene for 4 times, and then washed with anhydrous ether for 5 times. Put the treated product into a vacuum oven and dry at 55° C. for 56 hours to obtain a copolymer of 4-vinylpyridine and acrylonitrile. Wherein, the molar percentage of 4-vinylpyridine is 24%, and the number average molecular weight of the obtained polymer is 4000.

[0043] Get above-mentioned gained copolymer 0.015g, 0.16g EC, 0.04g PC, 0.0083g KI, 0.0015g I 2 Add it to a 5ml weighing bottle, stir to dissolve it, and then add 0.009g ZnI 2 , stirred to make it dissolve completely, and the polymer-metal ion complex gel electrolyte wa...

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Abstract

The present invention discloses a polymer-metal ion complex gel electrolyte and preparation method and application thereof. The polymer-metal ion complex provided by the present invention is prepared by the complexation of polymers and polyvalent metal salts. The polymer gel electrolyte prepared by the polymer-metal ion complex comprises polymers, polar small molecular plasticizers, polyvalent metal salts, monovalent metal salts, and iodine. The present invention also discloses a preparation method of the metal ion complex gel electrolyte. The polymer-metal ion complex gel electrolyte provided by the present invention overcomes the defects of poor maneuverability of electrolyte preparations and poor contact between interfaces in the prior art. The gel electrolyte is especially applicable to prepare dye-sensitized solar cells, which allows the photoelectric conversion efficiency of dye-sensitized solar cells to be above 5%.

Description

technical field [0001] The invention relates to a kind of electrolyte and its preparation method and application, in particular to a polymer-metal ion complex gel electrolyte and its preparation method and application. Background technique [0002] Polymer gel electrolyte is a new type of gel electrolyte material that has been developed rapidly in recent years. It can be used to make thin-film batteries with high space utilization. It can overcome the problems of easy flow and leakage of liquid electrolytes, and can prolong the battery life. service life. J.H.Wu, Z.Lan et al reported a gel electrolyte prepared from a polyacrylic acid-polyoxyethylene alcohol blend system and used it in dye-sensitized solar cells, achieving better photoelectric conversion efficiency (Adv.Mater ., 2007, 19, 4006 A Novel Thermosetting Gel Electrolyte for Stable Quasi-Solid-State Dye-Sensitized Solar Cells, J.H.Wu, Z.Lan, J.M.Lin, M.L.Huang, S.C.Hao, T.Sato, S.Yin). However, in this system, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F226/06C08F226/10C08F220/48C08F218/08C08F220/12C08F8/44H01G9/022H01G9/20H01M14/00H01L51/44H01L51/48
CPCY02E10/542Y02E10/50Y02E10/549
Inventor 向万春方世璧林原
Owner INST OF CHEM CHINESE ACAD OF SCI
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