Lead storage battery

Abstract

The invention provides a lead storage battery, which can restrain the layering of an electrolyte very well even though the lead storage battery is a high lead storage battery of which the H / W rate is large, and has an excellent cycle life performance. In the lead storage battery, a battery jar forms an internal space having a more than 1.7 H / W rate of the size H in a height direction and the size W in the width direction parallel with a homopolar panel, and a negative plate possesses a cathode active material containing more than 0.016 mass % of antimony.

Description

technical field [0001] The present invention relates to a high-profile lead-acid battery in which stratification of an electrolytic solution is suppressed and excellent in cycle life performance. Background technique [0002] Lead-acid batteries are widely used as automobile batteries, backup batteries, forklift batteries, etc. due to their low price, stable performance, and high reliability. A general lead acid battery is manufactured by stacking or winding a positive electrode plate and a negative electrode plate through a separator, storing them in a battery case, and injecting an electrolytic solution mainly composed of dilute sulfuric acid into the battery case. [0003] The sulfuric acid in the electrolyte of the lead storage battery is precipitated into the positive / negative electrode active material in the form of lead sulfate through the discharge reaction, and released from the active material into the electrolyte through the charge reaction. In this way, the sulf...

AI Technical Summary

Problems solved by technology

That is, in countermeasure (1), the addition amount of antimony compound, nickel compound, etc. depends on their solubility in dilute sulfuric acid, so it is difficult to control the optimal addition amount

In addition, countermeasure (2) is not suitable for liquid type (curved) batteries, and the initial cost of countermeasure (3) is high

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