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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  • Abstract
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  • Application Information

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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 mat

Method used

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Examples

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Example Embodiment

[0029] Example 1

[0030] A method for preparing 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, nanometer 500 copies of carbon tubes.

[0031] Take 500g of graphene, add the surface modifier to the graphene powder, stir while adding, dissolve the graphene powder in water after the graphene is completely infiltrated, add 500g carbon nanotubes to the graphene solution, After 2 hours of ultrasonic in a water bath at 45°C, it was changed to a high-speed mixer and stirred for 3 hours, the resulting mixed slurry was filtered, and the obtained powder was put into a closed container and nitrogen was introduced. The temperature was raised to 550°C and maintained for 1.5 hours to obtain composite carbon. . Dissolve 600g of polyaniline in a specific solvent a...

Example Embodiment

[0032] Example 2

[0033] A method for preparing a composite carbon polymer lead-acid battery. During the preparation of the lead-acid battery, the conductive agent in the positive electrode paste is a composite carbon polymer, and the composite carbon polymer is composed of the following raw materials in parts by weight: 480 parts of graphene, 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 and 15 parts of silane coupling agent. The preparation method of the modified nano zircon powder is: pulverize the zircon powder into 2-3cm, put it into a 72% hydrogen peroxide solution, oscillate it ultrasonically for 10h, take it out and dry it and calcinate it at 450℃ for 2h, then The modified nano-zirconium powder is obtained by gri...

Example Embodiment

[0039] Example 3

[0040] A method for preparing a composite carbon polymer lead-acid battery. During the preparation of the lead-acid battery, the conductive agent in the positive electrode paste is a composite carbon polymer, 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 and 20 parts of silane coupling agent. The preparation method of the modified nano-zirconium powder is: pulverize the zirconium powder into 2-3cm and put it in a 76% hydrogen peroxide solution, oscillate it ultrasonically for 11h, take it out and dry it and calcinate it at 480℃ for 2.5h. Then, it was ground into nano powder to obtain mo...

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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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