Three-dimensional electrode material and preparation method thereof, solid supercapacitor

A technology for supercapacitors and three-dimensional electrodes, which is applied in the manufacture of hybrid/electric double layer capacitors and electrodes of hybrid capacitors, etc., can solve the problems of small contact area of ​​active materials, improve area specific capacitance, increase energy density, improve rate characteristics and The effect of cycle performance
CN106653387BActive Publication Date: 2019-03-08SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
Publication Date
2019-03-08

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Abstract

The invention discloses a three-dimensional electrode material, which is characterized in that it comprises: an array of Al nanonails formed on an aluminum foil; a nickel layer formed on the array of Al nanonails; a MnO layer formed on the nickel layer x Nanopin arrays. The preparation method includes: S101, growing an Al nanonail array on an aluminum foil by using an anodic oxidation process and an etching process; S102, growing a nickel layer on the Al nanonail array by using a magnetron sputtering process; S103, using a three-electrode electric The deposition process grows MnO on the nickel layer x Nanonail arrays to obtain three-dimensional electrode materials. The invention also discloses a solid supercapacitor, which comprises the electrode prepared from the above-mentioned three-dimensional electrode material. The electrode material is applied in a solid supercapacitor, which improves the area specific capacitance of the capacitor, and also improves the rate characteristic and cycle performance of the capacitor.
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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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