Graphene composite electrode material with excellent electricity storage performance and preparation method thereof

A graphene composite and electrode material technology, applied in the direction of conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, circuits, etc., can solve problems such as impenetrability, achieve reliable performance, excellent electrical conductivity, and practical strong effect

Active Publication Date: 2017-01-11
郭鸣明 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, it is so dense that even the

Method used

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  • Graphene composite electrode material with excellent electricity storage performance and preparation method thereof

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Embodiment 1

[0022] (1) Weigh 30 parts of graphene, 3 parts of polyvinylidene fluoride, 5 parts of tetraethylene glycol, 2 parts of polyoxyethylene lauryl ether, 2 parts of tricarboxymethylpropane glycidyl ether, and 3 parts of coconut oil in parts by weight , 1 part of phthalic anhydride, 4 parts of triethanolamine salt, 3 parts of aluminum hydroxide, 4 parts of magnesium carbonate, 2 parts of oxalic acid, 1 part of ammonium dihydrogen phosphate, 4 parts of N-methyl-2-pyrrolidone, vinyl tri 3 parts of ethoxysilane, 3 parts of dimethyltriphenylmethane tetraisocyanate;

[0023] (2) Add graphene to concentrated sulfuric acid to oxidize to obtain graphene oxide materials, which are ultrasonically dispersed in N-methyl-2-pyrrolidone, and polyvinylidene fluoride, tetraethylene glycol, and polyoxyethylene lauryl are added at the same time Ether, tricarboxymethylpropane glycidyl ether, coconut oil, phthalic anhydride to obtain a graphene suspension, the ultrasonic power is 300W, and the ultrasoni...

Embodiment 2

[0030] (1) Weigh 35 parts of graphene, 4 parts of polyvinylidene fluoride, 7 parts of tetraethylene glycol, 3 parts of polyoxyethylene lauryl ether, 3 parts of tricarboxymethylpropane glycidyl ether, and 4 parts of coconut oil in parts by weight , 2 parts of phthalic anhydride, 5 parts of triethanolamine salt, 5 parts of aluminum hydroxide, 6 parts of magnesium carbonate, 3 parts of oxalic acid, 1 part of ammonium dihydrogen phosphate, 5 parts of cetyltrimethylammonium bromide, 3 parts - 4 parts of aminopropyltrimethoxysilane, 6 parts of sodium carboxymethylcellulose;

[0031] (2) Add graphene to concentrated sulfuric acid to oxidize to obtain graphene oxide materials, which are ultrasonically dispersed in cetyltrimethylammonium bromide, and polyvinylidene fluoride, tetraethylene glycol, polyoxygen Ethylene lauryl ether, tricarboxymethylpropane glycidyl ether, coconut oil, phthalic anhydride to obtain a graphene suspension, the ultrasonic power is 350W, and the ultrasonic time...

Embodiment 3

[0038] (1) Weigh 40 parts of graphene, 5 parts of polyvinylidene fluoride, 9 parts of tetraethylene glycol, 4 parts of polyoxyethylene lauryl ether, 4 parts of tricarboxymethylpropane glycidyl ether, and 5 parts of coconut oil in parts by weight , 3 parts of phthalic anhydride, 6 parts of triethanolamine salt, 8 parts of aluminum hydroxide, 8 parts of magnesium carbonate, 4 parts of oxalic acid, 2 parts of ammonium dihydrogen phosphate, 6 parts of sodium dodecylbenzenesulfonate, 3-shrink 5 parts of glyceryl etheroxypropyl trimethoxysilane, 7 parts of nitrile-phenolic resin;

[0039] (2) Add graphene to concentrated sulfuric acid to oxidize to obtain graphene oxide materials, which are dispersed in sodium dodecylbenzenesulfonate by ultrasonic waves, and polyvinylidene fluoride, tetraethylene glycol, and polyoxyethylene lauryl are added at the same time Ether, tricarboxymethylpropane glycidyl ether, coconut oil, phthalic anhydride to obtain a graphene suspension, the ultrasonic po...

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Abstract

The invention discloses a graphene composite electrode material with excellent electricity storage performance. The graphene composite electrode material with the excellent electricity storage performance is prepared by taking graphene, aluminum hydroxide, magnesium carbonate, oxalic acid and ammonium dihydrogen phosphate as main components, adding polyvinylidene fluoride, tetraglycol, polyoxyethylene laurel ether, tricarboxymethylpropane glycidyl ether, coconut oil, phthalate anhydride, triethanolamine salt, a dispersant, a silane coupling agent and an adhesive, and performing processes of ultrasonic dispersion, stirring and mixing, inert gas environment mixing, spray drying, material coating of an electrode and the like. Therefore, the prepared graphene composite electrode material with the excellent electricity storage performance is reliable in performance, excellent in conductive performance and good in electricity storage performance, has no pollution to the environment, can meet the requirements of industry, and has a relatively good application prospect.

Description

technical field [0001] The invention relates to the technical field of electrode materials, in particular to a graphene composite electrode material with excellent electricity storage performance and a preparation method thereof. Background technique [0002] In 2004, Andre Geim and Konstantin Novoselov, physicists at the University of Manchester, successfully separated graphene from graphite and confirmed that it can exist alone. Bell Prize in Physics. Before the discovery of boronene in late 2015, graphene was both the thinnest material and the strongest, with a breaking strength 200 times stronger than the best steel. At the same time, it has good elasticity, and the stretching range can reach 20% of its own size. Graphene is currently the thinnest and highest-strength material in nature. Its most potential application is to become a substitute for silicon, to manufacture ultra-miniature transistors, and to produce future supercomputers. Replace silicon with graphene, ...

Claims

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Application Information

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IPC IPC(8): H01B1/24H01B13/00
CPCH01B1/24H01B13/00
Inventor 张伟
Owner 郭鸣明
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