A preparation method of a ribbon-shaped hierarchical mesoporous nickel oxide high specific capacitance electrode material

A technology for high specific capacitance and electrode materials, which is applied in the preparation of nickel oxide electrode materials and the preparation of ribbon-shaped graded mesoporous nickel oxide high specific capacitance electrode materials. problem, to achieve the effect of simple process, low cost, and reduced diffusion path
CN104140128BInactive Publication Date: 2016-03-30TONGJI UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
TONGJI UNIV
Publication Date
2016-03-30
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a preparation method of a ribbon type graded mesoporous nickel oxide high-specific-capacitance electrode material. The preparation method comprises the steps that nickel sulfate, guanidine hydrochloride and sodium chloride are used as raw materials, mesoporous carbon is used as a template, and then the ribbon type graded mesoporous nickel oxide high-specific-capacitance electrode material is prepared through a template method. Compared with the prior art, the preparation method has the advantages that the mesoporous carbon is used as the template, the guanidine hydrochloride is used as precipitating agents firstly without adding any surface active agents, and deionized water is adopted as a reaction solvent; the raw materials are cheap, and the ribbon type graded mesoporous nickel oxide high-specific-capacitance electrode material is nontoxic, harmless, simple in technological process, controllable in particle morphology, free from complex postprocessing processes and low in cost, and has good application prospect.
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Description

technical field

[0001] The invention belongs to the technical field of new energy storage materials, and relates to a preparation method of a nickel oxide electrode material, in particular to a preparation method of a ribbon-shaped graded mesoporous nickel oxide high specific capacitance electrode material. Background technique

[0002] Supercapacitor (electrochemical capacitor) is a new type of energy storage device between traditional capacitors and batteries. It has the characteristics of fast charge and discharge speed, high power density, long cycle life and environmental friendliness. Therefore, supercapacitors have broad application prospects in electronic digital products, aerospace, electric vehicles and other fields. Nickel oxide has attracted extensive attention due to its easy availability, environmental friendliness, and high chemical stability. In recent years, there have been many reports on the preparation methods of NiO. For example, "Method for preparing ...

Claims

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