| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide graphene through which ions can transfer in the direction perpendicular to a plane of the graphene. <P>SOLUTION: Multilayer graphene includes a plurality of graphenes stacked in a layered manner. The plurality of graphenes include a six-membered ring composed of carbon, a multi-membered ring which is a seven- or more-membered ring composed of carbon or carbon and oxygen, and oxygen bonded to a carbon atom constituting the six-membered ring or the multi-membered ring which is the seven- or more-membered ring, wherein the interlayer distance of the plurality of graphenes is larger than 0.34 nm and less than or equal to 0.5 nm, or preferably is 0.38 to 0.42 nm. <P>COPYRIGHT: (C)2013,JPO&INPIT |
