Method for manufacturing graphene-coated object, negative electrode of secondary battery including graphene-coated object, and secondary battery including the negative electrode


Ontology type: sgo:Patent     


Patent Info

DATE

N/A

AUTHORS

Teppei Oguni , Takeshi Osada , Toshihiko Takeuchi

ABSTRACT

To form graphene to a practically even thickness on an object having an uneven surface or a complex surface, in particular, an object having a surface with a three-dimensional structure due to complex unevenness, or an object having a curved surface. The object and an electrode are immersed in a graphene oxide solution, and voltage is applied between the object and the electrode. At this time, the object serves as an anode. Graphene oxide is attracted to the anode because of being negatively charged, and deposited on the surface of the object to have a practically even thickness. A portion where graphene oxide is deposited is unlikely coated with another graphene oxide. Thus, deposited graphene oxide is reduced to graphene, whereby graphene can be formed to have a practically even thickness on an object having surface with complex unevenness. More... »

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