Abstract:
본원은, 폐그래파이트를 이용한 그래핀 산화물의 제조 방법에 관한 것으로서, 구체적으로, 그래파이트 및 금속을 포함하는 분말을 소결하고; 상기 소결된 분말을 산처리 및 전기 분해한 후 폐그래파이트를 분리하고; 상기 분리된 폐그래파이트에 산 및 산화제를 첨가하여 산화물을 제조하고; 및, 상기 산화물을 열처리하여 그래핀 산화물을 수득하는 것을 포함하는, 폐그래파이트를 이용한 그래핀 산화물의 제조 방법에 관한 것이다.
Abstract:
Disclosed are an electrode structure having a roll shape, an electrode and an electric device applying the same, and a method for manufacturing the electrode structure. The disclosed electrode structure has a structure of a graphene film having a nano material dispersed on at least one side wound in a roll shape. The electrode structure can have a high electrode density while securing a space making the diffusion of an electrolyte ion between the contact surfaces of the graphene film easy, and can be stably maintained in a shape of being vertically oriented on a current collector when applied to an electrode of an energy storage device such as a supercapacitor.
Abstract:
The present application relates to a coagulated graphene oxide and a producing method thereof, a coagulated graphene and a producing method thereof, and a coagulated nitrogen-doped graphene and a manufacturing method thereof. The manufacturing method of coagulated graphene oxide includes: a step of dispersing the graphene oxide in an organic solvent; and a step of forming the graphene oxide coagulated in an antisolvent by adding the antisolvent to the dispersed graphene oxide.