▎ 摘　　要

NOVELTY - Carbon material has a graphene laminated structure and has a Brunauer-Emmett-Teller (BET) specific surface area of 1-25 m2/g, where the particle concentration of the carbon material is 3000-50000/ mu l, and the integrated value of the particle surface area of the carbon material is 1000-10000 mm2/mg, as measured by a flow particle image analyzer using an N-methyl-2-pyrrolidone solution containing 20 ppm carbon material. USE - The carbon material is used as a conductive additive, which is used in an electrode of a power storage device (all claimed), such as a non-aqueous electrolyte primary battery, an aqueous electrolyte primary battery, a non-aqueous electrolyte secondary battery, an aqueous electrolyte secondary battery, an all-solid electrolyte primary battery, an all-solid electrolyte, an electrolyte secondary battery, a capacitor, an electric double layer capacitor, and a lithium ion capacitor. ADVANTAGE - The carbon material enhances battery characteristics such as capacity and rate characteristics, and cycle characteristics of the power storage device.