High-performance lead-carbon negative electrode lead paste and preparation method thereof

A negative electrode lead paste, high-performance technology, applied in negative electrodes, active material electrodes, battery electrodes, etc., can solve the problems that hydrogen suppressors cannot meet the requirements of lead-carbon batteries, the power characteristics and hydrogen evolution of lead-carbon batteries, etc. , to achieve the effect of simple and scientific formula design, high power characteristics, and solving the difficulty of dispersion

Inactive Publication Date: 2020-09-25
ZIBO TORCH ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current common carbon materials, lead paste preparation methods and hydrogen suppressors have not been able to meet the needs of lead-carbon batteries, so that the power characteristics and hydrogen evolution capacity of lead-carbon batteries cannot meet the use requirements

Method used

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  • High-performance lead-carbon negative electrode lead paste and preparation method thereof
  • High-performance lead-carbon negative electrode lead paste and preparation method thereof
  • High-performance lead-carbon negative electrode lead paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Corn starch (passed through 200 mesh sieve) → 220°C muffle furnace high temperature treatment, 6h → -10°C low temperature quenching, 5min → room temperature set aside, 1h → 50% sulfuric acid solution soaking, 24h → absolute ethanol soaking, 2h → ether soaking , 20min → drying at 80°C, 30min → planetary ball mill grinding treatment, agate balls, 15min (1000 rpm) → passing through a 120-mesh sieve → complete the preparation of corn starch-based carbon black, set aside.

[0029] Dissolve 5g of sodium lignosulfonate in 240ml of battery water. After the lignin is completely dissolved, add 20g of the prepared corn starch-based carbon black, conductive polyaniline powder→ultrasonic stirring at 50°C, 30min→mechanical stirring, 10min (3000 turn / min), slowly add 106ml of 50% sulfuric acid solution during the stirring process (lignin re-precipitation process) → stir and add to 2kg of lead powder within 10min, mix with 16g of barium sulfate, 3g of yttrium fluoride and 3g of polyprop...

Embodiment 2

[0037] Corn starch (passed through 200 mesh sieve) → 220°C muffle furnace high temperature treatment, 6h → -15°C low temperature quenching, 7min → room temperature settling, 1h → 50% sulfuric acid solution soaking, 26h → absolute ethanol soaking, 2.5h → ether Soaking, 25min → drying at 80°C, 35min → planetary ball mill grinding, agate balls, 15min (1000 rpm) → passing through a 120-mesh sieve → complete the preparation of corn starch-based carbon black, set aside.

[0038]Dissolve 125g of sodium lignosulfonate in 6L of battery water. After the lignin is completely dissolved, add 500g of the prepared cornstarch-based carbon black, 50g of conductive polythiophene powder→ultrasonic stirring at 50°C for 30min→mechanical stirring for 10min( 3000 rev / min), slowly add 2650ml of 50% sulfuric acid solution (sodium lignosulfonate re-precipitation process) in the stirring process → stir and join in the lead powder of 50kg in 10min, with the barium sulfate of 400g, 75g dysprosium fluoride ...

Embodiment 3

[0050] Corn starch (through a 300-mesh sieve) → 300°C muffle furnace high temperature treatment, 8h → -10°C low temperature quenching, 10min → room temperature settling, 2h → 50% sulfuric acid solution soaking, 30h → absolute ethanol soaking, 3h → ether soaking , 30min → dry at 100°C, 40min → planetary ball mill grinding treatment, agate balls, 15min (1000 rpm) → pass through a 120 mesh sieve → complete the preparation of corn starch-based carbon black, set aside.

[0051] Dissolve 125g of sodium lignosulfonate in 6000ml of battery water, after the lignin is completely dissolved, add 120g of prepared cornstarch-based carbon black, 75g of two powders of conductive polyaniline and polythiophene (the mass ratio of the two is 2: 3)→Ultrasonic stirring at 50°C, 30min→mechanical stirring, 10min (3000 rpm), slowly add 2650ml of 50% sulfuric acid solution during the stirring process (re-precipitation process of sodium lignosulfonate)→add 50kg of sulfuric acid solution within 10min of s...

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Abstract

The invention relates to high-performance lead-carbon negative electrode lead paste and a preparation method thereof, and belongs to the technical field of lead-carbon batteries. The high-performancelead-carbon negative electrode lead plaster is obtained by compounding a carbon material, a conductive polymer and other assistants by using a method of dissolving sodium lignosulphonate and then separating out sodium lignosulphonate. According to the high-performance lead-carbon negative electrode lead paste, the formula design is simple and scientific, and the prepared product is good in conductivity, high in power characteristic and small in hydrogen evolution amount. The invention also provides a simple and feasible preparation method which is beneficial to industrial production.

Description

technical field [0001] The invention relates to a high-performance lead-carbon negative electrode paste and a preparation method thereof, belonging to the technical field of lead-carbon batteries. Background technique [0002] Compared with other secondary chemical new power sources, such as lithium-ion batteries, traditional lead-acid batteries have short life and low specific energy, and low power also limits their applications in many fields, especially in applications that require fast charging In the field, it is required that the power supply not only has a higher capacity, but also has a higher charging and discharging power to ensure a short charging time. As a new technology in the field of lead-acid battery technology, lead-carbon battery combines the high capacity and low cost of traditional lead-acid batteries with the high power of capacitors, so this technology has become a research hotspot in the past ten years. In the process of lead-carbon battery research,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/62H01M4/57H01M10/06
CPCH01M4/57H01M4/624H01M4/625H01M10/06H01M2004/027Y02E60/10
Inventor 唐胜群陈龙霞战祥连吴涛姜兆华李敏王玉莹李艳芬兰正法
Owner ZIBO TORCH ENERGY
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