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Environment-friendly carbon-silicon composite material

A composite material, green and environmental protection technology, applied in electrical components, electrochemical generators, battery electrodes, etc., can solve the problems of electrode material structure pulverization and cycle performance decline, and achieve improved charge and discharge capacity, cheap raw materials, and stable cycle. good effect

Inactive Publication Date: 2014-12-10
QINGDAO HUA CHENG TIAN MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the silicon material will undergo a huge volume change during the charge and discharge process, which will easily cause the pulverization of the electrode material structure and lead to a decrease in cycle performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A green environment-friendly carbon-silicon composite material, comprising the following parts by weight: 64 parts of betel nut shell powder, 42 parts of nano-silicon powder, 12 parts of isobutyl methacrylate, 9 parts of nano-calcium sulfate, and 14 parts of organic montmorillonite 20 parts of stearic acid, 7 parts of polycarbodiimide, 9 parts of liquid paraffin, 14 parts of N-N`-diphenyl-p-phenylenediamine, 6.4 parts of aluminum triacetylacetonate, and 14 parts of graphite fluoride.

Embodiment 2

[0012] A green environment-friendly carbon-silicon composite material, comprising the following parts by weight: 55 parts of betel nut shell powder, 35 parts of nano-silicon powder, 10 parts of isobutyl methacrylate, 5 parts of nano-calcium sulfate, and 11 parts of organic montmorillonite 13 parts of stearic acid, 5 parts of polycarbodiimide, 5 parts of liquid paraffin, 10 parts of N-N`-diphenyl-p-phenylenediamine, 3.5 parts of aluminum triacetylacetonate, and 10 parts of graphite fluoride.

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PUM

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Abstract

The invention discloses an environment-friendly carbon-silicon composite material. The environment-friendly carbon-silicon composite material comprises the following substances in parts by weight: 55-64 parts of betelnut shell powder, 35-42 parts of nano-silicon powder, 10-12 parts of isobutyl methacrylate, 5-9 parts of nano-calcium sulfate, 11-14 parts of organic montmorillonite, 13-20 parts of stearic acid, 3-7 parts of polycarbodiimide, 5-9 parts of liquid paraffin, 10-14 parts of N-N'-diphenyl-p-phenylenediamine, 3.5-6.4 parts of aluminum acetylacetonate and 10-14 parts of carbon monofluoride. The environment-friendly carbon-silicon composite material has the beneficial effects that raw materials are low in cost, are wide in sources and meet the requirements of green chemical industry; a carbon material is composited with silicon by virtue of a mechanical ball-milling method, so that the preparation process is simple, and the materials are adequately composited together; the initial charge-discharge capacity of the carbon-silicon composite material disclosed by the invention is greatly increased, and the carbon-silicon composite material has good cycling stability.

Description

technical field [0001] The invention relates to a green and environment-friendly carbon-silicon composite material. Background technique [0002] In recent years, with the gradual reduction of non-renewable energy sources and more and more serious environmental problems in the world, green and pollution-free new high-energy chemical power sources have become a hot spot for the development of countries all over the world. Due to the advantages of high energy, long life, low consumption, no pollution, no memory effect, small self-discharge, low internal resistance, high cost performance, and less pollution, lithium-ion batteries are widely used in optoelectronics, information, transportation, national defense and military fields. . With the continuous development of miniaturized electronic equipment and the increasing demand for high-energy electronic equipment, people's requirements for miniaturized electronic equipment continue to increase, and new requirements are also put...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/133H01M4/134
CPCH01M4/133H01M4/134H01M4/364H01M10/0525Y02E60/10
Inventor 李松
Owner QINGDAO HUA CHENG TIAN MACHINERY MFG
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