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Negative plate for lead-acid battery and preparation method thereof

A technology of lead-acid batteries and negative plates, which is applied in the direction of lead-acid battery electrodes, battery electrodes, electrode carriers/collectors, etc., which can solve the problems of poor overall performance, frequent daily maintenance, and short service life, etc., to facilitate discharge Stability, long cycle charge and discharge life, and long service life

Inactive Publication Date: 2017-02-08
萍乡市天东电器科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the electrode plate has good charge and discharge stability, the overall comprehensive performance is not good, such as low specific energy, short service life and frequent daily maintenance

Method used

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Embodiment Construction

[0035] Below in conjunction with embodiment the present invention is further described in detail. It should be pointed out that the following specific descriptions are all exemplary, and are intended to provide further description of the present invention. Unless otherwise specified, all scientific and technical terms used in the present invention have the same meaning as commonly understood by those skilled in the art to which this invention belongs.

[0036] 1. Materials

[0037] (Alloy) lead ingot was purchased from Zhuzhou Smelting Group Co., Ltd.; the purity of the lead block is 99.994%.

[0038] 2. Process equipment:

[0039]The automatic grid casting machine was purchased from Quanzhou Fengze Innovation Machinery Co., Ltd.; the SF-2OLS wind-selected lead powder machine was purchased from Zhongnan Industrial Co., Ltd.; the MAM-680 screw air compressor was purchased from Shenzhen Shanhaiyu Energy Co., Ltd. The company; the automatic paste machine (specification 1000kg)...

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Abstract

The invention provides a negative plate for a lead-acid storage battery. The negative plate comprises an alloy grid and plumbic acid layers laminated on two sides of the alloy grid, wherein the alloy grid is prepared from the following components in percentage by weight: 0.05-0.2 percent of calcium, 0.1-0.5 percent of tin, 0.01-0.05 percent of aluminum and the balance of lead; and each plumbic acid layer is mainly prepared from the following components in parts by weight: 950-1050 parts of lead powder, 80-100 parts of water and 80-90 parts of 1.4g / cm<3> of sulfuric acid. The lead-acid storage battery using the negative plate is good in large-current discharge stability, high in low-temperature starting capacity, excellent in corrosion resistance, long in cycle charge and discharge life and excellent in comprehensive performance.

Description

technical field [0001] The invention relates to the technical field of lead-acid batteries, in particular to a negative plate for lead-acid batteries and a method for preparing the negative plate for lead-acid batteries. Background technique [0002] Lead-acid battery (VRLA) is a battery whose electrodes are mainly made of lead and its oxides, and the electrolyte is sulfuric acid solution. In the charged state of the lead-acid battery, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; in the discharged state, the main component of the positive and negative electrodes is lead sulfate. [0003] For lead-acid batteries, the electrode plate is one of the most important components, and its quality is directly related to the quality and service life of the entire lead-acid battery. The electrode plate is mainly composed of an alloy grid and an active coating coated on the alloy grid, wherein the alloy grid is m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/68H01M4/57H01M4/20
CPCH01M4/20H01M4/57H01M4/685Y02E60/10
Inventor 张天东张欣泉
Owner 萍乡市天东电器科技有限公司
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