Cobalt material with multi-sheet stacked structure for negative electrode of supercapacitor and preparation method thereof

A technology of supercapacitors and stacked structures, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double layer capacitors, etc. It can solve the problems of unfavorable ion transport in the electrolyte, poor stability of the connection state, and small gap spacing, etc., to achieve improved connectivity. State and stability, ease of material desorption, and the effect of preventing agglomeration
CN108417405BActive Publication Date: 2019-09-03UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UNIV OF ELECTRONIC SCI & TECH OF CHINA
Publication Date
2019-09-03

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Abstract

The invention discloses a cobalt material with a multi-sheet stacked structure used for the negative electrode of a supercapacitor and a preparation method thereof, which belongs to the field of nanocomposite material preparation and solves the problem of poor connectivity between sheets, poor stability, and small gap spacing caused by the existing preparation method The problem. The technical scheme that the present invention adopts is as follows: a kind of preparation method of the cobalt material of multi-sheet stacked structure that is used for supercapacitor negative pole, graphene, Co(NO3) 2, urea, NH4F powder, hexadecyl trimethyl bromide Ammonium chloride and ethanol are added to water and mixed evenly, then reacted at high temperature to obtain the first precipitate; the first precipitate is washed and dried in turn to obtain the solid of graphene and cobalt composite material; the solid of graphene and cobalt composite material After being added to the ionized water for mixing, it is added to the chloride ion solution to react to obtain the second precipitate; the second precipitate is washed and dried in sequence to obtain a cobalt material with a multi-sheet stacked structure. The invention is used for preparing negative pole material of supercapacitor.
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Description

technical field

[0001] The invention discloses a method for preparing a cobalt material with a multi-sheet stacked structure used for the negative electrode of a supercapacitor, which is used for preparing the negative electrode material of a supercapacitor, and belongs to the field of nanocomposite material preparation. Background technique

[0002] With the continuous use of fuel vehicles and fossil fuels around the world, the resulting environmental problems have become increasingly prominent, and the news of banning the sale of fuel vehicles is also constantly entering people's field of vision. At present, countries that have proposed a timetable for banning the sale of fuel vehicles include Norway, the Netherlands, Germany, the United Kingdom, France, and India. The Ministry of Industry and Information Technology of China proposed at the TEDA Forum held on September 9, 2017 that China is also actively formulating a ban on the sale of fuel vehicles. This initiative shows...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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