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Copper core type terminal column of valve-regulated lead-acid accumulator and preparation method

A technology of lead-acid batteries and terminal poles, which is applied to battery pack parts, circuits, electrical components, etc., and can solve problems such as weak bonding between copper core and lead layer, scrapped batteries, and weak bonding

Active Publication Date: 2013-01-23
FENGFAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this common copper core terminal pole is that the bonding force between the copper core and the lead layer is not strong, which causes the terminal pole to shake during use, which brings safety hazards to the use of the battery
For example, when the terminal post is subjected to a longitudinal pulling force, it may fall off from the battery due to weak binding force, causing the entire battery to be scrapped; Fuse, causing the battery to be scrapped
In addition, the shaking of the terminal pole may also cause difficulty in charging and discharging the battery, resulting in reduced battery life

Method used

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  • Copper core type terminal column of valve-regulated lead-acid accumulator and preparation method
  • Copper core type terminal column of valve-regulated lead-acid accumulator and preparation method
  • Copper core type terminal column of valve-regulated lead-acid accumulator and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: get 4g ammonium chloride NH4Cl, 40g zinc chloride ZnCl2, 56g distilled water, 2 drops of concentrated hydrochloric acid HCl preparation solution; The copper core is immersed in the solution by the lead layer coating part for 5 seconds; The copper core soaked through the solution Dry it, and then dip the soaked part of the copper core in liquid tin to take a layer of tin liquid to form a thin tin layer of 0.2 mm; the copper core after tinning is cooled to normal temperature, and the burrs of the tin layer are ground, and then cast lead, The finished copper core type end pole is made.

Embodiment 2

[0032] Embodiment 2: get 3g ammonium chloride NH4Cl, 32g zinc chloride ZnCl2, 65g distilled water, 2 drops of concentrated hydrochloric acid HCl preparation solution; The copper core is immersed in the solution by the lead layer coating part for 10 seconds; The copper core soaked through the solution Dry it, then dip the soaked part of the copper core in liquid tin to take a layer of tin liquid to form a thin tin layer of 0.4mm; cool the copper core after tinning to normal temperature, grind the burrs of the tin layer, and then cast lead, The finished copper core type end pole is made.

Embodiment 3

[0033] Embodiment 3: get 10g ammonium chloride NH4Cl, 30g zinc chloride ZnCl2, 60g distilled water, 3 drops of concentrated hydrochloric acid HCl preparation solution; The copper core is immersed in the solution by the lead layer coating part for 7 seconds; The copper core soaked through the solution Dry it, and then dip the soaked part of the copper core into a layer of tin liquid in liquid tin to form a thin tin layer of 0.7mm; the copper core after tinning is cooled to normal temperature, the burr of the tin layer is ground, and then lead is cast. The finished copper core terminal pole is made.

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Abstract

The invention discloses a copper core type terminal column of a valve-regulated lead-acid accumulator and a preparation method, which are used for solving the problem that the binding force between a copper core and a lead layer of the copper core type terminal column is weak. The copper core type terminal column of the valve-regulated lead-acid accumulator comprises an inner copper core and an outer lead layer, and a thin tin layer is arranged between the copper core and the lead layer in the improved copper core type terminal column. In the invention, the production process is improved according to factors which influence the binding force between the copper core and the lead layer, a process of removing an oxidization layer on the surface of the copper core is added, and the thin tin layer is arranged between the copper core and the lead layer by a tin plating process. Through the improvement, the binding force between the copper core and the lead layer is strengthened considerably, the shaking of the terminal column is avoided effectively and various bad influences of the shaking of the terminal column on the accumulator are eliminated. On-spot observation shows that all 240 6-FGM-180 storage batteries which use the terminal column in the invention do not have the terminal column loosening phenomenon.

Description

technical field [0001] The invention relates to a storage battery element and a preparation method, in particular to a valve-regulated lead-acid storage battery copper-core terminal pole and a preparation method thereof, belonging to the technical field of storage batteries. Background technique [0002] The valve-regulated lead-acid battery is composed of shell, positive and negative plates, separators, terminal poles and other parts. The poles are welded to form pole groups. At present, according to the conventional technology, the structure of the copper core terminal pole used in the valve-regulated lead-acid battery is as follows: figure 2 As shown, it consists of an inner copper core 1 and an outer lead layer 2. The production process is to process the copper core first, and then cast lead outside the copper core. The problem with this common copper-core terminal pole is that the bonding force between the copper core and the lead layer is not strong, which causes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/30H01M50/562H01M50/564
CPCY02E60/12Y02E60/10
Inventor 牛冀辉宋琳莹张猛
Owner FENGFAN