▎ 摘　　要

NOVELTY - The method involves cutting a wood along cross section into 1-4 mm thickness. The dried wood chips are vacuum dipped after drying in acid sodium chlorite solution to remove lignin in the wood chips by reaction. The washed wood chips are frozen and driedd by liquid nitrogen to prepare a hierarchical porous wood gas material gel. The graded porous porous porous wood gel is aggregated in pyrrole monomer using ferric chloride as oxidant. A carbon nano-tube is added into wood gel graphene or metal nano-particle and polypyrrole or polyaniline. USE - Method for preparing a graded porous wood aerogel-based electrode material used in a super capacitor. Can also be used in electrochemical device. ADVANTAGE - The method can be prepared into graded porous wood aerogel based electrode material with excellent electrochemical performance.