Three-dimensional electrode material, preparation method therefor, and solid super-capacitor

A technology for supercapacitors and three-dimensional electrodes, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve the problem of small contact area of ​​active materials, improve area specific capacitance, improve conductivity, and increase contact area Effect

Active Publication Date: 2017-05-10
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the nano-manganese dioxide electrode prepared by this method has relatively good electrical conductivity and energy density (can meet the performance requirements of supercapacitors), the structure of the nano-manganese dioxide electrode formed by pressing, its active material The contact area is still small

Method used

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  • Three-dimensional electrode material, preparation method therefor, and solid super-capacitor
  • Three-dimensional electrode material, preparation method therefor, and solid super-capacitor
  • Three-dimensional electrode material, preparation method therefor, and solid super-capacitor

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Embodiment 1

[0032] This embodiment firstly provides a kind of three-dimensional electrode material, and it mainly comprises: the Al nano nail array formed on the aluminum foil; The nickel layer formed on the Al nano nail array; The MnO formed on the nickel layer x Nanopin arrays. Further, the thickness of the nickel layer is 100-500 nm. Among them, MnO x Refers to manganese oxide, generally speaking, x=1~2, such as manganese oxide (MnO), manganese dioxide (MnO 2 ), manganese trioxide (Mn 2 o 3 ) etc., it can be a kind of manganese oxide, also can be to contain more than two kinds of manganese oxides, for example can be to contain MnO and MnO at the same time 2 . In this example, MnO x Is the choice of MnO 2 A detailed description will be given as a specific example.

[0033] like figure 1 As shown, the preparation method of the above-mentioned three-dimensional electrode material comprises steps:

[0034]S101, an Al nanonail array grown on an aluminum foil by using an anodic oxi...

Embodiment 2

[0041] This embodiment provides a solid supercapacitor. like Figure 4 Said, the capacitor comprises a gold-sprayed polyethylene terephthalate film 1, a first electrode 2, a second electrode 3, a first electrode 2 and a gold-sprayed polyethylene terephthalate film which are sequentially stacked. Glycol ester film 1. Wherein, the first electrode is an electrode prepared from the three-dimensional electrode material provided in Example 1, the second electrode is a CCG (chemical convert graphene, chemically converted graphene) electrode, and the first electrode and the second electrode are A gel electrolyte is attached to the electrodes.

[0042] Wherein, the preparation of the first electrode 2 refers to the method provided in Example 1.

[0043] The preparation of the second electrode 3 specifically includes: 100-110 mL of GO (graphite oxide, graphite oxide) solution with a concentration of 0.5 mg / mL, 0.2-0.5 mL of hydrazine hydrate with a concentration of 35 wt % and 0.35-0...

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Abstract

The invention discloses a three-dimensional electrode material, and the material is characterized in that the material comprises an Al nanonail array formed on aluminium foil; a nickel layer formed on the Al nanonail array; and an MnOx nanonail array formed on the nickel layer. The preparation method comprises the steps: S101, growing the Al nanonail array on the aluminium foil through employing the anode oxidation technology and the etching technology; S102, growing the nickel layer on the Al nanonail array through employing the magnetron sputtering technology; S103, growing the MnOx nanonail array formed on the nickel layer through employing a three-electrode electrodeposition technology, and obtaining the three-dimensional electrode material. The invention also discloses a solid super-capacitor, and the super-capacitor comprises an electrode prepared through the three-dimensional electrode material. The electrode material is used in the solid super-capacitor, improves the area ratio specific capacitance of the capacitor, and also improves the multiplying power and circulating performances of the capacitor.

Description

technical field [0001] The invention relates to the technical field of supercapacitors, in particular to a three-dimensional electrode material and a preparation method thereof, and also to a solid supercapacitor. Background technique [0002] Supercapacitors, also known as electrochemical capacitors and electric double layer capacitors, are special capacitors developed in recent years based on the electrochemical process of the electrode / solution interface and specially used for energy storage. Supercapacitors have high specific power, and the power density is hundreds of times higher than that of traditional electrolytic capacitors. Supercapacitors have a long cycle life, and the charge and discharge cycle life is as long as more than 500,000 times. Therefore, supercapacitor is an ideal secondary power supply, which has extremely important and broad application prospects in mobile communications, information technology, electric vehicles, aerospace and national defense te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/36H01G11/26H01G11/86
CPCY02E60/13
Inventor 张跃钢侯远丘勇才李桂珠杨洁刘美男周莉莎李宛飞
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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