Lead-acid storage battery and preparation method thereof

A lead-acid battery, sulfuric 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., and is conducive to deep charge-discharge cycle. and discharge stability, long cycle charge and discharge life, and long service life

A lead-acid battery, sulfuric 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., and is conducive to deep charge-discharge cycle. and discharge stability, long cycle charge and discharge life, and long service life

CN104466266BInactive Publication Date: 2017-04-19萍乡市天东电器科技有限公司
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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 the present embodiment includes a shell, a positive plate, a negative plate, a separator arranged inside the shell, and an electrolyte injected into the shell. 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

Patent Timeline
19 Apr 2017
Publication
CN104466266B
IPC
H01M10/12; H01M4/68; H01M4/73
CPC
H01M4/685; H01M4/73; H01M10/12; Y02E60/10; Y02P70/50
Inventors
张天东; 张欣泉