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Composite component of lead oxide and graphene oxide and preparation method thereof

A composite material and oxide stone technology, which is applied in the field of electrochemical battery manufacturing, can solve problems such as inability to mix uniformly, and achieve the effect of reasonable component configuration and easy access to raw materials

Inactive Publication Date: 2019-05-07
SHUANGDENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly aims at the problem that the prior art cannot be uniformly mixed, and proposes a composite material component of lead oxide and graphene oxide with reasonable component configuration and easy-to-obtain raw materials, as well as a supporting preparation method. The method is simple to implement and the technical path Reasonable, low supporting process requirements, easy to mix components evenly

Method used

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  • Composite component of lead oxide and graphene oxide and preparation method thereof
  • Composite component of lead oxide and graphene oxide and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] In this example, add 1000 g of graphene oxide solution with a concentration of 0.2% into the mixer, then dissolve 45 g of lead acetate into the above graphene oxide solution, stir for 5 min, then add 2 g of oleic acid as a dispersant, and continue stirring for 10 min Make a mixed solution. Add 20g of sodium borohydride measured into the mixed solution, heat to 80°C±5°C while stirring, and react at this temperature for 1.5h. Then add 15g of sodium carbonate and 150g of water to form a sodium carbonate solution with a concentration of 10% in the stirring state, and stir for 15 minutes to obtain a mixed suspension of graphene oxide and sodium carbonate. Finally, the prepared mixed suspension of graphene oxide and sodium carbonate was suction filtered and cleaned to obtain a precipitate, which was placed in an experimental atmosphere electric furnace at 800°C and calcined for 6 hours under the protection of argon to obtain the The product is a composite material of lead ox...

Embodiment 2

[0026] In this example, 1000 g of graphene oxide solution with a measured concentration of 0.2% is added to the mixer, then 90 g of lead acetate is dissolved in the above graphene oxide solution, stirred for 10 min, then 2 g of polyethylene glycol is added as a dispersant, and Stir for 15min to make a mixed solution. Add 20g of sodium borohydride measured into the mixed solution, heat to 80°C±5°C while stirring, and react at this temperature for 2h. Then, in the stirring state, add a sodium carbonate solution with a concentration of 10% prepared by dissolving 30 g of sodium carbonate and 300 g of water, and stir for 30 minutes to obtain a mixed suspension of graphene oxide and sodium carbonate. Finally, the prepared graphene oxide and sodium carbonate suspension was suction-filtered and cleaned to obtain a precipitate, which was placed in an experimental atmosphere electric furnace at 900°C and calcined for 7 hours under the protection of argon to obtain the product It is a c...

Embodiment 3

[0028] In this example, add 1000 g of graphene oxide solution with a concentration of 0.2% into the mixer, then dissolve 120 g of lead acetate into the above graphene oxide solution, stir for 15 minutes, then add 2 g of polyvinylpyrrolidone as a dispersant, and continue stirring 20min to make a mixed solution. Add 20g of sodium borohydride measured into the mixed solution, heat to 80°C±5°C during stirring, and react at this temperature for 2.5h. Then, in the stirring state, add a sodium carbonate solution with a concentration of 10% prepared by dissolving 40 g of sodium carbonate and 400 g of water, and stir for 20 minutes to obtain a mixed suspension of graphene oxide and sodium carbonate. Finally, the prepared graphene oxide and sodium carbonate suspension was suction-filtered and washed to obtain a precipitate, which was placed in an experimental atmosphere electric furnace at 1000°C and calcined for 8 hours under the protection of argon to obtain the product It is a compo...

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Abstract

The invention discloses a composite component of lead oxide and graphene oxide. The composite component comprises the following components metered by mass ratio that: graphene oxide:dispersant:sodiumborohydride is 1:1:10, lead acetate:sodium carbonate is 3:1, wherein graphene oxide:lead acetate is 1:20 to 1:60. The present invention further comprises a matching preparation method. The method comprises the steps of: adding weighed graphene oxide to a mixer, adding lead acetate for uniform stirring, and adding the dispersant for stirring to form a mixed solution; adding the weighed sodium borohydride into the mixed solution, heating the mixed solution to the temperature of 80+-5 DEG C in the stirring process, and performing reaction in the temperature condition; and adding the weighed sodium carbonate in the stirring state, and obtaining a mixed suspension of graphene oxide and sodium carbonate after stirring, performing filtering and cleaning of the suspension to obtain a precipitate,putting the precipitate into an experimental atmosphere electric furnace for heating, and performing calcination in the argon shield to obtain the composite component of lead oxide and graphene oxide.

Description

technical field [0001] The invention belongs to the technical field of electrochemical battery manufacturing. Specifically, the invention relates to a composite material for preparing the negative electrode paste of a lead-acid storage battery, especially a composite material component of lead oxide and graphene oxide. The invention also relates to Matching preparation method. Background technique [0002] The discharge process of lead-acid batteries is essentially an electrochemical reaction process, in which the electrolyte reacts directly with the lead paste, and the by-product lead sulfate produced by this reaction directly adheres to the plate. As the discharge time and times increase, the lead sulfate crystal nuclei attached to the negative plate gradually grow. Due to the physical and chemical properties of the lead sulfate crystal grains, it is insoluble in the electrolyte and has a large resistivity, so it cannot be restored during charging. Since the amount of le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/36H01M4/57H01M4/62
CPCY02E60/10
Inventor 董庆亮孙中五楼志强杨宝峰
Owner SHUANGDENG GRP
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