| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide lithium ion-permeable graphene which can be used in electric equipment. <P>SOLUTION: The preferred graphene has a defect formed by bonding of a carbon atom to an oxygen atom and the number density of the defect is 0.0001-0.1. Since the graphene has the defect at the number density, the oxygen concentration of the graphene is 0.3-30 atomic%. Since such graphene is highly permeable to lithium ions, even when the surface of an electrode or an active material is coated with the graphene, migration of lithium ions is not hindered. While the graphene can inhibit the reaction of the electrode or the active material with an electrolyte. <P>COPYRIGHT: (C)2013,JPO&INPIT |
