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Lead-acid battery ultra-low water loss plate positive grid and lead-acid battery preparation method

A lead-acid battery, water loss technology, applied in the direction of lead-acid battery, lead-acid battery construction, battery electrodes, etc., can solve the problems of valve-controlled lead-acid dry water failure, high water loss rate, etc., to achieve high temperature resistance and water loss prevention Good performance, ultra-low water loss effect

Active Publication Date: 2021-06-04
CAMEL GRP HUAZHONG BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of ultra-low water loss plate positive electrode grid of lead-acid storage battery and the preparation method of lead-acid storage battery, to solve the existing lead-acid storage battery dehydration rate high and valve-regulated lead-acid dryness that propose in the above-mentioned background technology. Water failure problems, thus prolonging the service life of lead-acid batteries

Method used

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  • Lead-acid battery ultra-low water loss plate positive grid and lead-acid battery preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Step 1. Grid alloy configuration: configure the positive grid alloy: the alloy composition is tin 1.31%, calcium 0.0042%, aluminum 0.011%, zinc 0.005%, bismuth 0.01%, cadmium 0.001%, silver 0.004%, nickel 0.0003%, cobalt 0.0004%, selenium 0.0003%, tellurium 0.0003%, chromium 0.0003%, manganese 0.0003%, antimony 0.0005%, lead is the balance; the negative electrode alloy adopts the conventional negative electrode alloy formula configuration.

[0031] Step 2. Preparation of positive and negative lead pastes: the formula of positive and negative lead pastes is prepared according to the conventional positive and negative lead paste formulas.

[0032] Step 3. Electrode plate coating and filling: Use conventional positive and negative electrode active material ratios and paste quantities, and use a pull-screen expansion equipment wheel-type filling machine for lead paste filling.

[0033] Step 4, extreme group encapsulation: use conventional PE separators for extreme group enc...

Embodiment 2

[0037] Step 1. Grid alloy configuration: Configure the positive grid alloy: the alloy composition is 1.32% tin, 0.0043% calcium, 0.012% aluminum, 0.006% zinc, 0.02% bismuth, 0.0012% cadmium, 0.007% silver, 0.0004% nickel, cobalt 0.0003%, selenium 0.0003%, tellurium 0.0003%, chromium 0.0003%, manganese 0.0003%, antimony 0.0006%, lead is the balance; the negative electrode alloy adopts the conventional negative electrode alloy formula configuration.

[0038] Step 2. Preparation of positive and negative lead pastes: the formula of positive and negative lead pastes is prepared according to the conventional positive and negative lead paste formulas.

[0039] Step 3. Electrode plate coating and filling: Use conventional positive and negative electrode active material ratios and paste quantities, and use a pull-screen expansion equipment wheel-type filling machine for lead paste filling.

[0040] Step 4, extreme group encapsulation: use conventional PE separators for extreme group en...

Embodiment 3

[0044] Step 1. Grid alloy configuration: Configure the positive grid alloy: the alloy composition is 1.6% tin, 0.007% calcium, 0.015% aluminum, 0.005% zinc, 0.01% bismuth, 0.001% cadmium, 0.004% silver, 0.0003% nickel, cobalt 0.0004%, selenium 0.0003%, tellurium 0.0004%, chromium 0.0004%, manganese 0.0003%, antimony 0.0005%, lead is the balance; the negative electrode alloy adopts the conventional negative electrode alloy formula configuration.

[0045] Step 2. Preparation of positive and negative lead pastes: the formula of positive and negative lead pastes is prepared according to the conventional positive and negative lead paste formulas.

[0046] Step 3. Electrode plate coating and filling: Use conventional positive and negative electrode active material ratios and paste quantities, and use a pull-screen expansion equipment wheel-type filling machine for lead paste filling.

[0047] Step 4, extreme group encapsulation: use conventional PE separators for extreme group encap...

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Abstract

The invention discloses a lead-acid battery ultra-low water loss plate positive electrode grid and a preparation method of the lead-acid battery. It belongs to the technical field of storage batteries. It mainly solves the problems of the high water loss rate of the existing lead-acid storage battery and the failure of valve-controlled lead-acid dry water. The main composition of the positive electrode grid alloy in the lead-acid storage battery of the present invention is Pb-Ca-Sn-Al, wherein 1.3-1.7% of tin, 0.004-0.01% of calcium, 0.01-0.02% of aluminum, the above ratio of Pb-Ca-Sn ‑Al positive electrode alloy has a high gas evolution potential, and the gas release rate is greatly influenced by setting the sum range of element combinations (zinc, bismuth, cadmium, silver) that inhibit the beneficial effect of gas evolution in the positive electrode grid alloy. Inhibit the synergistic effect, through the control of the sum range of the element combination (nickel, cobalt) that has the synergistic effect of gas evolution and acceleration, reduce the impact of the element combination on the overall gas evolution of the battery. The invention improves the formula of the constituent elements of the positive plate grid alloy, so that the lead-acid storage battery prepared by using the grid alloy formula has the characteristics of ultra-low water loss and good performance of high temperature resistance and water loss prevention.

Description

technical field [0001] The invention belongs to the technical field of lead-acid storage batteries, and in particular relates to a preparation method of a lead-acid storage battery ultra-low water loss plate positive grid alloy and a lead-acid storage battery containing the positive grid. Background technique [0002] Since the lead-acid battery was invented, it has become the largest and most widely used battery variety in the world because of its low price, easy-to-obtain raw materials, reliable performance, easy recycling, and high-current discharge. However, as the environmental protection requirements of the battery industry become increasingly stringent, the traditional refillable dry battery is replaced by a maintenance-free battery. Type lead-acid batteries are designed with exhaust type, which will cause electrolyzed water and water evaporation loss problems during use, especially in the overcharged state of operating vehicles such as taxis or under high-temperature...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C11/06H01M4/68H01M4/73H01M10/12
CPCC22C11/06H01M4/685H01M4/73H01M10/12Y02E60/10Y02P70/50
Inventor 田振王涛徐建刚郭树演夏诗忠刘长来
Owner CAMEL GRP HUAZHONG BATTERY