▎ 摘 要
NOVELTY - The device has a stroke part coated with a cylindrical spiral ganglion polycrystalline or monocrystalline graphene. Range of the cylindrical spiral ganglion polycrystalline or monocrystalline graphene is 0.2-2 nanometers. Diameter of a polycrystalline grain graphene helical coil is 50 nanometers. A spiral coil is wound on a core and formed with a roll. An inner side of the roll is formed with multiple functionalizing particles. USE - Platy polycrystalline or monocrystalline monolayer graphene based nanocomposite reversible hydrogen storing device.