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Polymer electrolyte containing zwitter-ionic groups and redox groups and preparation method of polymer electrolyte

A zwitterion and polymer technology, applied in the field of electrochemistry, can solve the problems of inability to meet the use of solid-state supercapacitors, and achieve the effects of excellent electrochemical performance and simple preparation method.

Active Publication Date: 2020-12-08
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that current polymer electrolytes cannot meet the needs of solid-state supercapacitors, the purpose of the present invention is to provide a polymer electrolyte containing zwitterionic groups and redox groups; in addition, the present invention also provides the polymer electrolyte preparation method

Method used

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  • Polymer electrolyte containing zwitter-ionic groups and redox groups and preparation method of polymer electrolyte
  • Polymer electrolyte containing zwitter-ionic groups and redox groups and preparation method of polymer electrolyte
  • Polymer electrolyte containing zwitter-ionic groups and redox groups and preparation method of polymer electrolyte

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method for preparing a polymer electrolyte, comprising the steps of:

[0042] S1, prepare dimethyl sulfoxide (DMSO) / absolute ethanol=9 / 1 solution (S), pass nitrogen gas to remove oxygen for 2 hours in advance, and set aside;

[0043] S2, weigh 68.41mg of monomer II-1 and 295.27mg of monomer III-1 in reaction test tubes, deoxygenate them with double row tubes, add 1.5mL of S, and dissolve them into solution M;

[0044] S3, weigh 1.97mg of BPO in the reaction test tube, use a double-row tube to deoxygenate it, add 0.5ml of S, and dissolve it into a solution R;

[0045] S4, adding the solution R into the solution M, heating to 70°C, reacting for 8 hours, filtering, dialysis of the filtrate for 48 hours, and freeze-drying for 48 hours to obtain the polymer electrolyte I-1.

Embodiment 2

[0047] A method for preparing a polymer electrolyte, comprising the steps of:

[0048] S1, prepare dimethyl sulfoxide (DMSO) / absolute ethanol=8 / 1 solution (S), pass nitrogen gas to remove oxygen for 2 hours in advance, and set aside;

[0049] S2, weigh 73.91mg of monomer II-2 and 319.01mg of monomer III-2 in reaction test tubes, deoxygenate them with double row tubes, add 1.5mL of S, and dissolve them into solution M;

[0050] S3, weigh 2.13mg of BPO in the reaction test tube, use a double-row tube to deoxygenate it, add 0.5ml of S, and dissolve it into a solution R;

[0051] S4, add the solution R into the solution M, heat to 70° C., react for 12 hours, filter, dialyze the filtrate for 48 hours, and freeze-dry for 72 hours to obtain the polymer electrolyte I-2.

Embodiment 3

[0053] A method for preparing a polymer electrolyte, comprising the steps of:

[0054] S1, prepare dimethyl sulfoxide (DMSO) / absolute ethanol = 19 / 1 solution (S), pass nitrogen gas to remove oxygen for 2 hours in advance, and set aside;

[0055] S2, weigh 68.41mg of monomer II-3 and 590.54mg of monomer III-3 in reaction test tubes, deoxygenate them with double row tubes, add 1.5mL of S, and dissolve them into solution M;

[0056] S3, weigh 3.61mg of BPO in the reaction test tube, use a double-row tube to deoxygenate it, add 0.5ml of S, and dissolve it into a solution R;

[0057] S4, add the solution R into the solution M, heat to 60° C., react for 36 hours, filter, dialyze the filtrate for 36 hours, and freeze-dry for 24 hours to obtain the polymer electrolyte I-3.

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Abstract

The invention discloses a polymer electrolyte containing zwitter-ionic groups and redox groups. The structural general formula of the polymer electrolyte is shown in the specification. The polymer electrolyte disclosed by the invention has excellent electrochemical performance; the preparation method of the polymer electrolyte is simple and suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of electrochemistry, in particular to a polymer electrolyte containing zwitterionic groups and redox groups and a preparation method thereof. Background technique [0002] A supercapacitor is an energy storage device between traditional capacitors and batteries. It has the advantages of fast charging and discharging, high power density, long cycle life, etc. It can be used as an energy storage device in electric tools, hybrid vehicles, large pulse equipment and starting devices that have high requirements for power density. Electrolyte is an important part of supercapacitors and has a great influence on the overall performance of the device. [0003] Liquid electrolytes have played an important role in electrochemical energy storage in recent decades. The liquid electrolyte has high ionic conductivity and makes good contact with the electrodes. However, the use of liquid electrolyte has the risk of leakag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F230/02C08F220/34C08F220/38C08F220/60H01G11/56
CPCC08F230/02C08F220/38H01G11/56C08F220/34
Inventor 朱波朋海罗张楹川徐玉娟
Owner SHANGHAI UNIV
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