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Supercapacitor electrodes with highly oriented and tightly packed graphene sheets and manufacturing process
Supercapacitor electrodes with highly oriented and tightly packed graphene sheets and manufacturing process
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机译：超级电容器电极，具有高度取向和紧密的石墨烯片和制造工艺
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摘要
A method for manufacturing an electrolyte impregnated layered graphene structure for use as a supercapacitor electrode is provided. The method includes: (a) preparing a graphene dispersion in which a plurality of isolated graphene sheets are dispersed in an electrolyte; and (b) subjecting the graphene dispersion to a forced assembly procedure, the plurality of graphene sheets In the step of assembling the electrolyte-impregnated layered graphene structure, the plurality of graphene sheets are alternately separated by thin electrolyte layers having a thickness of less than 5 nm, and the graphene sheets are substantially aligned along a desired direction. And when the layered structure is measured in the dried state of the layered structure from which the electrolyte has been removed, a physical density of 0.5 to 1.7 g / cm3 and 50 to 3,300 m2 / g And having a specific surface area. This method results in a supercapacitor having a large electrode thickness, high active mass loading, high tap density, and exceptional energy density. [Selection] Figure 3
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