TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The electrolyte is dilute sulfuric acid (0.1-20 wt. %). Preferred Methods: The method involves before placing the battery unit or battery set separated from the waste battery into the electrobath to perform double-power multimodule electroanalysis technique, performing acid pouring treatment to the waste lead-acid accumulator, and separating the housing of the waste lead-acid accumulator to obtain dilute sulfuric acid, waste plastic and battery unit or battery set. The method involves connecting pole sets of the lead dioxide of the battery sets selected from the waste battery in parallel by using lead wires, respectively; connecting the lead electrobath and the positive pole set of the lead dioxide with the positive pole and the negative pole of power A, respectively while connecting the positive pole set and the negative pole set of the lead dioxide with the positive pole and the negative pole of power B to form a double-power multimodule electroanalysis mode; adjusting the voltage and output current of the power A an the power B; controlling the electroanalysis temperature of the electrobath and performing electrobath; directly converting the lead sulfate, dioxide pole and other leads on the lead dioxide pole plate and the lead plate into the metal lean; and precipitating on the slab lattice to form lead plate while separating sulfuric acid from the electrolyte. The acid pouring treatment and the housing separating of the waste lead-acid battery are preformed by manual or mechanical method. The method includes infusing electrolyte into the electrobath. The lead plate is formed by precipitating on the slab lattice. Preferred Parameters: The current of the power A is controlled at 200-1000 A and current of the power B is controlled at 180-820 A by adjusting the voltage and output current of the power A and the power B, respectively. The lead is pressed and then is melted at 350-450 degrees C to obtain 96% regenerated lead ingot or lead plate. The electroanalysis is carried out at 10-50 degrees C for 5-45 hours. Preferred Properties: The lead has a recovery of greater than 96%. The regenerated lead ingot or lead plate has a preferable purity of 97-99%. The electrolytic lead having a purity of greater than 99.95 % using lead fluorosilicate electrorefining lead technique.    TECHNOLOGY FOCUS - METALLURGY - Preferred Component: The electrobath is made of pure lead corrosion-resistant lead alloy or polyvinyl chloride lead material.