▎ 摘　　要

NOVELTY - The carbon nano-tube electrode comprises an electro-conductive base material (11) comprised with an electro-conductive metal, and a multi wall carbon nano-tube (24) made to grow from the seed catalyst particles (23) provided in the electro-conductive base material. The tube-shaped graphene sheet that overlaps with the outer side of the main portion (24a) contains several graphene sheets from which a physical property differs. The electrode has a surface layer portion (24b) having a carbon ring-deficient portion, which is a portion where the carbon ring of the graphene sheet is defective, as compared with the main portion. An electron diffraction pattern of the surface layer portion includes a diffraction spot of the shape extended compared with the shape of the diffraction spot of the electron diffraction pattern of the main portion. The thickness of the surface layer portion is 2.5 times or more with respect to the thickness of the main portion. USE - Carbon nano-tube electrode such as positive electrode and negative electrode, for manufacturing carbon nano-tube composite, used in electrical storage device (all claimed) such as lithium ion capacitor, lithium ion secondary battery, dual carbon battery, etc. ADVANTAGE - The negative electrode capacitance of the carbon nano-tube electrode is improved. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a manufacturing method of a carbon nano-tube composite, which involves forming a catalyst layer (13) comprised by the seed catalyst particles for forming a multi wall carbon nano-tube on the electro-conductive base material, and forming multi wall carbon nano-tube on the catalyst layer. After the precursor formation process, when the temperature of the laminated main portion is in combination temperature range, the gas flow rate of the carbon source gas is made into a second predetermined gas flow rate, and the multi wall carbon nano-tube growing with the precursor is made as the starting point. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram and a transmission electron microscopy (TEM) image for demonstrating the structure of multi wall carbon nano-tube. Electro-conductive base material (11) Catalyst layer (13) Seed catalyst particle (23) Multi wall carbon nano-tube (24) Main portion (24a) Surface layer portion (24b)