Lead-acid storage battery and preparation method thereof

A lead-acid battery, lead-acid technology, applied in the direction of lead-acid battery, lead-acid battery construction, battery electrodes, etc., can solve the problems of poor overall comprehensive performance, frequent daily maintenance, short service life, etc., to achieve deep charging and discharging Cycle and discharge stability, long cycle charge and discharge life, and long service life

Inactive Publication Date: 2015-03-25
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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: Preparation of positive plate

[0039] The positive plate used in this embodiment for lead-acid storage battery includes a positive electrode grid and a positive electrode lead-acid layer covering both sides of the positive electrode grid, the thickness of the positive electrode grid is 2.4mm, and the thickness of the positive electrode lead-acid layer is 0.15mm . The positive grid is prepared from the following components in weight percentage: 0.1% calcium, 0.8% tin, 0.03% aluminum, and the rest is lead. The positive lead-acid layer is mainly prepared from the following components in parts by weight: 1000±1.0 parts of lead powder, 105±0.5 parts of water, 1.4g / cm 3 96.00±0.2 parts of sulfuric acid.

[0040] The preparation method of the above-mentioned positive plate specifically comprises the following steps:

[0041] (1) Positive grid casting: carried out in the automatic grid casting machine, put the lead ingot into the lead melting pot of the automatic...

Embodiment 2

[0051] Embodiment 2: the preparation of negative plate

[0052] This embodiment is used for the negative plate of lead-acid storage battery to comprise negative electrode grid and the negative electrode lead-acid layer that covers negative electrode grid two sides, and the thickness of described negative electrode grid is 2.4mm, and the thickness of described negative electrode lead-acid layer is 0.15mm . The negative electrode grid is prepared from the following components in weight percentage: 0.11% calcium, 0.15% tin, 0.03% aluminum, and the rest is lead. The negative electrode lead-acid layer is prepared from the following components in parts by weight: 1000±1.0 parts of lead powder, 90±0.2 parts of water, 1.4g / cm 3 84.00±0.2 parts of sulfuric acid.

[0053] The preparation method of the above-mentioned negative plate specifically comprises the following steps:

[0054] (1) Negative electrode grid casting: carried out in the automatic grid casting machine, put the lead ...

Embodiment 3

[0065] Embodiment 3: the preparation of lead-acid storage battery

[0066] The lead-acid storage battery of this embodiment includes a casing, a positive electrode plate, a negative electrode plate, and a separator arranged inside the casing, and an electrolyte injected into the casing. The positive plate used is the positive plate prepared in Example 1 of the present invention, and the negative plate used is the negative plate prepared in Example 2 of the present invention.

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Abstract

The invention provides a lead-acid storage battery. The lead-acid storage battery comprises a housing, a positive electrode plate, a negative electrode plate, a separating plate and electrolyte, wherein the positive electrode plate, the negative electrode plate and the separating plate are arranged in the housing; the electrolyte is injected into the housing; the positive electrode plate comprises a positive electrode plate grid, and positive electrode lead acid layers which cover two surfaces of the positive electrode plate grid; the positive electrode plate grid is prepared from the following components in percentage by weight: 0.05 to 0.2% of calcium, 0.6 to 1.0% of tin, 0.01 to 0.05% of aluminum, and the balance of lead; the negative electrode plate comprises a negative electrode plate grid, and negative electrode lead acid layers which cover two surfaces of the negative electrode plate grid; the negative electrode plate grid is prepared from the following components in percentage by weight: 0.05 to 0.2% of calcium, 0.1 to 0.5% of tin, 0.01 to 0.05% of aluminum, and the balance of lead. The lead-acid storage battery has the advantages of being high in large-current discharging stability, high in low-temperature starting capacity, outstanding in corrosion resistance, long in circular charging-discharging life, and remarkable in comprehensive performances.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a lead-acid battery and a preparation method of the lead-acid battery. 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 mainly a Pb-Ca-Sn alloy, and the active coating is m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/12H01M4/68H01M4/73
CPCH01M4/685H01M4/73H01M10/12Y02E60/10Y02P70/50
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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