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Activated carbon composite materials, its preparation methods, and lead -carbon batteries using the activated carbon composite material

A composite material and activated carbon technology, applied in the field of graphene and activated carbon, can solve the problem of graphene dispersion that has not been solved, and the battery performance has not been fundamentally improved, so as to increase quality, improve capacitance and improve dispersion uniformity. Effect

Active Publication Date: 2019-02-19
宁波中科孚奇能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, graphene is only used as a simple carbon material additive, and the dispersion problem of graphene has not been solved, and the battery performance of lead-carbon batteries has only been improved to a small extent, and the performance of the battery has not been fundamentally improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A kind of preparation method of activated carbon composite material is as follows:

[0047] (1) Coconut shell is used as raw material, coconut shell is carbonized and activated to make coconut shell activated carbon, and then it is ball milled for 12 hours with an alumina ball with a diameter of 10 mm, dried after ball milling, and then sieved with a 1000-mesh sieve and passed through two Ultrasonic water washing once to obtain activated carbon particles with uniform particles;

[0048] (2) adding graphene with sheet diameter less than 200um into water and carrying out ultrasonic dispersion treatment for 2h to obtain a dispersion with graphene concentration of 0.1wt%;

[0049] (3) Add the activated carbon particles obtained in step (1) to the dispersion in step (2), wherein the mass ratio of activated carbon to the dispersion is 1:25, stir and react at a constant temperature of 60°C, take it out after 5 hours, and Dry at 100°C, and then put it into a 500-mesh sieve for...

Embodiment 2

[0052] A kind of preparation method of activated carbon composite material is as follows:

[0053] (1) Coconut shell is used as raw material, coconut shell is carbonized and activated to make coconut shell activated carbon, and then it is ball milled for 12 hours with an alumina ball with a diameter of 6 mm, dried after ball milling, and then sieved with a 5000-mesh sieve and passed through two Ultrasonic water washing once to obtain activated carbon particles with uniform particles;

[0054] (2) adding carbon nanotubes with a length of less than 50um into water for ultrasonic dispersion treatment for 2 hours to obtain a dispersion with a carbon nanotube concentration of 2wt%;

[0055] (3) Add the activated carbon particles obtained in step (1) to the dispersion in step (2), wherein the mass ratio of activated carbon to the dispersion is 1:10, stir and react at a constant temperature of 100°C, take it out after 5 hours, and Dry at 270° C., and then put it into a 1000-mesh sie...

Embodiment 3

[0058] A kind of preparation method of activated carbon composite material is as follows:

[0059] (1) Coconut shell is used as raw material, coconut shell is carbonized and activated to make coconut shell activated carbon, and then it is ball milled for 12 hours with an alumina ball with a diameter of 6 mm, dried after ball milling, and then sieved with a 5000-mesh sieve and passed through two Ultrasonic water washing once to obtain activated carbon particles with uniform particles;

[0060] (2) Graphene with a sheet diameter of less than 200um and carbon nanotubes with a length of less than 50um are added to water for ultra-

[0061] Acoustic dispersion treatment for 2 hours to obtain a dispersion with a concentration of graphene and carbon nanotubes of 1 wt %;

[0062] (3) Add the activated carbon particles obtained in step (1) to the dispersion in step (2), wherein the mass ratio of activated carbon to dispersion is 1:20, stir and react at a constant temperature of 100°C,...

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Abstract

The invention discloses an activated carbon composite, a preparation method thereof and a lead-carbon battery using the same. The preparation method includes: compositing activated carbon with a loose structure and graphene or / and carbon nanotube, wherein the activated carbon material serves as a basic framework; embedding the graphene or / and carbon nanotube into the loose structure of the activated carbon to form the activated carbon composite material with a stable structure. Both mechanical structure stability and electroconductivity of the activated carbon are improved, specific surface area of the activated carbon is increased, and characteristics like capacitance and bulk density of the activated carbon are improved. When the activated carbon composite material is used in the carbon-lead battery, mechanical structure stability and electroconductivity of a cathode are improved, mixing uniformity of the cathode and lead paste can be improved, and overall performance of the lead-carbon battery is improved effectively.

Description

technical field [0001] The invention belongs to the technical fields of activated carbon and graphene, and in particular relates to an activated carbon composite, a preparation method thereof and a lead-carbon battery using the material. Background technique [0002] Due to the deterioration of the environment and the depletion of traditional energy sources, people's demand for new energy sources is gradually increasing. At present, all countries in the world are vigorously developing new energy technologies and vigorously expanding the application market of new energy. Clean energy systems such as wind energy and solar energy are currently the mainstream new energy production methods in society. However, many reasons such as the discontinuity and instability of new energy generation restrict the development of the new energy industry, resulting in the inability of the generated energy to be effectively used. As an important link between energy generation and energy utiliza...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/36H01M4/583H01M10/06B82Y30/00C01B32/15
CPCB82Y30/00C01P2004/80C01P2006/11C01P2006/12C01P2006/40H01M4/362H01M4/583H01M10/06Y02E60/10
Inventor 王建新林昊李亚东
Owner 宁波中科孚奇能源科技有限公司
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