Lead-acid battery anode and lead-acid battery

A technology of lead-acid battery and negative electrode, which is applied in the direction of lead-acid battery electrode, lead-acid battery, lead-acid battery construction, etc. It can solve the problems of sudden death of the negative electrode ear and the expected arrival of life, and achieve the internal protection against rolling up and adhesion short circuit effect

Active Publication Date: 2013-11-20
GS YUASA INT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The second concern is sudden death due to breakage of the negative electrode ear (lead-like part for current collection)
This phenomenon leads to a sudden inability to discharge, so it is impossible for the user to infer the arrival of the service life from the change of the internal resistance

Method used

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  • Lead-acid battery anode and lead-acid battery
  • Lead-acid battery anode and lead-acid battery
  • Lead-acid battery anode and lead-acid battery

Examples

Experimental program
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Effect test

Embodiment

[0045] Hereinafter, the effects of the present embodiment will be described with reference to examples.

[0046] The lead oxide powder is kneaded with sulfuric acid and purified water to prepare a positive electrode active material paste. A positive electrode 9a was produced in the positive electrode grid 30 obtained by spreading out the calcium alloy.

[0047] On the other hand, organic additives, barium sulfate, carbon, etc. are added to lead oxide powder by a conventional method, mixed with sulfuric acid and purified water to prepare a negative electrode active material paste, and the active material paste is filled in a reciprocating method. The negative electrode grid 20 obtained by stretching a rolled sheet (the composition is a lead-tin-calcium alloy) with the alloy layer 4 made of lead-tin-antimony on the surface under various conditions (the details will be described later) Among them, the negative electrode 9b (length 115 mm) was produced. The rolled sheet does not...

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Abstract

This lead-acid battery anode comprises a lattice of a lead alloy which does not include antimony, and an active material paste which is infused into the lattice. A tab part for electrically connecting to another anode is disposed on one end of the lattice. An alloy layer including antimony is disposed on a portion of a surface of the lattice. The alloy layer is covered by the active material paste and not exposed on the side of the end of the lattice on the opposite side from the one end thereof.

Description

technical field [0001] The present invention relates to a lead storage battery having an antimony-containing alloy layer on a part of the surface of the grid of the negative electrode. Background technique [0002] In recent years, in order to improve the combustion efficiency of automobiles, an idling stop technology that automatically stops the engine during parking has attracted attention. The lead-acid battery mounted on the idling stop vehicle is charged only while driving, so the DOD (depth of discharge) tends to increase. There are two major concerns when using lead-acid batteries in areas with large DOD. [0003] The first concern is to promote the release of the positive electrode active material from the positive electrode. PbO of the positive electrode active material in the lead-acid battery during charging and discharging 2 and Pb of the negative electrode active material and H of the electrolyte 2 SO 4 A redox reaction is carried out to give and receive el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/68H01M4/14H01M4/73H01M10/12
CPCH01M10/12H01M4/14H01M4/685H01M4/73H01M4/20Y02E60/126H01M4/68Y02E60/10Y02P70/50
Inventor 原田岬杉江一宏下田一彦
Owner GS YUASA INT LTD
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