Electron collector structure and lithium battery containing the same

An electron collector structure, comprising:

• a conductive thin film;
• and
• a graphene layer consisting of one or more graphene sheets, the graphene layer partially coated on a top surface of the conductive thin film such that a portion of the conductive thin film is not coated by the graphene layer, and
• an electrode active material layer disposed on the graphene layer and directly contacting the portion of the conductive thin film that is not coated by the graphene layer;
• wherein the graphene layer is coated on an area in the range of about 50% or less of the top surface of the conductive thin film, and wherein the thickness of the graphene layer is less than 200 nm.