| 摘要 |
PROBLEM TO BE SOLVED: To improve charge acceptance of a lead-acid storage battery so that the lead-acid storage battery prevents a service life from decreasing in a use condition where the lead-acid storage battery is deeply discharged with great frequency. SOLUTION: A mass ratio (SA/PAM) of a mass of sulfuric acid (SA) of an electrolyte solution held in a positive active material, and of a mass of positive-electrode active material (PAM), is set to a range from 0.05 to 0.07. A mass ratio (SB/PAM) of a mass of sulfuric acid (SB) in an electrolyte solution between a positive electrode plate and a negative electrode plate, and of a mass of positive-electrode active material (PAM), is set to a range from 0.05 to 0.07. Furthermore, a mass ratio (SB/SA) of the mass of sulfuric acid (SB) in the electrolyte solution between the positive electrode plate and the negative electrode plate, and of the mass of sulfuric acid (SA) in the electrolyte solution held in the positive active material, is set to a range from 0.8 to 1.4 preferably. COPYRIGHT: (C)2008,JPO&INPIT
|
