▎ 摘　　要

NOVELTY - Preparing a stretchable electroconductive material involves dissolving 100 pts. wt. poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) in water to form a first mixed solution, adding 200-1000 pts. wt. repair linking agent and 15-300 pts. wt. an ionic liquid plasticizer sequentially to the first mixed solution to form a second mixed solution. The repair linking agent is selected from a group consisting of polyethylene glycol or polyethylene oxide. The carbon material particles dispersed in isopropanol to form a dispersion liquid, mixed the second mixed solution and dispersion liquid to form an electroconductive slurry, wheren in the electroconductive slurry, a weight ratio of the carbon material particles to the PEDOT-PSS is in a range of 3:20-2:1, and then coated and dried the electroconductive slurry to form the stretchable electroconductive material. USE - Method for preparing stretchable electroconductive material for device (claimed). ADVANTAGE - The prepared stretchable electroconductive material has polyethylene oxide with molecular weight of is 80000-120000, that improve a self-repairing ability of stretchable electroconductive material. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: 1. a stretchable electroconductive material comprises PEDOT-PSS, repair linking agent, ionic liquid plasticizer and carbon material particles, where the repair linking agent is selected from a group consisting of polyethylene glycol or polyethylene oxide, and the repair linking agent, the ionic liquid plasticizer, and the carbon material particles are doped in the PEDOT-PSS; and 2. a device comprises a stretchable electroconductive material.