▎ 摘　　要

NOVELTY - Preparing sensitive material involves mixing copper salt, carbon conductive material and titanium dioxide nano powder uniformly, mixing with polydimethylsiloxane dimethyl silicone polymer uniformly, and maintaining at 60-80 degrees C for 2-4 days or natural room temperature state to obtain sensitive material. The ratio of copper salt, carbon conductive material, titanium dioxide nano powder and polydimethylsiloxane dimethyl silicone polymer is (0.002-2.5):(0.5-3):(0.5-2.5):(92-99). USE - Method for preparing sensitive material used for preparing flexible comb-shaped half-dry electrode (claimed). ADVANTAGE - The method enables to prepare flexible comb-shaped semi-dry electrode having good flexibility, good electrode performance and relative coefficient of the standard wet electrode collecting brain electric signal is more than 96%. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a flexible comb-shaped half-dry electrode, which comprises comb-shaped structure, tantalum wire and N conduits for introducing electrolyte, where component of comb-shaped structure is sensitive material, and the comb-shaped structure comprises substrate and N claw columns connected on bottom surface of substrate, channel is formed in each of claw columns, lower end of channel is connected with bottom surface of claw column, top end of channel is connected with top surface of the substrate, each channel extends into one of guide pipe, electrolyte is used for discharging electrolyte from bottom surface of claw column, and tantalum wire extends into comb structure for collecting ion to form micro-current.