Super capacitor diaphragm by using polyoxyethylene polyoxypropylene for raising imbibition rate

A polyoxyethylene polyoxypropylene, supercapacitor technology, applied in hybrid capacitor separators, textiles and papermaking, non-woven fabrics, etc., can solve the problems of short life, low output, low strength, etc. High, high liquid absorption effect

Inactive Publication Date: 2017-04-19
TONGLING CITY START ELECTRONICS MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

"Preparation of PAN / PVDF-HFP supercapacitor separator by electrospinning method and its mechanical properties" The membrane is subjected to hot-pressing treatment. Although the performance of the obtained membrane material is improved compared with that of the commercial membrane, it still has the disadvantages of low strength, short life, and low output. It is necessary to further modify the electrospun membrane material to improve the performance of the membrane. thermal stability, mechanical properties

Method used

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Embodiment Construction

[0015] A supercapacitor diaphragm material with enhanced liquid absorption by polyoxyethylene polyoxypropylene, made of the following raw materials in parts by weight: polyvinylidene fluoride 80, polymethyl methacrylate 20, appropriate amount of DMF, nano boehmite 2, Silane coupling agent KH5500.8, appropriate amount of deionized water, glycerin 4, hydrosiloxane 2, glycidyl ether 4, poly(ethylene oxide-propylene oxide) 3, toluene appropriate amount, chloroplatinic acid 0.2.

[0016] According to claims 1, a polyoxyethylene polyoxypropylene enhanced liquid absorption supercapacitor diaphragm material is prepared by the following specific methods:

[0017] (1) After drying the nano-boehmite completely in a vacuum drying oven, mix it with silane coupling agent KH550 dissolved in 4 times the amount of deionized water. After ultrasonic dispersion for 30 minutes, heat it to 140°C and reflux for 90 minutes while stirring. Finish the reaction, centrifuge and stand still, wash the soli...

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Abstract

The invention discloses a super capacitor diaphragm by using polyoxyethylene polyoxypropylene for raising imbibition rate, and the material comprises the raw materials by parts of weight: 80-83 parts of polyvinylidene fluoride, 20-22 parts of polymethyl methacrylate, proper amount of DMF, 2-3 parts of nanometer boehmite, 0.8-1 part of silane coupling agent KH550, proper amount of deionized water, 4-5 parts of glycerin, 2-3 parts of hydrogenated siloxanes; 4-5 parts of glycidyl ether; 3-4 parts of poly (ethylene oxide, propylene oxide), proper amount of toluene, and 0.2-0.3 part of chloroplatinic acid. The prepared fiber diaphragm material has the advantages that the internal tunnel connectivity is good; the composition is uniform; the void fraction is high; a polyoxyethylene- polyoxypropylene extended chain is formed on the skeleton surface and in the tunnel; the strong interacting between the electrolyte and the groups are helpful for raising the absorbing capacity and stability of the electrolyte in the tunnel.

Description

technical field [0001] The invention relates to the technical field of supercapacitors, in particular to a supercapacitor diaphragm material with polyoxyethylene polyoxypropylene enhanced liquid absorption. Background technique [0002] Supercapacitor is a highly competitive energy storage device. Because it can realize fast charging, high current discharge, and has a charging life of more than 100,000 times, it plays an important role in some applications that require short-term high-rate discharge. . The power supply requirements of hybrid electric vehicles and electric vehicles have also aroused worldwide attention to supercapacitors, a new type of energy storage device. In the composition of supercapacitors, electrodes, electrolyte and separator paper play a decisive role in the performance of supercapacitors. At present, the electrodes and electrolytes of supercapacitors are research hotspots, but the research and attention on separators is not high. [0003] The sep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382D04H1/728H01G11/52
CPCD04H1/4382D04H1/728D10B2331/06H01G11/52Y02E60/13
Inventor 万广文
Owner TONGLING CITY START ELECTRONICS MFG
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