The present invention relates to a graphene sheet and a transparent electrode, and an active layer including the same, and a display device, an electronic device, an optoelectronic device, a battery, a solar cell, and a dye-sensitized solar cell including ...

Disclosed are a positive active material for a rechargeable lithium battery that includes: a core including a lithium metal composite oxide having a layered structure; and a shell including a lithium metal composite oxide having a layered structure and hav...