A volume Ve of an electrode group thereof is calculated by Ve = (Sp + Sn) x D/2, where Sp represents an electrode plate area of a positive electrode plate, Sn represents an electrode plate area of a negative electrode plate, D represents the internal dimen...

A flooded lead-acid battery includes a pasting substrate embedded into an active material of at least one surface of either the positive plates or the negative plates of each respective plurality, wherein the pasting substrate has an initial thickness. The...

In a valve regulated lead-acid battery, a positive electrode plate, a retainer mat and a negative electrode plate respectively hold an electrolyte solution and the electrolyte solution contains colloidal silica and lithium ions. The short circuit after the...

[Purpose] It is a purpose of the present invention to provide a lead-acid battery for use in idle reduction operation in which functional deterioration by leakage of the electrolyte from the inner terminal is prevented, even when the terminal becomes thin ...

[Purpose] It is a purpose of the present invention to provide a lead-acid battery for use in idle reduction operation in which both excellent life characteristics and suppression of corrosion of negative-electrode grid ears are achieved by suppressing vari...

A rechargeable battery is provided such that the positive electrode (1) comprises lead dioxide, the negative (2) electrode zinc, and the electrolyte (4) is alkaline. Upon discharge, the lead dioxide is reduced to lead oxide, the zinc is oxidized to zinc ox...

Present invention is related to a liquid low concentration sodium-containing silicate solution as the activation solution for lead-acid storage batteries and an internal activation method. Such an activation solution is prepared by mixing a silica gel cont...

Low-sodium silicate liquid electrolyte is manufactured by mixing 15-25 pts. wt. water and 5-15 pts. wt. silica sol (containing 40-60 wt.% SiO 2) to a Baume density of 0.65-0.85 % [deg]Be; addition of an inorganic acid to adjust the pH to 1-4; magnetization...