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Cold pressing manufacturing method of lead ring of lead-acid storage battery

A technology for lead-acid batteries and manufacturing methods, which is applied to battery components, circuits, electrical components, etc., and can solve the problems of low density of lead rings, affecting appearance, and large porosity

Inactive Publication Date: 2011-04-20
SHANGHAI ZHIDA BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] From the above situation, it is not difficult to see that the fundamental point of anti-leakage that needs to be solved urgently at this stage is still on the lead ring. The original lead-acid battery lead ring manufacturing technology mostly uses gravity casting or hot extrusion technology. Defects: The density of the lead ring is not high and the porosity is large. During the use of the lead-acid battery, the electrolyte in the battery will penetrate from the battery through the pores in the lead ring to the outer surface of the lead ring, which will affect the appearance and easily corrode the metal connection of the power supply. Wire

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] A method for manufacturing lead-acid battery lead rings by cold pressing, which is implemented according to the following steps to manufacture lead-acid battery lead rings;

[0015] (1) The lead alloy material liquid is injected into the casting mold by manual or mechanical casting, and the lead ring blank of the lead-acid storage battery is made;

[0016] (2) After the blank is completely cooled, the lead blank is extruded by cold pressing; the lead material is a completely cooled solid state during cold pressing, rather than a liquid state;

[0017] The lead ring of the lead-acid battery made by cold pressing is used on the battery, and when combined with the battery, an anti-seepage layer is coated on the joint between the lead ring and the plastic cover of the battery. The electrolyte in the original accumulator penetrates from the accumulator through the pores in the lead ring to the outer surface of the terminal post, so that the phenomenon of affecting the appear...

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Abstract

The invention provides a cold pressing manufacturing method of a lead ring of a lead-acid storage battery, relating to a cold pressing manufacturing process of the lead ring of the lead-acid storage battery. The lead ring of the lead-acid storage battery, which is manufactured by the cold pressing manufacturing method, can prevent acid leakage phenomena, and finished products have bright surfaces. The cold pressing manufacturing method of the lead ring of the lead-acid storage battery comprises the following steps of: (1) injecting liquid lead alloy materials into a casting mold to manufacture a lead ring blank of the lead-acid storage battery by using a manual or mechanical casting method; and (2) after the lead ring blank is completely cooled, carrying out extrusion molding on the lead ring blank by using a cold pressing method, wherein lead materials are in completely cooling solid state but not liquid state during cold pressing.

Description

technical field [0001] The patent of the present invention relates to a cold-pressed manufacturing process of a lead ring of a lead-acid storage battery. Background technique [0002] Lead-acid battery occupies a pivotal position in the field of secondary batteries by virtue of its excellent performance-price ratio. In all aqueous solution power supply systems, lead-acid battery has a higher working voltage, better high-current discharge performance and high-low temperature discharge Performance, it is not only suitable for floating charging, but also suitable for starting and recycling. Therefore, lead-acid batteries are widely used in fields such as backup power supply, energy storage, and power energy. [0003] There are currently two main materials for lead-acid battery shells, one is ABS (copolymer of acrylonitrile, butadiene, and styrene), and the other is polypropylene. [0004] The electrolyte of the lead-acid battery is a diluted sulfuric acid solution. Sulfuric a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/08B21C23/00H01M2/32H01M50/571
CPCY02E60/12Y02E60/10
Inventor 何卫平
Owner SHANGHAI ZHIDA BATTERY