Fabrication method for negative plate of lead-acid storage battery

The invention relates to a lead-acid battery and a manufacturing method, which are applied in the directions of lead-acid battery electrodes and the like, and can solve the problems of poor bonding between lead alloy ribs and active substances, low charging receiving capacity of active substances, affecting battery weight and environmental protection, and the like. Achieve the effects of being beneficial to environmental protection, weight reduction, and low contact resistance

Active Publication Date: 2016-01-06
SHUANGDENG GRP
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  • Abstract
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AI Technical Summary

Problems solved by technology

The tabs and frame of the traditional negative plate grid are made of lead alloy. On the one hand, in order to ensure sufficient strength and rigidity of the grid, there are certain requirements for its thickness and the thickness and density of the ribs, and the amount of lead used is relatively large. Affect battery weight and environmental protection; on the other hand, lead alloy ribs and active material are not tightly bonded, the contact area is small, and the resistance is large, resulting in low charging and receiving capacity of active material and sulfation phenomenon, which directly affects the service life of the battery

Method used

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  • Fabrication method for negative plate of lead-acid storage battery
  • Fabrication method for negative plate of lead-acid storage battery
  • Fabrication method for negative plate of lead-acid storage battery

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Embodiment Construction

[0012] The present invention will be further described below through the embodiments in conjunction with the accompanying drawings.

[0013] According to the design requirements of the 12V60Ah (L2) starter battery, the negative plate of the lead-acid battery is made, and the operation is as follows:

[0014] 1. Use polyacrylonitrile chopped fibers to wind and interweave the polyacrylonitrile organic material mat produced by the non-woven method and carbonize it to make a conductive carbon fiber felt. The weight is 120g / ㎡.mm, and the thickness is 2-4mm. According to size requirements, cut into conductive carbon fiber felt tape.

[0015] 2. According to the thickness requirements of the negative plate and the determined thickness of the conductive carbon fiber felt, the lead-calcium-tin-aluminum alloy strip is cold-rolled to make an aluminum alloy with a suitable thickness, the ribs 1 are criss-crossed into a rectangle, and the tab base 2 is provided. belt (such as figure 1 , ...

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Abstract

A fabrication method for a negative plate of a lead-acid storage battery comprises grid fabrication and active substance filling and is characterized by comprising the following steps of: substituting the traditional framework of a negative plate grid by a conductive carbon fiber felt part; embedding a tab and conductive ribs onto the carbon fiber felt to form a novel grid; filling the interior and the surface of the novel grid with an active substance; and fabricating the negative plate. In the negative plate, lead dosage is reduced, the weight is favorably reduced, and an environment is protected; and particularly, the carbon fiber and the active substance are tightly combined, the contact area is large, the resistance is small, the utilization rate of the active substance is improved, the charging reception of the active substance is high, the sulphation is overcome, and the service life of the batter is prolonged.

Description

technical field [0001] The invention relates to a production method of a lead-acid battery pole plate, in particular to a production method of a negative plate, and belongs to the field of lead-acid battery production. Background technique [0002] With its excellent cost performance, lead-acid batteries are widely used in the fields of backup power supply, energy storage and power supply. [0003] Although the lead-acid battery technology is quite mature, there are still shortcomings in the lead-acid battery, especially the battery life is not long. The sulfation of the active material of the negative electrode is a common end-of-life failure mode of the battery. This failure mode is closely related to the long-term undercharging of the negative electrode, and the charging capacity of the negative electrode is directly related to the production method of the negative plate. The negative plate of the existing lead-acid battery is made by first rolling the grid, and then fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/20
CPCH01M4/20Y02E60/10
Inventor 陆亚山
Owner SHUANGDENG GRP
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