Graphite electrode negative electrode powder and preparation method thereof

A graphite electrode and negative electrode technology, applied in the field of electrodes, to achieve the effect of increasing the specific surface area, increasing the capacity, and benefiting the service life

Active Publication Date: 2020-09-15
宁夏众城新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcoming of the capacity of the battery in the prior art, and propose a kind of graphite electrode negative electrode powder and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A graphite electrode negative electrode powder, comprising the following steps: comprising the following steps: 10 parts of lead oxide, 5 parts of magnesium oxide, 20 parts of graphite, 1 part of smoothing agent, 2 parts of dispersing agent, 0.5 part of desiccant, through the addition of smoothing agent , to ensure the smoothness of the surface of the particles, and at the same time, the dispersant avoids the agglomeration of the negative electrode powder, which is beneficial to the contact points between the particles and increases the specific surface area, which will increase the capacity of the battery and also benefit battery life;

[0024] The dispersant includes magnesium stearate, copper stearate and barium stearate, wherein the specific gravity of magnesium stearate, copper stearate and barium stearate is 2:1:4.

[0025] The desiccant includes calcium sulfate, calcium chloride, and activated alumina, wherein the specific gravity of calcium sulfate, calcium chlo...

Embodiment 2

[0038] A graphite electrode negative electrode powder, comprising the following steps: comprising the following steps: 15 parts of lead oxide, 8 parts of magnesium oxide, 30 parts of graphite, 2 parts of smoothing agent, 4 parts of dispersing agent, 1 part of desiccant, through the addition of smoothing agent , to ensure the smoothness of the surface of the particles, and at the same time, the dispersant avoids the agglomeration of the negative electrode powder, which is beneficial to the contact points between the particles and increases the specific surface area, which will increase the capacity of the battery and also benefit battery life;

[0039] The dispersant includes magnesium stearate, copper stearate and barium stearate, wherein the specific gravity of magnesium stearate, copper stearate and barium stearate is 2:1:4.

[0040] The desiccant includes calcium sulfate, calcium chloride, and activated alumina, wherein the specific gravity of calcium sulfate, calcium chlor...

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PUM

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Abstract

The invention relates to the technical field of electrodes, and particularly relates to graphite electrode negative electrode powder. The graphite electrode negative electrode powder comprises the following components: 10-15 parts of lead oxide, 5-8 parts of magnesium oxide, 20-30 parts of graphite, 1-2 parts of a smoothing agent, 2-4 parts of a dispersing agent and 0.5-1 part of a drying agent. The invention also provides a preparation method of the graphite electrode negative electrode powder. The graphite electrode negative electrode powder has the characteristics that agglomeration of thenegative electrode powder is avoided, so that contact points between particles are facilitated to increase the specific surface area, the capacity of the battery is improved, and meanwhile, the service life of the battery is prolonged.

Description

technical field [0001] The invention relates to the technical field of electrodes, in particular to a graphite electrode negative electrode powder and a preparation method thereof. Background technique [0002] The negative electrode powder plays the role of electricity conduction. It is generally made of graphite or conductive substances ground into powdery substances. It is in the form of fine particles. When the battery is used, it is easy to cause the agglomeration of the negative electrode powder and cause contact between particles. Points are reduced, and the specific surface area is reduced, which will reduce the capacity of the battery, and is also not conducive to the service life of the battery. Contents of the invention [0003] The purpose of the present invention is to solve the shortcoming of battery capacity in the prior art, and propose a graphite electrode negative electrode powder and a preparation method thereof. [0004] In order to achieve the above o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/62
CPCH01M4/62Y02E60/10
Inventor 范海兵高尚忠谭荣德高飞
Owner 宁夏众城新能源科技有限公司
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