Negative pole lead paste for lead-carbon super storage battery and preparation method thereof

A technology of super battery and negative electrode paste, which is applied in the direction of lead-acid battery electrodes, battery electrodes, circuits, etc., and can solve problems such as poor binding force, sulfation, and poor cycle performance

Active Publication Date: 2011-05-25
ZHUZHOU SMELTER GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although increasing the carbon content in the negative electrode greatly prolongs the service life of the lead-acid battery in HRPSoC operation and its performance is similar to that of the Ni-MH battery, the carbon in the negative electrode tends to swell during the deep cycle process and when used as an energy storage battery. Shedding, poor binding, poor cycle performance in high and low temperature environments, and severe sulfation problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 62.84kg of lead powder, 35kg of lead-carbon composite material with a mass percentage of 25% of lead, 0.5kg of sodium lignosulfonate, 0.3kg of barium sulfate, 0.5kg of carbon black, polyester fiber with a length of 8mm and a diameter of 12μm 0.06kg, 0.8kg of humic acid for lead-acid batteries, put the above materials into the paste mixer and stir for 25 minutes, then quickly add 10.7kg of deionized water, mix for 50 minutes, and the pouring density is 1.35g / cm 3 (25°C) sulfuric acid solution 8.7kg, mixed for 1.5 hours, the temperature of the paste was controlled to be 50~60°C during the paste process, and when the temperature dropped to 45°C, the material was discharged to obtain the negative lead paste for lead-carbon super battery. Paint the negative plate. The coated plate can be processed according to the usual curing and drying process of the lead-acid battery plate, and enter the assembly and internalization process of the super battery. The craft is carrie...

Embodiment 2

[0033] Weigh 93kg of lead powder, 2kg of lead-carbon composite material with a mass percentage of 38% of lead, 1.35kg of sodium lignosulfonate, 0.78kg of barium sulfate, 0.8kg of carbon black, 0.07kg of polyester fiber with a length of 8mm and a diameter of 12μm. kg, 2kg of humic acid for lead-acid batteries, put the above materials into the paste machine and stir for 10 minutes, then quickly add 13kg of deionized water, mix for 80 minutes, and the pouring density is 1.4g / cm 3 (25 DEG C) of sulfuric acid solution 11kg, mixed for 0.5 hours, the temperature of the paste was controlled to be 50-60 DEG C during the paste process, and when the temperature dropped to 45 DEG C, the material was discharged to obtain the negative lead paste for lead-carbon super batteries.

[0034] The preparation process of the lead-carbon composite material used in this embodiment is as follows: the specific surface area is 1530m 2 / g Activated carbon, carbon black, polyvinylidene fluoride and nitrog...

Embodiment 3

[0036] Weigh 1 kg of lead powder, 95 kg of lead-carbon composite material with a mass percentage of 55% of lead, 0.05 kg of sodium lignosulfonate, 2.8 kg of barium sulfate, 0.1 kg of carbon black, and 0.05 kg of polyester fiber with a length of 8 mm and a diameter of 12 μm. kg, 1kg of humic acid for lead-acid batteries, put the above materials into the paste machine and stir for 30 minutes, then quickly add 10kg of deionized water, mix for 20 minutes, and the pouring density is 1.3g / cm 3 (25°C) of sulfuric acid solution 7kg, mixed for 2.5 hours, the temperature of the paste was 50-60°C during the control and paste process, and discharged when the temperature dropped to 45°C to obtain the negative lead paste for lead-carbon super batteries.

[0037] The preparation process of the lead-carbon composite material used in the present embodiment is as follows: the specific surface area is 2030m 2 / g Activated carbon, carbon black, polyvinylidene fluoride and nitrogen methyl pyrrolid...

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Abstract

The invention relates to negative pole lead paste for a lead-carbon super storage battery. The lead paste is prepared by mixing solid raw materials consisting of 1 to 93 percent of lead powder and 2 to 95 percent of lead-carbon composite material by using a paste mixing machine via a dry-mixing method and a wet-mixing method. The lead-carbon composite material of the negative pole lead paste for the lead-carbon super storage battery is prepared by the electro-deposition method and contains 25 to 55 weight parts of lead. The negative pole lead paste can increase the porosity and the utilization rate of negative pole active substances, improve the contraction state of a negative polar plate and enhance the bonding force between the lead paste and the polar plate as well as between the lead powder and the active carbon with high specific area, functions like a negative pole lead paste super capacitor under the condition of high carbon-added quantity, and improves the comprehensive performance of the storage battery.

Description

technical field [0001] The invention relates to a lead-acid storage battery electrode material and a preparation method thereof, in particular to a negative electrode paste of a super storage battery used for electric power and energy storage and a preparation method thereof, belonging to the technical field of storage batteries. Background technique [0002] Due to its stable performance and low cost, lead-acid batteries are still one of the alternative batteries for hybrid and pure electric vehicles in the new energy industry. As early as 1996, there was a report of valve-regulated lead-acid batteries for hybrid electric vehicles (HEV). After 2000, a lot of research and promotion and application were carried out under the impetus of the American Advanced Lead-Acid Battery Association (ALABC). However, for power batteries, charging acceptance is an important indicator of the battery, which reflects the battery's acceptance of the charged electricity, and it directly affects...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/56H01M4/20
CPCY02E60/126Y02E60/10
Inventor 石光李正明张德晶陈红雨王辉
Owner ZHUZHOU SMELTER GRP
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