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Lead acid battery

A lead-acid battery, unit cell technology, applied in the direction of lead-acid battery, lead-acid battery construction, secondary battery, etc., to achieve the effect of preventing the further reduction of the function

Active Publication Date: 2014-09-17
GS YUASA INT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When idling is performed by a lead-acid battery using a grid composed of a calcium-based lead alloy and a low-antimony-based lead alloy, the service life tends to be reached due to insufficient charge as the charge-discharge cycle progresses.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0044] Hereinafter, the effect of this embodiment is demonstrated using an Example.

[0045] The positive electrode plate 8 commonly used in each lead storage battery is produced by kneading lead oxide powder with sulfuric acid and purified water to make a paste, and filling the paste in a rolling plate made of a calcium-based lead alloy composition. In the grid (not shown) obtained by cutting and stretching the sheet.

[0046] In addition, the negative electrode plate 9 commonly used in each battery is produced by the following steps: add organic additives and the like to lead oxide powder by a conventional method, knead with sulfuric acid and purified water to make a paste, and fill it with the same material as the positive electrode. In the grid obtained by cutting and stretching the rolled sheet.

[0047] After aging and drying the produced plate, the positive plate is wrapped with a polyethylene bag-shaped separator 13 and overlapped with the negative plate 9, and the ea...

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PUM

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Abstract

To provide a lead-acid storage battery used during idling cut-off, which achieves both life characteristics and corrosion suppression of negative electrode grid ears by reducing variation in SOC between unit cells. It is characterized in that it has an electric tank in which a plurality of unit cells are arranged in a straight line and a cover provided with terminals, and has the following structure: the electrode plate groups arranged in the unit cells are connected in series, and the unit cells at both ends are connected in series. A pole plate configured in is connected to the terminal by means of a pole, and with regard to the concentration of antimony contained in the electrolytic solution, the antimony concentration of the unit cells at both ends of the plurality of unit cells is higher than that of the middle unit cell High concentration.

Description

technical field [0001] This invention relates to the lead acid battery used by the idling stop system. Background technique [0002] In recent years, due to environmental considerations, automobiles with a so-called idle stop function that temporarily shuts off the engine when stopped by a signal or the like and restarts it when starting out have become popular. Lead storage batteries for battery starters mounted on these automobiles are required to be suitable for an idling stop method. [0003] Conventionally, an alloy composed of calcium-based lead alloy and antimony-based lead alloy has been used in grids for lead-acid storage batteries. If antimony is present on the surface of the positive grid, the adhesion between the grid and the active material will be improved, preventing repeated The capacity decreases during deep charge and discharge. Therefore, when a calcium-based lead alloy is used, a lead alloy containing antimony is attached to the surface of the alloy, or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/08H01M10/06H01M50/147H01M50/528H01M50/541H01M50/55H01M50/553H01M50/562H01M50/567H01M50/571
CPCH01M2/305H01M2/043H01M10/08Y02E60/126H01M10/4235H01M10/12Y02E60/10H01M50/147Y02P70/50H01M50/562H01M50/567H01M50/55H01M50/553
Inventor 原田岬杉江一宏下田一彦
Owner GS YUASA INT LTD