| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a lead-acid battery capable of improving charge efficiency and preventing degradation of a life. SOLUTION: Staple fiber of polyethylene is added into lead powder 1.7 kg and is dry-mixed. Then a predetermined amount of water is added and mixed for 10 minutes, and dilute sulfuric acid of specific gravity 1.26 (20 deg.C) is added and mixed for 15 minutes. After ten minutes from the mixing, minium 0.3 kg of a minium rate not less than 95% is added and mixed to prepare positive electrode active material paste. A crystal of tribasic lead sulfate in the positive electrode non-active material paste grows, a particle of paste does not become coarse, and bonding force of the paste is maintained even when the minium is added. |
