Method for preparing nitrogenous porous carbon material for electrode material of super-capacitor

A technology of supercapacitors and electrode materials, applied in capacitors, electrolytic capacitors, circuits, etc., to achieve the effects of low cost, good rate performance, and simple preparation process
CN101837969BInactive Publication Date: 2011-09-21UNIV OF SCI & TECH BEIJING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF SCI & TECH BEIJING
Publication Date
2011-09-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing a nitrogenous porous carbon material for an electrode material of a super-capacitor, which belongs to the field of electrochemistry and new energy materials. The method comprises the following steps of: using amino-glucose hydrochloride or amino-glucose sulfate as a raw material; preparing a nitrogenous porous carbon precursor by using a hydro-thermal method; mixing the precursor with potassium hydroxide; and realizing one-step carbonization and activation under the protection of an inert gas. The prepared nitrogenous porous carbon material has an appropriate specific area, and appropriate nitrogen content, the specific capacitance of the nitrogenous porous carbon material in aqueous electrolyte can be up to 270 F / g, the specific capacity of the nitrogenous porous carbon material in an organic system can be 160 F / g, and the nitrogenous porous carbon material is an ideal electrode material of the super-capacitor.
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Description

technical field

[0001] The invention discloses a method for preparing a nitrogen-containing porous carbon material for supercapacitor electrode materials, belonging to the fields of electrochemistry and new energy materials. Background technique

[0002] Climate warming, environmental pollution and energy shortage are major challenges facing mankind at present, and the development of green and renewable energy storage devices is an important issue before mankind. As a new type of green energy storage device, supercapacitors have much higher energy density than traditional capacitors and much higher power density than batteries. application prospects. For example, in terms of high-performance electric vehicles, the supercapacitor is connected in parallel with the battery and the fuel cell. The battery provides energy in normal working conditions, and the supercapacitor supplies energy when pulse energy is needed, so that the service life of the battery can be extended, and t...

Claims

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