METHOD FOR WATER-COOLED FORMING OF LEAD-ACID STORAGE BATTERIES Russian patent published in 2004 - IPC

FIELD: electrochemistry and electrical engineering; lead-acid storage battery manufacture. SUBSTANCE: proposed method includes filling batteries with electrolyte, grouping them, mounting in tanks which are filled with cooling liquid, and forming with dc and/or pulse current after settling down, current being supplied in four stages. During first stage current that does not exceed 0.02 of battery rated current C_r is first passed through battery for 5 to 20 minutes and then it is raised within 0.3 to 1.5 hours to 0,3-0,7 C_r. During second stage current of 0,3-0,7 C_r is passed through batteries for 0.5 to 3 hours. During third stage current is reduced to 0,1-0,2 C_r within 0.5 to 2 hours, and finally during fourth stage batteries are additionally formed with current of 0,1-0,2 C_r. for 5 to 10 hours. Total time of battery forming process is 12 to 16 hours irrespective of battery type. During battery forming highly active form β-PbO₂ is obtained across cathode. EFFECT: reduced time of heavy-current forming of batteries under optimal conditions. 1 cl, 12 dwg, 1 tbl, 4 ex