Zr-Cu-based amorphous alloy compound electrode material and preparation method thereof

A composite electrode and amorphous alloy technology, which is applied in the manufacture of hybrid capacitor electrodes, hybrid/electric double layer capacitors, etc., can solve the problems of difficult control of composite electrode reaction parameters, inability to observe the deposition process, and long hydrothermal method time, etc., to achieve Electrochemical deposition is convenient, the synthesis path is optimized, and the effect of heating is not required

Inactive Publication Date: 2019-10-11
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The reaction parameters of the composite electrode prepared by this method are not easy to control, and the hydrothermal method has many disadvantages such as long time, waste of energy, and inability to observe the deposition process.

Method used

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  • Zr-Cu-based amorphous alloy compound electrode material and preparation method thereof
  • Zr-Cu-based amorphous alloy compound electrode material and preparation method thereof
  • Zr-Cu-based amorphous alloy compound electrode material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The zirconium rods and copper rods with a purity of 99.99% are polished off the surface oxide layer and cleaned with ethanol ultrasonically, according to the alloy composition Zr 50 Cu 50 The atomic ratio of Zr element and Cu element (Zr: 50at.%, Cu: 50at.%) accurately weighed a total of about 10g, put it into a vacuum non-consumable arc melting furnace, and melt it in an argon atmosphere , the arc temperature of each smelting is about 2500 ℃, and the smelting time is 5 minutes, and the next smelting will be carried out after the furnace is cooled and turned over. Melting 5 times until the alloy is evenly mixed to obtain a master alloy ingot.

[0038] Take about 3g of the master alloy and place it in a quartz tube with an opening of about 1mm at the bottom, and pump a high vacuum to 3×10 in a quenching strip machine. -3 Argon is filled after Pa, and the master alloy is melted by induction heating (induction current 20A) in an argon atmosphere, and the melt is sprayed ...

Embodiment 2

[0049] The preparation of nanoporous copper is the same as in Example 1, except that the electrochemical deposition time is changed to 60s to prepare the nickel hydroxide / nanoporous copper composite material, and other steps are the same as in Example 1.

[0050] The specific capacitance of the composite supercapacitor prepared in this example is 450.4 F / g.

Embodiment 3

[0052] The preparation of nanoporous copper is the same as in Example 1, except that the electrochemical deposition time is changed to 90s to prepare the nickel hydroxide / nanoporous copper composite material, and the rest of the steps are the same as in Example 1.

[0053] The specific capacitance of the composite supercapacitor prepared in this example is 584.1 F / g.

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Abstract

The invention discloses a Zr-Cu-based amorphous alloy compound electrode material and a preparation method thereof. The material comprises an amorphous core at the middle, nano-porous copper layers ontwo sides of the core and nickel hydroxide particles on the copper layers. The amorphous core is made from copper-zirconium alloy; the widths of the tough belts and hole diameters of the nano-porouscopper layers are 50-100nm, and the thicknesses of the nano-porous copper layers are about 2-3 microns; the sizes of the deposited nickel hydroxide particles are about 200-400nm, and the loading capacities of the same are 0.3-1.0mg/cm<2>. The copper-zirconium alloy comprises 30-70% of Zr and 70-30% of Cu. According to the Zr-Cu-based amorphous alloy compound electrode material and preparation method thereof provided by the invention, the electrochemical deposition condition can be adjusted through adjusting the voltage, time, electrolyte concentration and the like of electrochemical deposition, the deposition time is relatively short, heating is not needed, and the process is visible; and the prepared compound material can be directly applied to the electrode material of the supercapacitor.

Description

technical field [0001] The invention mainly belongs to the technical field of synthesis of supercapacitor electrode materials, in particular to a preparation method of a Zr-Cu-based amorphous alloy-based nickel hydroxide / nanoporous copper composite electrode material and its application in the field of supercapacitors. Background technique [0002] With the development and progress of science and technology, the traditional energy is further consumed, and the problem of environmental pollution is becoming more and more prominent. Therefore, people put forward new requirements for the field of high-power energy storage. Supercapacitors, also known as electrochemical capacitors, are widely used in hybrid power equipment and aerospace fields because of their high power density, fast charge and discharge speed, good cycle stability and environmental friendliness. The main factor determining the performance of capacitors is the structure and composition of capacitor electrode mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/24H01G11/26H01G11/86
CPCH01G11/24H01G11/26H01G11/30H01G11/86Y02E60/13
Inventor 夏超群朱德民李强杨泰杨志道宋光明宋来昂王鹏
Owner HEBEI UNIV OF TECH
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