Preparation method of novel staggered communication nanowire supercapacitor electrode

Abstract

The invention discloses a preparation method of a novel staggered communication nanowire supercapacitor electrode, and belongs to the technical field of capacitor electrodes. The method comprises thefollowing steps: S1, preparing a bacterial cellulose solution with the concentration of 0.5%; S2, taking the prepared bacterial cellulose solution; freeze drying treatment, preparing the bacterial cellulose aerogel; S3, placing the obtained bacterial cellulose aerogel under a hot press for hot pressing, to prepare the compact bacterial cellulose aerogel; S4, putting the obtained compact bacterialcellulose aerogel into a vacuum tube furnace for carbonization treatment to prepare a compact micro supercapacitor electrode; and S5, compounding the obtained compact micro supercapacitor electrode with the sulfuric acid-PVA electrolyte to prepare the nanowire supercapacitor with high energy density. According to the invention, the density of the nanowire can be regulated and controlled, and the area loading capacity and porosity of the nanowire can be accurately regulated and controlled, so that the supercapacitor with high energy density and high power surface density is obtained.

Description

technical field [0001] The invention relates to the technical field of capacitor electrodes, in particular to a preparation method of a novel interlaced nanowire supercapacitor electrode. Background technique [0002] Two conductors that are close to each other, with a layer of non-conductive insulating medium in between, constitute a capacitor. A capacitor stores charge when a voltage is applied between its two plates. The capacitance of a capacitor is numerically equal to the ratio of the amount of charge on a conductive plate to the voltage between the two plates. The electrode is a component in a capacitor that is used as a conductive medium (solid, gas, vacuum or electrolyte solution ) The two ends of the input or output current. The pole where the current is input is called the anode or positive pole, and the pole where the current is released is called the cathode or negative pole. [0003] With the rapid development of electronic information technology, the replac...

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Problems solved by technology

[0004] In the traditional preparation of capacitor electrodes, the density of nanowires cannot be adjusted after preparation, and it is difficult to precisely control their area loading and porosity, making it difficult to prepare supercapacitors with high energy density and high power surface density. Therefore, it is urgent Need a kind of preparation method of supercapacitor electrode with high energy density and high power surface density

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