A kind of znsp nano-rod material for supercapacitor and preparation method thereof

A supercapacitor, nanorod technology, applied in nanotechnology for materials and surface science, chemical instruments and methods, hybrid capacitor electrodes, etc., can solve problems such as low energy density and power density, achieve simple equipment and maintain shape. The effect of morphology and structural stability, high cycle stability

Active Publication Date: 2021-08-03
金华莱顿新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Only supercapacitors can provide very large energy in a short period of time, but the carbon materials currently used still require bulky capacitors due to their low energy density and power density, and some are even larger than shipping containers. Demand, people can only find new electrode materials to have higher power density, but also have high energy density, so as to achieve this goal

Method used

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  • A kind of znsp nano-rod material for supercapacitor and preparation method thereof
  • A kind of znsp nano-rod material for supercapacitor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1) Use a double-temperature zone horizontal tube furnace as the growth equipment; place the quartz boat at the lower airflow end of the horizontal tube furnace; use zinc acetate (Zn(CH3COO)2·2H2O) with a purity of more than 99% as the raw material, and place it in a horizontal The upper gas flow end of the tube furnace;

[0028] 2) The horizontal tube furnace is evacuated until the background vacuum degree is lower than 2.5Pa, and then the horizontal tube furnace is heated. The temperature of the raw material area is 850°C, and the temperature of the substrate area is 450°C;

[0029] 3) Introduce H2S through the gas pipeline, the gas flow rate is 20 sccm, and react for 30 minutes;

[0030] 4) After the reaction, turn off the power supply and maintain the H2S in step 3) until the furnace temperature drops to 200°C; then turn off the gas source, turn off the vacuum pump, and cool the furnace to room temperature naturally; take out the quartz boat and collect the prelimina...

Embodiment 2

[0039] 1) Use a double-temperature zone horizontal tube furnace as the growth equipment; place the quartz boat at the lower airflow end of the horizontal tube furnace; use zinc acetate (Zn(CH3COO)2·2H2O) with a purity of more than 99% as the raw material, and place it in a horizontal The upper gas flow end of the tube furnace;

[0040] 2) The horizontal tube furnace is evacuated until the background vacuum degree is lower than 2.5Pa, and then the horizontal tube furnace is heated. The temperature of the raw material area is 850°C, and the temperature of the substrate area is 450°C;

[0041] 3) Introduce H2S through the gas pipeline, the gas flow rate is 19 sccm, and the reaction is 30 minutes;

[0042]4) After the reaction, turn off the power supply and maintain the H2S in step 3) until the furnace temperature drops to 200°C; then turn off the gas source, turn off the vacuum pump, and cool the furnace to room temperature naturally; take out the quartz boat and collect the prel...

Embodiment 3

[0050] 1) Use a double-temperature zone horizontal tube furnace as the growth equipment; place the quartz boat at the lower airflow end of the horizontal tube furnace; use zinc acetate (Zn(CH3COO)2·2H2O) with a purity of more than 99% as the raw material, and place it in a horizontal The upper gas flow end of the tube furnace;

[0051] 2) The horizontal tube furnace is evacuated until the background vacuum degree is lower than 2.5Pa, and then the horizontal tube furnace is heated. The temperature of the raw material area is 850°C, and the temperature of the substrate area is 450°C;

[0052] 3) Introduce H2S through the gas pipeline, the gas flow rate is 18 sccm, and react for 30 minutes;

[0053] 4) After the reaction, turn off the power supply and maintain the H2S in step 3) until the furnace temperature drops to 200°C; then turn off the gas source, turn off the vacuum pump, and cool the furnace to room temperature naturally; take out the quartz boat and collect the prelimina...

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Abstract

The invention discloses a ZnSP nanorod material used for a supercapacitor and a preparation method thereof. The ZnSP nanorod has a diameter of 30-90nm and a length of 150-300nm; the molar ratio of Zn, S and P elements is (0.47-0.49) :(0.42~0.46):(0.07~0.09); ZnSP nanorod materials are prepared by gas phase and hydrothermal two-step method, with zinc acetate powder as the source material of Zn, H2S as the source gas of S, and zinc phosphate as the source of P Materials and Zn supplementary source materials, using specific process steps and parameters to generate ZnSP nanorod materials; ZnSP nanorod materials are used in supercapacitor electrodes, showing capacitive characteristics, specific capacitance is 2300-2450F / g, cycle 10000 The specific capacitance retention rate after the second time is greater than 91.2%. The method for preparing the ZnSP nanorod material has low cost, is easy to operate, and can realize large-scale production.

Description

technical field [0001] The invention relates to the field of supercapacitor electrode materials, in particular to a metal compound electrode material for supercapacitors and a preparation method thereof. Background technique [0002] With the continuous consumption of fossil energy such as oil and natural gas, environmental pollution is becoming more and more serious, and clean energy such as solar energy, tidal energy, and wind energy has attracted increasing attention. For the efficient application of clean energy, in addition to energy generation devices, energy storage devices are also extremely important. In practice, for this intermittent clean energy, energy storage is the bottleneck restricting its wide application. Among energy storage devices, a supercapacitor is a new type of energy storage device with performance between traditional capacitors and secondary batteries. It has high power density, fast charge and discharge speed, wide temperature range, long cycle ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/30C01G9/00H01G11/24
CPCB82Y30/00B82Y40/00C01G9/006C01P2004/03C01P2004/16C01P2006/40H01G11/24H01G11/30Y02E60/13
Inventor 丁海兵吕建国
Owner 金华莱顿新能源科技有限公司
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