Preparation method of electrode material

The invention provides a preparation method of an electrode material, which comprises the following steps of: fixing a liner tube, coating glue on the liner tube, wiring, obtaining an electrode bar blank, blasting a release agent on the inner surface of a mold, transferring into a vulcanizing machine, carrying out temperature control molding, taking out the mold after cooling, taking out an insulating liner tube after opening the mold, and removing a glue material in an area where the upper surface of a pole block on the insulating liner tube is located. The method comprises the following steps of: placing a pole block in a furnace, exposing the pole block, winding a lead wire in an exposed region of the pole block, enabling the lead wire to be in contact with the pole block, axially welding the same corresponding lead wire together to obtain a liner tube assembly, and assembling an accessory part on the liner tube assembly. By adopting the scheme, the qualified rate of finished products prepared by the elect