Flexible three-dimensional porous carbon material and preparation method and application thereof

A three-dimensional porous, carbon material technology, used in the manufacture of hybrid/electric double-layer capacitors, hybrid capacitor electrodes, etc., can solve problems such as increasing the diffusion distance and resistance of electrolyte ions and charges, affecting fast charging/discharging capabilities, and reducing capacitor performance. , to achieve the effect of excellent cycle stability, excellent capacitance performance, and improved energy density and power density
CN108074751AInactive Publication Date: 2018-05-25ZHONGBEI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHONGBEI UNIV
Publication Date
2018-05-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a flexible three-dimensional porous carbon material and a preparation method and application thereof. The method adopts a commercial melamine sponge which is low in cost as a three-dimensional flexible carbon skeleton template, and coal pitch as a carbon source, and obtains the flexible three-dimensional porous carbon material which is high in conductivity and high in specific surface area in one step through a KOH activation method; and the material is simple in preparation process, low in cost and suitable for industrial application. The material serves as a super capacitor electrode material, and has larger energy density, power density and excellent cycle stability.
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Description

technical field

[0001] The invention relates to a flexible three-dimensional porous carbon material and its preparation method and application, belonging to the technical field of new energy materials. Background technique

[0002] As an electrochemical energy storage device, supercapacitor has a series of advantages such as high energy density, long cycle life, small size, simple and portable, safe and non-polluting, and is widely used in mobile communications, information technology, consumer electronics, electric vehicles, aerospace It has broad application prospects in national defense science and technology, and is considered to be an ideal chemical power source. At present, commercial supercapacitors mainly use activated carbon as the electrode material. The performance of supercapacitors mainly depends on the specific surface area, pore size distribution, microstructure and conductivity of the electrode materials used.

[0003] Compared with other carbon materials, ...

Claims

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