Titanium-carbide-coated straw-based activated carbon composite electrode material and preparation method thereof

A composite electrode and activated carbon-based technology, which is applied in the manufacture of hybrid capacitor electrodes, hybrid/electric double layer capacitors, etc., can solve the problems of low specific capacitance of carbon materials and low cycle life of electrode materials, and achieve high charge density and enhanced surface Utilization rate, improvement of conductivity and effect of storage performance

Inactive Publication Date: 2015-07-15
ANHUI JIANGWEI PRECISION IND
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Problems solved by technology

Conductive polymers have the advantages of low price and high conductivity, but the electrode materials prepared from them have low cycle life
For electric double layer capacitors, the capacitance value is proportional to the electrode/electrolyte interface, so the performance of the electrode is limited by the surface are

Method used

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Embodiment Construction

[0013] specific implementation plan

[0014] The present invention will be described in detail below through specific examples.

[0015] A titanium carbide-coated straw-based activated carbon composite electrode material, made of the following raw materials in parts by weight (kg): tin nitrate 3, silicon dioxide 1, lithium acetate 3, ammonium chloroiridate 1, chromium trifluoride 1, Silver fluoride 1, silane coupling agent KH-5501, titanium carbide 4, polyaniline composite material 5, straw 1200, anhydrous potassium hydroxide 4, deionized water 10;

[0016] The polyaniline composite material is made of the following raw materials in parts by weight (kg): 5 p-toluenesulfonic acid, 7 hydrochloric acid, 5 nano-silica, 3 montmorillonite, 10 aniline, 0.4 ammonium persulfate, deionized water 35; The preparation method is to add p-toluenesulfonic acid to 4-6mol / l hydrochloric acid solution, stir evenly to form a mixed solution, then add nano-silica and montmorillonite to the mixed...

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Abstract

The invention discloses a titanium-carbide-coated straw-based activated carbon composite electrode material. The composite electrode material is characterized by being prepared from raw materials in parts by weight as follows: 2-3 parts of nitric acid, 1-2 parts of silicon dioxide, 2-3 parts of lithium acetate, 1-2 parts of ammonium hexachloroiridate, 1-2 parts of chromium trifluoride, 1-2 parts of silver fluoride, 1-2 parts of a silane coupling agent KH-550, 3-5 parts of titanium carbide, 3-5 parts of a PAN (polyaniline) composite material, 1000-1200 parts of straw, 3-5 parts of anhydrous potassium hydroxide and 5-10 parts of deionized water. The PAN composite material has the advantages of low price, high charge density and the like and can improve electrical conductivity and electrical storage performance after added to the electrode material; the titanium carbide has high hardness, wear resistance and conductivity and effectively increases the surface utilization rate, reduces the resistance and improve the specific capacity of the electrode material after added to the electrode material.

Description

technical field [0001] The invention relates to the field of chemical energy materials, in particular to a titanium carbide-coated straw-based activated carbon composite electrode material and a preparation method thereof. Background technique [0002] Climate warming, environmental pollution and energy shortage are major challenges facing mankind at present, and the development of green and renewable energy storage devices is an important issue before mankind. As a new type of green energy storage device, supercapacitors have much higher energy density than traditional capacitors and much higher power density than batteries. application prospects. According to different energy storage mechanisms, supercapacitors can be divided into electric double layer capacitors and pseudocapacitors or redox capacitors. Electric double layer capacitors rely on the electric double layer at the interface between the electrode and the electrolyte to store charges, and the electrode materia...

Claims

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Application Information

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IPC IPC(8): H01G11/44H01G11/48H01G11/86
CPCY02E60/13H01G11/44H01G11/48H01G11/86
Inventor 周池莲鲍启兵万美云
Owner ANHUI JIANGWEI PRECISION IND
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