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Method for preparing compound carbon polymer lead-acid battery

A lead-acid battery, composite carbon technology, applied in lead-acid batteries, lead-acid battery construction, battery electrodes, etc., can solve the problems of strong interlayer van der Waals force, material performance decline, large lap resistance, etc., to reduce heat Runaway phenomenon, enhanced mechanical properties, improved electrical conductivity

Active Publication Date: 2016-12-07
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the two-dimensional layered structure of graphene has a strong van der Waals force between layers, and it is easy to stack during use, resulting in a decrease in material performance.
Graphene is easy to agglomerate during the mixing process, and the lap resistance between graphene and graphene at the edge of graphene is relatively large.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method of a composite carbon polymer lead-acid battery. When the lead-acid battery is prepared, the conductive agent in the positive electrode paste is a composite carbon polymer, and the composite carbon polymer includes the following raw materials in parts by weight: 500 parts of graphene, nano Carbon tube 500 copies.

[0031] Get 500g graphene, add surface modifier in graphene powder, stir while adding, graphene powder is dissolved in water after graphene is soaked completely, 500g carbon nanotube is joined in the graphene solution, in After ultrasonication in a water bath at 45°C for 2 hours, change to a high-speed mixer and stir for 3 hours, filter the obtained mixed slurry, put the obtained powder into a closed container and pass nitrogen gas, raise the temperature to 550°C, and maintain it for 1.5 hours to obtain composite carbon . Dissolve 600g of polyaniline in a specific solvent and stir until the polymer is completely dissolved. Slowly add 300g...

Embodiment 2

[0033] A kind of preparation method of composite carbon polymer lead-acid battery, when lead-acid battery is prepared, the conductive agent in positive lead paste is composite carbon polymer, and described composite carbon polymer is made up of the raw material of following weight part: graphene 480 parts, 520 parts of carbon nanotubes, 30 parts of additives, 900 parts of conductive polymer and 15 parts of iridium acetylacetonate. The auxiliary agent is composed of the following raw materials in parts by weight: 5 parts of hydroxyethyl cellulose, 10 parts of modified nano-zircon powder, 5 parts of turpentine alcohol and 15 parts of silane coupling agent. The preparation method of the modified nano-zircon powder is as follows: crush the zircon powder into 2-3 cm, put it into a hydrogen peroxide solution with a mass fraction of 72%, ultrasonically vibrate for 10 hours, take it out and dry it, and calcinate it at 450°C for 2 hours, and then Grinding into nano powder to obtain mod...

Embodiment 3

[0040] A preparation method of a composite carbon polymer lead-acid battery, the conductive agent in the positive lead paste is a composite carbon polymer when the lead-acid battery is prepared, and the composite carbon polymer is composed of the following raw materials in parts by weight: 500 parts of graphene, 500 parts of carbon nanotubes, 40 parts of additives, 600 parts of conductive polymer and 18 parts of iridium acetylacetonate. The auxiliary agent is composed of the following raw materials in parts by weight: 8 parts of hydroxyethyl cellulose, 12 parts of modified nano zircon powder, 7 parts of turpentine alcohol and 20 parts of silane coupling agent. The preparation method of the modified nano-zircon powder is as follows: crush the zircon powder into 2-3 cm, put it into a hydrogen peroxide solution with a mass fraction of 76%, ultrasonically vibrate for 11 hours, take it out and dry it, and then calcinate it at 480°C for 2.5 hours. Then grind it into nano powder to o...

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Abstract

The invention provides a method for preparing a compound carbon polymer lead-acid battery. The preparation method comprises preparation of a compound carbon material, compounding with a conducting polymer and preparation of a battery. The prepared compound carbon material is physically mixed with the conducting polymer to obtain a compound carbon polymer composite material. The compound carbon conducting polymer composite material is added into a positive electrode of the lead-acid battery, so that the conductivity of the positive electrode can be effectively improved; the void ratios of positive electrode active substances are increased; and meanwhile, agglomeration of graphene can be blocked, and a carbon material can form a space conductive network structure. The conducting polymer can be taken as a conducting framework in the positive electrode active substances to restrain early argillization of the positive electrode, so that the cycle life is prolonged. The prepared compound carbon conducting polymer lead-acid battery has the characteristics of short forming time, long battery cycle life and high capacity.

Description

technical field [0001] The invention belongs to the technical field of lead-acid battery manufacturing, and in particular relates to a composite carbon polymer lead that can effectively improve the conductivity and porosity of the positive electrode active material of the battery so as to improve the performance of the battery, improve the capacity, discharge performance and service life of the battery Preparation method of acid battery. Background technique [0002] The porosity and conductivity of the positive active material in lead-acid batteries are important factors affecting the performance of the positive plate. High porosity can improve the initial capacity of the battery and the capacity under high-rate discharge conditions, and good electrical conductivity can shorten the formation process cycle of the positive plate, reduce positive electrode sliming, and improve the utilization rate of living matter. [0003] As a new type of two-dimensional carbon material, gr...

Claims

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Application Information

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IPC IPC(8): H01M10/12H01M4/62H01M10/06B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H01M4/624H01M4/625H01M4/628H01M10/06H01M10/12Y02E60/10Y02P70/50
Inventor 石沫戴贵平吴亮柯娃吴秋菊
Owner CHAOWEI POWER CO LTD
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