▎ 摘　　要

NOVELTY - Preparing anode active material comprises (a) adding concentrated sulfuric acid into a conical flask, placing the conical flask in ice-water bath, adding the solid of sodium nitrate under mechanical stirring, adding graphite and stirring, slowly adding potassium permanganate to react, heating the water bath, adding deionized water into the mixed solution, and stirring in a high-temperature water bath, adding deionized water, hydrogen peroxide for reaction, adding dilute hydrochloric acid solution, allowing to stand for 12 hours, washing with water until neutral, and drying to obtain heteroatom-doped graphene oxide, (b) adding deionized water into heteroatom-doped graphene oxide, sonicating, hydrothermally reacting, washing and drying to obtain a heteroatom-doped graphene compound, and (c) mixing the heteroatom-doped graphene compound with activated carbon and lithium cobaltate, and mechanically stirring. USE - Preparation method of anode active material for high power and high specific energy battery type capacitor. ADVANTAGE - The anode active material has advantages of large electrolyte storage capacity and low internal resistance of the pole piece, ensures that the battery-type capacitor has high specific energy and specific power at the same time, and has excellent cycle stability of 100% depth of discharge (DOD) at high potential. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for use of anode active material for high power and high specific energy battery type capacitor.