Samsung Electronics Co., Ltd.

Corning Precision Materials Co., Ltd.

Soon-geun Kwon

Jae-young Choi

Dong-Wook Lee

Hyo-young Lee

Chong-joon Ryu

Nae-young Jung

Yeo-heung Yoon

Jae-Young Choi

Chong-Joon Ryu

Provided are a multi-layered graphene film, a method of manufacturing the multi-layered graphene film, and an energy storage device using the multi-layered graphene film as an electrode. The multi-layered graphene film includes a first graphene layer, a spacer layer provided on the first graphene layer, and an upper graphene layer provided on the spacer layer. The spacer layer is provided to maintain a desired distance between the first graphene layer and the upper graphene layer. A plurality of layers with different layer configurations are further provided between the spacer layer and the upper graphene layer. The spacer layer may a graphene or a graphene oxide layer.

Multi-layered graphene films, energy storage devices using multi-layered graphene films as electrodes, and methods of manufacturing multi-layered graphene films and energy storage devices

An electrode structure includes a rolled graphene film which is wound about a central axis, and a nanomaterial dispersed on a surface of the rolled graphene film.

Electrode structure having rolled graphene film

A graphene-nanomaterial composite, an electrode and an electric device including the graphene-nanomaterial composite and a method of manufacturing the graphene-nanomaterial composite include a graphene stacked structure including a plurality of graphene films stacked on one another; and a nanomaterial between the plurality of graphene films and bonded to at least one of the plurality of graphene films by a chemical bond.

Graphene-nanomaterial composite, electrode and electric device including the same, and method of manufacturing the graphene-nanomaterial composite

Growing community of inventors

Chungcheongnam-do, South Korea

Soon-geun Kwon