Graphene battery positive material with high specific capacity and preparation method thereof

A battery positive electrode and graphene technology, which is applied in the direction of battery electrodes, circuits, electrical components, etc., can solve the problems affecting the specific capacity, accumulation or agglomeration of graphene positive electrode materials, and achieve high capacity, meet the needs of use, and good coulombic efficiency. Effect

Inactive Publication Date: 2018-09-18
姜雪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is van der Waals force between the sheets of graphene material, which is easy to cause problems such as stacking or agglomeration, which will affect the specific capacity of graphene as a positive electrode material, which limits its application.

Method used

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  • Graphene battery positive material with high specific capacity and preparation method thereof

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Embodiment 1

[0021] A graphene battery cathode material with high specific capacity, comprising the following raw materials in parts by weight: 6 parts of graphene, 3 parts of vanadium pentoxide, 2.4 parts of sodium dodecylbenzenesulfonate, 4 parts of benzoic acid, nanometer dioxide 5 parts of silicon, 4 parts of silicon carbide particles, 3 parts of lithium metasilicate, 6 parts of passion fruit and 0.8 parts of zinc oxide. Graphene includes graphene oxide.

[0022] The preparation method of the graphene battery cathode material with high specific capacity, concrete steps are as follows:

[0023] Step 1: Squeeze the passion fruit into juice and add the passion fruit juice into a fermenter, ferment at 38 degrees Celsius for 270 minutes, filter to obtain the passion fruit fermentation liquid, and divide the passion fruit fermentation liquid into two parts;

[0024] Step 2, graphene is crushed to 60 mesh and added in acetone twice its weight, and ultrasonically oscillated to obtain a graphe...

Embodiment 2

[0030] A graphene battery cathode material with high specific capacity, comprising the following raw materials in parts by weight: 7.2 parts of graphene, 3.4 parts of vanadium pentoxide, 3 parts of sodium dodecylbenzenesulfonate, 4.8 parts of benzoic acid, nanometer dioxide 6.2 parts of silicon, 5.5 parts of silicon carbide particles, 5 parts of lithium metasilicate, 7.5 parts of passion fruit and 1 part of zinc oxide. The particle diameter of nano silicon dioxide is 35nm, and the particle diameter of silicon carbide particles is 0.06mm.

[0031] The preparation method of the graphene battery cathode material with high specific capacity, concrete steps are as follows:

[0032] Step 1: Squeeze the passion fruit into juice and add the passion fruit juice into a fermenter, ferment at 40 degrees Celsius for 280 minutes, filter to obtain the passion fruit fermentation liquid, and divide the passion fruit fermentation liquid into two parts;

[0033] Step 2, graphene is crushed to 6...

Embodiment 3

[0039] A graphene battery cathode material with high specific capacity, comprising the following raw materials in parts by weight: 9.2 parts of graphene, 3.8 parts of vanadium pentoxide, 3.6 parts of sodium dodecylbenzenesulfonate, 5.4 parts of benzoic acid, nanometer dioxide 7.6 parts of silicon, 7 parts of silicon carbide particles, 8.8 parts of lithium metasilicate, 9.5 parts of passion fruit and 1.3 parts of zinc oxide. Graphene uses multi-layer graphene.

[0040] The preparation method of the graphene battery cathode material with high specific capacity, concrete steps are as follows:

[0041] Step 1: Squeeze the passion fruit into juice and add the passion fruit juice into a fermenter, ferment at 44 degrees Celsius for 280 minutes, filter to obtain the passion fruit fermentation liquid, and divide the passion fruit fermentation liquid into two parts;

[0042] Step 2, graphene is crushed to 60 mesh and added in acetone twice its weight, and ultrasonically oscillated to o...

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Abstract

The invention discloses a graphene battery positive material with high specific capacity and a preparation method thereof. The graphene battery positive material comprises the following raw materialsin parts by weight: 6 to 10 parts of graphene, 3 to 4 parts of vanadium pentoxide, 2.4 to 4 parts of sodium dodecyl benzene sulfonate, 4 to 6 parts of benzoic acid, 5 to 8 parts of nanosilicon dioxide, 4 to 8 parts of silicon carbide particles, 3 to 10 parts of lithium metasilicate, 6 to 10 parts of passion fruit and 0.8 to 1.5 parts of zinc oxide. The graphene battery positive material is wide inraw material source, different raw materials are prepared by adopting different technologies, the raw materials are of a synergistic effect, the prepared finished product has the advantages of good initial coulombic efficiency, high capacity and high cycling stability, and the using requirement of people can be met.

Description

technical field [0001] The invention relates to the field of graphene batteries, in particular to a graphene battery cathode material with high specific capacity. Background technique [0002] Due to the continuous consumption of fossil fuels, mainly oil and coal, and the increasing environmental pollution, such as the current smog weather and automobile exhaust have become the number one killer of human health, which have seriously affected human health and the living environment. More and more people are turning their attention to new energy technologies, and the development of new energy has become the focus of energy strategies in many countries, and graphene batteries are one of the important directions. [0003] Graphene battery is a new energy battery developed by utilizing the characteristics of rapid and massive shuttle movement of lithium ions between the graphene surface and electrodes. In a narrow sense, graphene refers to single-layer graphite with a thickness ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/62
CPCH01M4/625Y02E60/10
Inventor 姜雪
Owner 姜雪
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