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Preparing method of positive plate lead paste for power type lead acid storage battery

A technology of lead-acid battery and preparation method, which is applied in the direction of battery electrodes, circuits, electrical components, etc., can solve the problems of low specific energy, high cost, and short life, and achieve high specific energy, strong high-current discharge capacity, and cycle life long effect

Inactive Publication Date: 2012-10-10
SHANDONG SACRED SUN POWER SOURCES
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Problems solved by technology

[0002] At present, based on the demand and development trend of new energy in China, the application mode of lead-acid battery has changed from the conventional standby and low current and low power application mode to the application mode of high current and high power. The dilemma of low energy and short life
At present, the common methods for improving the specific energy and life of lead-acid batteries in China are: 1. Thinning the electrode to increase the specific surface area of ​​the electrode, but this method has the disadvantages of high cost of production control quality and low efficiency; 2. Adding soluble additives and improving The specific surface of the battery in the early stage, but this method has the disadvantage of not being able to maintain the battery capacity continuously; 3. Increase the concentration of the electrolyte, but this method has the disadvantage of accelerating the sulfation of the plate; 4. Add conductive substances to improve discharge depth, but this method has the disadvantage of high cost

Method used

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Embodiment Construction

[0006] First prepare the lead paste formula, the weight percentage of the ingredients is: lead powder 100kg, short fiber 0.11kg, trilead tetroxide 50kg, tin powder 2kg, conductive graphite 1.30kg, lead acid barium 2.50kg, deionized water 10000-13000g , the concentration is 1.35g / cm 3 (25°C) sulfuric acid 8200-7000ml. First, mix and stir lead powder, short fiber, trilead tetroxide, tin powder, conductive graphite, and barium lead acid for 5-10 minutes until uniform; add deionized water within 1-3 minutes and continue stirring for 5-6 minutes. ~ 15 minutes evenly add the concentration of 1.3-1.4g / cm 3 (25°C) sulfuric acid, continue to stir for no less than 10 minutes until uniform, the temperature should be controlled within 20-70°C during the whole process; finally fine-tune with deionized water to control the density of the lead paste before discharging to 4.2-4.8g / cm 3 .

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Abstract

A preparing method of positive plate lead paste for power type lead acid storage battery relates to lead acid storage batteries. At present, domestic lead acid storage batteries face difficulties of low specific energy and short service life in the prior art. The preparing method of the positive plate lead paste for the power type lead acid storage battery is characterized in that the formula of the positive plate lead paste is as follows: 100 kg lead powder, 0.10 to 0.12 kg short fiber, 30 to 50 kg red lead, 1 to 3 kg tin powder, 1.00 to 1.50 kg conductive graphite, 2.00 to 3.00 kg barium plumbate, 10000 to 1300 g deionized water, and 8200 to 7000 ml sulfuric acid with the concentration of 1.30 to 1.40 g / cm<3> (25 DEG C). The invention has the benefits that the preparing method of the positive plate lead paste for the power type lead acid storage battery has the advantages of high specific energy, strong heavy-current discharging capability and long circulating service life.

Description

technical field [0001] The invention relates to a lead-acid battery, in particular to a method for preparing a positive plate lead paste for a power-type lead-acid battery. Background technique [0002] At present, based on the demand and development trend of new energy in China, the application mode of lead-acid battery has changed from the conventional standby and low current and low power application mode to the application mode of high current and high power. The dilemma of low energy and short life. At present, the common methods for improving the specific energy and life of lead-acid batteries in China are: 1. Thinning the electrode to increase the specific surface area of ​​the electrode, but this method has the disadvantages of high cost of production control quality and low efficiency; 2. Adding soluble additives and improving The specific surface of the battery in the early stage, but this method has the disadvantage of not being able to maintain the battery capac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/56H01M4/62
CPCY02E60/12Y02E60/10
Inventor 王涛
Owner SHANDONG SACRED SUN POWER SOURCES
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