Double-sided supported thin-layer carbon sheet, preparation method, electrode, battery and supercapacitor

Abstract

The invention belongs to the technical field of supercapacitors, and discloses a double-sided supporting thin-layer carbon sheet, a preparation method, an electrode, a battery and a supercapacitor, which are stirred in sodium lauryl sulfate solution water, and styrene and 4-vinyl are added. Pyridine, react to obtain a milky white homogeneous emulsion; take the emulsion, add acrylonitrile, stir first, then heat, and continue the reaction, and obtain a white powder after demulsification; transfer the prepared polymer to a tube furnace and react in an air atmosphere , to obtain a pre-oxidized product; the pre-oxidized product is heated and kept warm under a nitrogen atmosphere, and the final product is obtained after cleaning. The present invention proposes for the first time a bidirectional anchoring method for the preparation of thin-layer carbon nanosheets; the prepared carbon nanosheets have a double-sided support structure, which fully exposes the defects; carbon materials used in supercapacitor electrode materials can achieve non-activated acrylonitrile-based carbon materials Highest performance; the invention features ease of handling, no dead volumes and high efficiency of the material.

Description

Double-sided supported thin-layer carbon sheet, preparation method, electrode, battery and supercapacitor technical field The invention belongs to supercapacitor technical field, relate in particular to a kind of double-sided supporting thin-layer carbon sheet, preparation method, electric electrodes, batteries and supercapacitors. Background technique At present, supercapacitors have remarkable characteristics such as fast charging and discharging speed, high power density and long cycle life. point of attention. High performance has always been the goal pursued in this field, and its performance mainly depends on the electrode material. Among the most commonly used The carbon-based electrode materials have always been the focus of research in this field and an important entry for improving and optimizing the performance of supercapacitors. point. In practical production applications, it is relatively easy to prepare high-quality specific capacitance materials by...

AI Technical Summary

Problems solved by technology

[0004] The difficulty in solving the above problems and defects is: in the preparation of carbon materials, the preparation of active sites with double-sided exfoliation is relatively complicated, and usually only materials with defective active sites on one side can be prepared.

In addition, the prepared carbon materials usually contain a large amount of dead volume, how to reduce the effective thickness of carbon is another difficulty

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