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Electrode material of nanometer porous film capacitor and preparation method thereof

A film capacitor and nanoporous technology, applied in the field of materials, can solve problems such as poor conductivity and limited charge and discharge rates

Inactive Publication Date: 2016-11-09
YILI NORMAL UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, nickel oxide itself is poorly conductive, which limits its charge-discharge rate in high-power applications

Method used

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  • Electrode material of nanometer porous film capacitor and preparation method thereof
  • Electrode material of nanometer porous film capacitor and preparation method thereof
  • Electrode material of nanometer porous film capacitor and preparation method thereof

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Embodiment Construction

[0018] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following technical solutions in the present invention are clearly and completely described. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0019] The nanoporous film capacitor electrode material provided by the invention is prepared by the following method:

[0020] The base material nanoporous gold (NPG) is prepared by placing a 100nm-thick gold-silver alloy film in concentrated nitric acid by a dealloying corrosion method, and freely corroding it for 20-60min at 20-50°C. NPG is used as the base material, and it is placed in the plating solution. The preparation of the plating solution: in the 1-3m...

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Abstract

The invention provides an electrode material of a nanometer porous film capacitor and a preparation method thereof. The method comprises the following steps of: taking nanometer porous gold as a substrate material, putting the nanometer porous gold into a plating solution with nickel nitrate as a main component, and loading nickel on a nanometer porous gold surface by using a chemical plating method; and keeping the nanometer porous gold loaded with the nickel in the air for a certain time. The nanometer porous gold is taken as a substrate, and the metal Ni is modified on the surface of the nanometer porous gold by the interface chemical plating method. The Ni is contacted with oxygen in the air to form NiO, and a nanometer porous nickel oxide film material is obtained. SEM and EDS tests show that the prepared NiO material keeps the porous structure of the substrate and improves the electrical conductivity and ion conductivity of the electrode material. The prepared porous nickel oxide is good super capacitor electrode material with exploitation potential.

Description

technical field [0001] The invention relates to the field of material technology, and to the preparation of supercapacitor electrode materials, in particular to a nanoporous film capacitor electrode material and a preparation method thereof. Background technique [0002] As a new type of energy storage device, supercapacitor has excellent characteristics such as short charging time and long cycle life, but its application field is limited due to its low energy storage density. Transition metal oxides such as nickel oxide have high capacity for storing charges, are cheap and easy to obtain, and are environmentally friendly, so they can be used to make supercapacitor electrode materials. However, nickel oxide itself is poorly conductive, which limits its charge-discharge rate in high-power applications. Therefore, there is a need to develop a thin film material for a supercapacitor that not only has good electrical conductivity but also improves the electric double layer capa...

Claims

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Application Information

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IPC IPC(8): H01G11/86H01G11/46H01G11/24H01G11/28
CPCH01G11/24H01G11/28H01G11/46H01G11/86Y02E60/13
Inventor 闫秀玲代思月沈丹
Owner YILI NORMAL UNIV
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